Measuring and Communication Module
NZM-XMC
05/10 MN01219001Z-EN
replaces 07/09 AWB1230-1630en
User Manual
All brand and product names are trademarks or registered
trademarks of the owner concerned.
Emergency On Call Service
Please call your local representative:
http://www.moeller.net/address
or
Hotline of the After Sales Service:
+49 (0) 180 5 223822 (de, en)
1
st
published 2009, edition date 07/09
2
nd
edition 05/2010
See revision protocol in the “About this manual“ chapter.
© 2009 by Eaton Industries GmbH, 53105 Bonn
Author:
Rainer Menden
Editor:
René Wiegand, Heidrun Riege
Translator:
globaldocs GmbH
All rights reserved, including those of the translation.
No part of this manual may be reproduced in any form
(printed, photocopy, microfilm or any other process) or
processed, duplicated or distributed by means of electronic
systems without written permission of Eaton Industries
GmbH, Bonn.
Subject to alteration without notice.
h
Caution!
The manual AWB1230-1630en is renamed from edition
05/10 in MN01219001Z-EN.
Rückenbreite festlegen! (1 Blatt = 0,106 mm, gilt nur für XBS)
(1 Blatt = 0,080 mm für Eberwein Digitaldruck bei 80 g/m
2
)
I
Before commencing the installation
• Disconnect the power supply of the device.
• Ensure that devices cannot be accidentally
restarted.
• Verify isolation from the supply.
• Earth and short circuit.
• Cover or enclose neighbouring units that
are live.
• Follow the engineering instructions (AWA)
of the device concerned.
• Only suitably qualified personnel in
accordance with EN 50110-1/-2
(VDE 0105 Part 100) may work on this
device/system.
• Before installation and before touching
the device ensure that you are free of
electrostatic charge.
• The functional earth (FE) must be
connected to the protective earth (PE) or
to the potential equalisation. The system
installer is responsible for implementing
this connection.
• Connecting cables and signal lines should
be installed so that inductive or capacitive
interference does not impair the
automation functions.
• Install automation devices and related
operating elements in such a way that they
are well protected against unintentional
operation.
• Suitable safety hardware and software
measures should be implemented for the
I/O interface so that a line or wire breakage
on the signal side does not result in
undefined states in the automation
devices.
• Ensure a reliable electrical isolation of the
low voltage for the 24 volt supply. Only
use power supply units complying with
IEC 60364-4-41 (VDE 0100 Part 410) or
HD 384.4.41 S2.
• Deviations of the mains voltage from the
rated value must not exceed the tolerance
limits given in the specifications, otherwise
this may cause malfunction and dangerous
operation.
• Emergency stop devices complying with
IEC/EN 60204-1 must be effective in all
operating modes of the automation
devices. Unlatching the emergency-stop
devices must not cause restart.
• Devices that are designed for mounting in
housings or control cabinets must only be
operated and controlled after they have
been installed with the housing closed.
Desktop or portable units must only be
operated and controlled in enclosed
housings.
Eato
n In
dust
ries GmbH
Safety in
struc
tion
s
Danger!
Dangerous electrical voltage!
II
• Measures should be taken to ensure the
proper restart of programs interrupted
after a voltage dip or failure. This should
not cause dangerous operating states even
for a short time. If necessary, emergency-
stop devices should be implemented.
• Wherever faults in the automation system
may cause damage to persons or property,
external measures must be implemented to
ensure a safe operating state in the event
of a fault or malfunction (for example, by
means of separate limit switches,
mechanical interlocks etc.).
1
05/10 MN01219001Z-EN
– Plug in the connectors for NZM…XMC-S0
– Plug in the connectors for NZM...XMC-MB
– Maximum and minimum electrical parameters
Contents
Contents
2
05/10 MN01219001Z-EN
– Display maximum and minimum values
– Deleting maximum and minimum values
– Configuration 44
MODBUS (RS485)
expansion card
– Configuration 46
Analog expansion card
– Configuration 48
Digital expansion card
3
05/10 MN01219001Z-EN
Introduction
This manual is the documentation for the NZM-XMC meas-
uring modules. The manual describes both device series -
NZMx-XMC-S0 and NZM…XMC-MB.
Target group
The content of the manual is written for engineers and elec-
tricians. A specialist knowledge of electrical engineering is
needed for commissioning.
Other manuals on the
devices
Additional information on the NZM-XMC measuring
modules is provided in the installation instruction
IL01219006Z2010-09 (AWA1230-2617).
List of revisions
Edition
date
Page
Key word
New
Modification
Deleted
05/10
j
j
all
General revision
j
Introduction
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05/10 MN01219001Z-EN
Reading conventions
The symbols used in this manual have the following mean-
ings:
X
indicates actions to be taken.
For greater clarity, the name of the current chapter is shown
in the header of the left-hand page and the name of the
current section in the header of the right-hand page. This
does not apply to pages at the start of a chapter and empty
pages at the end of a chapter.
h
Caution!
Warns of a hazardous situation that could result in
damage to the product or components.
i
Warning!
Warns of the possibility of serious damage and slight
injury.
j
Danger!
Warns of the possibility of a hazardous situation that
could result in major damage and serious or fatal injury or
even death.
h
Draws your attention to interesting tips and supplemen-
tary information
5
05/10 MN01219001Z-EN
1
Device overview
Introduction
The NZM-XMC measuring module is a measuring device for
measuring the electrical variables of 3-phase systems. It is
designed with a new mounting and installation concept.
The current carrying cables are passed through the device.
Punch screws are used to fasten the device to the cables and
the voltage is measured.
Actual values, minimum values and maximum values can be
calculated and output over a specified period for currents,
voltages and power.
The measuring and communication modules can be used
flexibly in a voltage range from 35 V to 690 V and for a
current range from 1.5 to 500 A.
The measuring and communication module can be mounted
at any location inside a control panel. The system can be
used regardless of the design and type of circuit-breaker
involved. All existing circuit-breakers and switch-disconnec-
tors can be used. Only the minimum clearance of the circuit-
breaker must be taken into account for mounting.
Once properly installed on wires or buss bars, the device
withstands weights up to 75 kg.
The device does not have a display nor any fixing possibility
for top-hat rails (C profile rails, DIN rails), and can be
fastened to cables easily.
Therefore, we avoid forcing the wires to any position, as
happen with DIN rail devices or devices with front panel
displays. If desired, the device can be fixed to a mounting
plate.
Device overview
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05/10 MN01219001Z-EN
Device types
Two sizes are available that are designed for the current
ranges of the NZM.
Size 2 (NZM2-XMC) has a range up to 300 A; the second size
3 (NZM3-XMC) has a range up to 500 A. Both sizes are
available in 3 pole or 4 pole versions (NZM…-4-XMC-…).
One version is provided with a digital S0 output (see also the
note on page 7) and another version is provided with a
MODBUS interface and display interface. A display unit with
LED display for showing the measured values is also avail-
able.
A total of eight types of NZM-XMC measuring and commu-
nication modules are available.
Table 1:
Overview of device types
Device type
Number
of poles
Maximum
current [A]
Property
Basic device
1)
NZM2-XMC-S0
3
300
Digital output S0
NZM3-XMC-S0
3
500
Digital output S0
NZM2-4-XMC-S0
4
300
Digital output S0
NZM3-4-XMC-S0
4
500
Digital output S0
NZM2-XMC-MB
3
300
+ MODBUS + display interface
NZM3-XMC-MB
3
500
+ MODBUS + display interface
NZM2-4-XMC-MB
4
300
+ MODBUS + display interface
NZM3-4-XMC-MB
4
500
+ MODBUS + display interface
Display
NZM-XMC-DISP
Display device for all basic devices
1) NZMx: x = 2: for currents up to 300 A; x = 3: for currents up to 630 A
Device types
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05/10 MN01219001Z-EN
h
S0 interface
The S0 interface is a hardware interface for transferring
electrical measured values. It is defined in the DIN 43 864
standard. The data is transferred by means of weighted
pulses (pulses per kWh); the weighting depends on the
type of meter.
Ensure correct polarity when connecting the interface,
since the output is implemented as a transistor or opto-
coupler. A maximum 27 V DC voltage can be connected.
The maximum current is approx. 30 mA.
The signal is generated by the meter as a current pulse.
A current flow less than 3 mA corresponds to a Low value.
A larger current flow is interpreted as a High value.
The S0 interface described above must not be confused
with the S0 bus within an ISDN installation!
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05/10 MN01219001Z-EN
9
05/10 MN01219001Z-EN
2
Installation
Mounting
The NZM-XMC measuring modules can be mounted in two
ways:
They can fastened either to a mounting plate or "hung
fastened" on the cables.
X
Guide the cable through the three tunnels.
Ensure that the phase sequence L1, L2, L3, N and the
current direction are correct. If necessary use a cable
adapter.
Figure 1: Inserting the cables
X
Fasten the device (if required) to the mounting plate. For
this the device does not have to be fastened separately,
but is simply secured by the cables or the distribution rail.
j
Electric current! Danger to life!
Only skilled or instructed persons may carry out the
following operations.
Installation
10
05/10 MN01219001Z-EN
Figure 2: Attachment to the mounting plate
X
Tighten the screws for the cable terminals.
M5 X 80
DIN 912
NZM...-XMC 191 mm
NZM...-4-XMC 2
33 mm
Mounting
11
05/10 MN01219001Z-EN
Figure 3: Tightening the screws
Allen M2.5
j
Danger of electrical shock!
For this wear protective gloves and use an insulated Allen
key.
Screws must punch the copper in order to perform the
voltage sensing
h
Hexagon keys with a ball head are not suitable for tight-
ening the screws.
The recommended tightening torque for the Toxfree ZH
RZ1-K top cable is 1.8 to 2 Nm.
12
05/10 MN01219001Z-EN
13
05/10 MN01219001Z-EN
3
Operation
The commissioning and operation of the NZM-XMC meas-
uring module are described in the following.
LED indicators
The NZM-XMC measuring module is provided with four
LEDs:
• Power On LED: Red flashing means that the device is
connected and working properly.
• LEDs L1, L2 and L3 indicate the following:
– Continuously lit: Phase and voltage are correct
– Fast flashing: No phase voltage present
– slow flash: phase sequence error
Pulse output
Pulse output is done via an NPN optoisolated transistor. It
must be biased externally.
The transistor for these types of devices can also be
connected via an internal resistor to a bias voltage. For this
connect the external power supply (5 to 48 V DC) with pin 1
of the terminal.
Network operation
The device is designed for operation in solidly grounded Wye
networks with four cables.
h
If you are using a 3 pole device, you must connect the
‘Neutral voltage’ connector to the neutral pole.
Operation
14
05/10 MN01219001Z-EN
Connecting the device
Plug in the connectors for NZM…XMC-S0
The following diagram shows the terminals of the
NZM…XMC-S0 version.
Figure 4: Terminals for NZM…XMC-S0 device version
The following table shows the terminal assignment.
Table 2:
Terminal assignment for NZM…XMC-S0
1 2 3
4 5 6 7
8 9
24 V DC supply
Neutral voltage
Nullleiter
Pulse output
Impulsausgang
Connection
Explanation
Pulse output
3 x 3.5 mm
Phoenix Contact MC 1.5/4-ST-3.5
1
Base voltage
2
NPN collector
3
NPN emitter
Neutral pole
4 x 3.5 mm
Phoenix Contact MC 1.5/4-ST-3.5
4
Neutral voltage V
n
5
Neutral voltage V
n
6
Neutral voltage V
n
7
Neutral voltage V
n
Supply
2 x 7.62 mm
Phoenix Contact GMVSTBR 2.5/2-ST-
7.62
8
GND
9
24 V DC supply voltage
Connecting the device
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Figure 5: Connection with external resistor
Figure 6: Connection when using the integrated resistor
The energy pulse rate is 15 pulses/kWh (300 A).
The energy pulse rate is 7 pulses/kWh (500 A).
h
Caution!
In 3 pole version, neutral voltage connector is internally
connected to V
n
(neutral voltage)
Vdd
GND
Output
2
3
Vdd
GND
Output
2
3
(+5...48 V DC)
1
Operation
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05/10 MN01219001Z-EN
Plug in the connectors for NZM...XMC-MB
The following figure shows the terminals of the
NZM…XMC-MB version.
Figure 7: Terminals for NZM…XMC-MB device version
The following table shows the terminal assignment.
Table 3:
Terminal assignment for NZM…XMC-MB
1 2 3
4 5 6 7
8 9 10 11 12 13 14 15 16 17
B A
RS485
24 V DC
Vn
DISPLAY
Exp card 2
Exp card 1
I1
I2
O1
O2
- +
COM
GND
Po2
Po1
18 19
Connection
Explanation
MODBUS isolated
1
GND isolated
2
B RS485
3
A RS485
MODBUS display
(not isolated)
4 x 3.5 mm
Phoenix Contact MC 1.5/4-ST-3.5
4
0 V (V
n
= Neutral voltage)
5
B RS485
6
A RS485
7
5 V DC (internal)
Inputs/outputs
(isolated)
10 x 5.08 mm
Phoenix Contact
MVSTBR 2.5/10-ST-5.08
8
Common output
(1/2 common)
9
Output 2
10
Output 1
11
GND
Connecting the device
17
05/10 MN01219001Z-EN
12
Input 1 (referenced to GND)
13
Input 1 (referenced to GND)
14
Pulse output 2 (Collector)
15
Pulse output 2 (Emitter)
16
Pulse output 1 (Collector)
17
Pulse output 1 (Emitter)
Supply
24 V DC-supply voltage
2 x 7.62 mm
Phoenix Contact
GMVSTBR 2.5/2-ST-7.62
18
GND
19
24 V
Connection
Explanation
h
Caution!
Pin 18 (24 V DC supply) is internally connected to pin 11
(I/O).
Pin 4 (MODBUS display) is internally connected to V
n
(neutral voltage).
Operation
18
05/10 MN01219001Z-EN
Additional power supply
The device must be fed with 3 W power supply and a DC
voltage of 18 to 36 V.
Figure 8: Connecting to the additional power supply
h
Use the NZM-XMC-AC device for connecting devices with
230 V.
Connecting the device
19
05/10 MN01219001Z-EN
Connecting the display
The pins 4 to 7 are provided on the NZM…XMC-MB device
for connecting the NZM-XMC-DISP display unit.
Figure 9: Display unit terminals
DISPLAY
4 x 0.5 mm
2
H 03 W - F
F 40 m
4
NZM...-XMC-MB
SV A B GND
5 6 7
NZM-XMC-DISP
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21
05/10 MN01219001Z-EN
4
Configuring the device
Table 4:
Summary of MODBUS funktion codes
The default setting for addressing the device is:
MODBUS device address:
2
9600 Baud; no parity; 1 Stop bit, 8 data bits
A special MODBUS command is used for the configuration
after the installation.
The command is sent as a broadcast (address 0), identifying
the device serial number, and setting its MODBUS address
and baud rate (data rate).
The MODBUS address and the data rate will be automati-
cally configured, without resetting the device.
Function
codes
Description
1
Read multiple coil status
Reading of bit variables (Coils)
2
Read multiple input status
Reading of bit variables (Inputs)
3
Read multiple holding registers
Reading of word variables (Register)
4
Read multiple input registers
Reading of word variables (Inputs)
5
Force single coils
Writing of a bit variable
6
Force single registers
Writing of a word variable
8
Loop back diagnostic test
(00: returnquery data)
Connection test
15
Force multiple coils
Writing multiple bit variables (Coils)
16
Force multiple registers
Writing multiple word variables (Register)
Configuring the device
22
05/10 MN01219001Z-EN
Table 5:
Device configuration data
Installation
The NZM-XMC device is designed for operation in solidly
grounded Wye networks with four cables.
MODBUS
Variable
Range
3000.30001
Device serial number
0 - 999999999
3002H
Device address
1 - 255
3002L
Baud rate
0: 9600 kbit/s
1: 19200 kbit/s
2: 38400 kbit/s
3: 56000 kbit/s
4: 57600 kbit/s
MODBUS register
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MODBUS register
The table below lists the MODBUS register ranges.
Table 6:
Assignment of the MODBUS registers
The register assignments are described below.
Variable
Register
Type
R = read/
W = write
a
page
Electrical parameters
0 - 95
R
Maximum values of the electrical parameters
96 - 191
R
Minimum values of the electrical parameters
192 - 287
R
Communications setup
1000 - 1002
R/W
Password setup
1050 - 1051
R/W
General configuration
1100 - 1105
R/W
Alarm 1
1150 - 1156
R/W
Alarm 2
1160 - 1166
R/W
Alarm 3
1170 - 1176
R/W
Alarm 4
1180 - 1186
R/W
Alarm 5
1190 - 1196
R/W
Alarm 6
1200 - 206
R/W
Maximum demand values
1250 - 1251
R/W
Special device configuration
1300
R/W
Address and baud rate
3000 - 3002
W
Serial number
10000 - 10001
R
-
Expansion card 1
20000 - 20003
R/W
Expansion card 2
20010 - 20013
R/W
Configuring the device
24
05/10 MN01219001Z-EN
Electrical parameters
Registers 0 to 95 (or 287) store the electrical values meas-
ured by the device (actual values).
Two MODBUS registers are required for each value. Each
parameter is thus assigned to a register of 32 bits (of type
“long” with sign bit).
The even-numbered register (left-hand side of the
“Register” column in table 7) contains the high section of
the integer value, whilst the odd-numbered register with the
(right-hand side of the “Register” column in table 7)
contains the low section of the integer value.
The following table 7 lists the electrical parameters.
h
Some MODBUS drivers decrement the register number
automatically according to the original convention of the
MODBUS system.
This is also the case with drivers of XC controllers. This
therefore requires the register number of the required
parameter in the application to be incremented by 1.
MODBUS register
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Table 7:
Electrical parameters
Parameter
Unit
Para-
meter
no.
Actual
value
register
Maximum
value
register
Minimum
value
register
R/
W
high
low
high
low
high
low
Voltage L1
mV
1
0
1
96
97
192
193
R
Current L1
mA
2
2
3
98
99
194
195
R
Active power L1
W
3
4
5
100
101
196
197
R
Reactive power L1
var
4
6
7
102
103
198
199
R
Power factor L1
-
5
8
9
104
105
200
201
R
Voltage L2
mV
6
10
11
106
107
202
203
R
Current L2
mA
7
12
13
108
109
204
205
R
Active power L2
W
8
14
15
110
111
206
207
R
Reactive power L2
var
9
16
17
112
113
208
209
R
Power factor L2
-
10
18
19
114
115
210
211
R
Voltage L3
mV
11
20
21
116
117
212
213
R
Current L3
mA
12
22
23
118
119
214
215
R
Active power L3
W
13
24
25
120
121
216
217
R
Reactive power L3
var
14
26
27
122
123
218
219
R
Power factor L3
-
15
28
29
124
125
220
221
R
Power 3-phases
W
16
30
31
126
127
222
223
R
Inductive reactive
power 3 phases
var
17
32
33
128
129
224
225
R
Capacitive reactive
power 3 phases
var
18
34
35
130
131
226
227
R
Consumed capacitive
reactive energy L1
kvarh
19
36
37
132
133
228
229
R
Power factor 3 phases
-
20
38
39
134
135
230
231
R
Frequency cable Lx
Hz x 10
21
40
41
136
137
232
233
R
Configuring the device
26
05/10 MN01219001Z-EN
Consumed
active energy L1
kWh
22
42
43
138
139
234
235
R
Consumed
active energy L2
kWh
23
44
45
140
141
236
237
R
Consumed
active energy L3
kWh
24
46
47
142
143
238
239
R
Produced
active energy L1
kWh
25
48
49
144
145
240
241
R
Produced
active energy L2
kWh
26
50
51
146
147
242
243
R
Produced
active energy L3
kWh
27
52
53
148
149
244
245
R
Consumed inductive
reactive energy L1
kvarh
28
54
55
150
151
246
247
R
Consumed inductive
reactive energy L2
kvarh
29
56
57
152
153
248
249
R
Consumed inductive
reactive energy L3
kvarh
30
58
59
154
155
250
251
R
Active energy 3-phase
kWh
31
60
61
156
157
252
253
R
Inductive reactive
energy 3 phase
kvarh
32
62
63
158
159
254
255
R
Capacitive reactive
energy 3 phase
kvarh
33
64
65
160
161
256
257
R
Apparent power
VA
34
66
67
162
163
258
259
R
Maximum demand of
parameter defined in
register 1250/1251
-
35
68
69
164
165
260
261
R
Parameter
Unit
Para-
meter
no.
Actual
value
register
Maximum
value
register
Minimum
value
register
R/
W
high
low
high
low
high
low
MODBUS register
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05/10 MN01219001Z-EN
Consumed capacitive
reactive energy L2
kvarh
36
70
71
166
167
262
263
R
Consumed capacitive
reactive energy L3
kvarh
37
72
73
168
169
264
265
R
Apparent power L1
VA
38
74
75
170
171
266
267
R
Apparent power L2
VA
39
76
77
172
173
268
269
R
Apparent power L3
VA
40
78
79
174
175
270
271
R
Temperature
ºC
41
80
81
176
177
272
273
R
Maximum demand
value L2
-
42
82
83
178
179
274
275
R
Maximum demand
value L3
-
43
84
85
180
181
276
277
R
Apparent energy
3 phase
kVAh
44
86
87
182
183
278
279
R
Produced active energy
3 phase
kWh
45
88
89
184
185
280
281
R
Produced inductive
reactive energy 3 phase
kvarh
46
90
91
186
187
282
283
R
Produced capacitive
reactive energy 3 phase
kvarh
47
92
93
188
189
284
285
R
Produced apparent
energy
3 phase
kVAh
48
94
95
190
191
286
287
R
Parameter
Unit
Para-
meter
no.
Actual
value
register
Maximum
value
register
Minimum
value
register
R/
W
high
low
high
low
high
low
Configuring the device
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05/10 MN01219001Z-EN
Maximum and minimum electrical parameters
Registers 96 to 191 store the maximum values of each
parameter (see column “Maximum” in table 7).
Registers 192 to 287 likewise store the minimum values
recorded (see column “Minimum” in table 7).
Communication (RS485) setup
Registers 1000 to 1002 are used for setting up the commu-
nication (RS485).
Register
Variable
Range
1000H
1)
Protocol
0 - MODBUS
1000L
2)
Device address
1 - 255 (default: 2)
1001H
1)
Baud rate
0: 9600 kbit/s
1: 19200 kbit/s
2: 38400 kbit/s
3: 56000 kbit/s
4: 57600 kbit/s
1001L
2)
Parity
0: no (default)
1: flat
2: odd
1002H
1)
Data bits
1 - 8 Bit
1002L
2)
Stop bits
0: 1 Bit (default)
1: 2 Bits
1) H = High byte
2) L = Low byte
h
To enable changes write “true” to coil 2000.
MODBUS register
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05/10 MN01219001Z-EN
Password setup
The settings can be password protected. In this way, data
cannot be deleted accidentally. The two registers 1050 and
1051 are used to set the password.
The password will be required in order to make any further
change on those registers.
Password setting
For protecting the registers, the password must be written at
position 1050, and then, 0x0100 must be written at position
1051.
Delete password
For un-protecting the registers, it is required to write, in the
same command, the password at position 1050, and a 0 at
position 1051.
Configuring the device
30
05/10 MN01219001Z-EN
General setup
These variables allow to perform some miscellaneous
setups.
• Register 1101L sets from which line will the device
measure the frequency (register 40h).
• Registers 1103 and 1104 define the pulse output rate. The
value is the required energy, in Wh, for each pulse.
• Register 1105 sets the pulse width, in 10ths of milli-
second.
• Register 1300 toggles between showing phase-phase and
phase-neutral voltage on the voltage registers. Maximum
and minimum voltage registers are affected as well.
Register
Variable
Range
1101L
1)
Line frequency to be measured
0: Line L1
1: Line L2
2: Line L3
1101H
2)
Not used
-
1103
Active energy output pulse rate
[Wh x pulse]
0 (deactivated) - 9999
1104
Reactive energy output pulse rate
[Wh x pulse]
0 (deactivated) - 9999
1105
Pulse width (in tenths of a
millisecond)
-
1300
Selects between phase-neutral or
phase-phase voltage.
0 (default value): Phase-neutral voltage
1: phase-phase voltage
20000 - 20003
Expansion card 1
-
20010 - 20013
Expansion card 2
-
1) L = Low byte
2) H = High byte
MODBUS register
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05/10 MN01219001Z-EN
Alarm setup
Up to six different alarm messages (load warnings) can be
set. These can be stored in six corresponding register ranges
( a table 8).
These are the alarm settings for the maximum and minimum
values, the trip delay, the monitored parameters and the
output.
• Outputs 1 and 2: Digital outputs of the main board
• Outputs 3 to 6: on expansion card at position 1
• Outputs 7 to 10: on expansion card at position 2
Table 8:
Registers for alarm messages
No. of the alarm
Register range
1
1150 - 1156
2
1160 - 1166
3
1170 - 1176
4
1180 - 1186
5
1180 - 1196
6
1200 - 1206
Register
Variable
Range
1150, 1151
Maximum value
Depends on parameter (default: 0)
1152, 1153
Minimum value
Depends on parameter (default: 0)
1154
Delay
0 - 9999 seconds (default value: 0)
1155H
1)
Parameter code
0 - 48 (0: deactivated)
1155L
2)
Output
0 - 10 (default: 0)
1) H = High byte
2) L = Low byte
Configuring the device
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05/10 MN01219001Z-EN
Maximum demand values
Selected value is sampled every “small” amount of time
during the selected period, and the average value of
sampled values is calculated (Max demand value). The
average is a moving average, so it only computes the values
sampled during the selected period. i.e. if we select 60
minutes, it will show the average of values sampled during
the last 60 minutes.
• “Initialize” resets to 0 all the values sampled during the
seledcted period.
• “Delete” resets the maximum value of the regies (i.e. the
parameters located at modbus registers 164 and 165, for
maximum demand1)
Registers 1250 and 1251 define the behaviour of the meter
for the maximum demand settings value.
The code of the parameter to be monitored must be entered
in register 1250. Register 1251 sets the window time in
minutes.
Register
Variable
Range
1250
Parameter code
0: no maximum setting
X: Parameter code (1 - 48)
1251
Window time (the period in which
the maximum demand value is to
be determined)
1 - 60 minutes
MODBUS register
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05/10 MN01219001Z-EN
Registers type relay: setup registers
Special commands
Reset communication configuration
Unknown configuration setup willcause a big problem to the
user. Configuration can be reset applying this sequence:
X
Power device off.
X
Connect digital input 0 to “0” logic level, and digital input
1 to “1” logic level.
X
LED 1 will be off, rest will be on.
You have 2 seconds for connecting both digital inputs to
“0”.
X
LED 1 will be on.
You have 2 seconds for connecting both digital inputs to
“1”.
X
LED1 will be off, rest will be on.
You have 2 seconds for connecting both digital inputs to
“0”.
Communication registers will reset to factory configuration
(MODBUS addresss 2, 9600 bps, 8, n, 1), and device resets
automatically.
Variable
Coils
Type
Digital outputs
0 - 9
R/W
Digital inputs
10 - 19
R
Reset
2000
W
Delete power values
2100
W
Initialise maximum acceptance value
2101
W
Erase maximum and minimum values
2102
W
Delete power (maximum/minimum
acceptance value)
2103
W
Delete maximum acceptance value
2104
W
Configuring the device
34
05/10 MN01219001Z-EN
Special device configuration
Mit MODBUS-Register 1300 können die Stromrichtung und
die Phasenfolge wie folgt umgeschaltet werden:
• Bit 0:
– 0 = Real current direction as indicated on the device.
– 1 = Real current direction opposite to the arrow on the
device.
• Bit 1:
– 0 = Phase order OK, as indicated on the device.
– 1 = Phase 1 and phase 3 are switched, compared to the
label on the device.
MODBUS register
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05/10 MN01219001Z-EN
Digital outputs
The range from 0 to 9 is available for the digital outputs.
Digital outputs use an isolated semiconductor relay with a
general terminal.
Enable/disable/read the status of digital outputs.
• 0, 1: The digital outputs of the main board
• 2 to 5: Expansion card 1
• 6 to 9: Expansion card 2
Digital inputs
The range from 10 to 19 is available for the digital inputs.
Read status of digital inputs.
• 10, 11: for the digital inputs of the main board
• 12 to 15: for expansion card 1
• 16 to 19: for expansion card 2
Reset
Resets the device. The setting is returned to 0.
Delete power values
This clears the counter for the power. The value is reset auto-
matically to 0.
Initialise maximum acceptance value
Initializes the maximum acceptance value and clears the
previous value. The setting is reset to 0.
Erase maximum and minimum values
This deletes the maximum and minimum values of each
parameter. The setting is reset to 0.
Deleting power values (maximum/minimum, accept-
ance value)
This setting corresponds to the sending of the three
commands above. The setting is returned to 0.
Delete maximum acceptance value
This setting only deletes the calculated value for maximum
acceptance; the values in the accumulation matrix are
retained. The setting is returned to 0.
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05/10 MN01219001Z-EN
37
05/10 MN01219001Z-EN
5
Display
Introduction
The NZM-XMC-DISP display unit is used to display the elec-
trical variables measured by the basic devices. The data is
transferred via an RS485 interface.
Display has the function of masters in the communication
and consequently, periodically, it interrogates to the meas-
uring device to read the electrical parameters that are
needed.
The variables are shown in the following figures.
Display design
The display shows the measured and calculated values in
four lines. The values of the individual cables L1, L2 and L3
are shown together in the display.
The display is provided with four pushbutton actuators at the
bottom edge.
• “reset” pushbutton actuator clears the display.
• Arrow pushbutton actuator: switches to the next value.
• “max” pushbutton actuator: shows the maximum values.
• “min” pushbutton actuator: shows the minimum values.
Display
38
05/10 MN01219001Z-EN
Order of displays
The following figures show examples of measured values in
the order how they are shown on the display by scrolling
with the arrow pushbutton actuator.
Figure 10: Order of displays (example)
• The first (i.e. left) display shows the voltage (measured in
Volt, V). Pressing the arrow pushbutton actuator activates
the next display:
• The measured currents are shown (measured in Amps, A).
• Pressing the pushbutton actuator again then causes the
active power (measured in kW) to be shown (third display
from left).
• Pressing the pushbutton actuator again causes the display
of the reactive power (measured in kvar).
Figure 11: Continuation of the above display order
• The next display then shows the power factor (=
y
).
• This is followed by information on power as well as induc-
tive and capacitive reactive power.
Order of displays
39
05/10 MN01219001Z-EN
• The next display shows the relevant information on
apparent power.
• The last display shows values (frequency, power factor) for
the three phases. Further pressing of the arrow push-
button actuator starts a new display cycle.
Line 4 of the energy values
Holding down the arrow pushbutton actuator (starting from
the first display) for two seconds moves the display of line 4
between the different energy types (active, reactive and
apparent). Press the arrow pushbutton actuator for two
seconds to move to the next energy type.
Figure 12: Order of the different energy types displayed
Display maximum and minimum values
Pressing the max. and min. pushbutton actuators will display
the maximum and minimum values for the current screen.
The relevant display texts will flash.
Deleting maximum and minimum values
Delete the displayed maximum and minimum values by
pressing the two max and min pushbutton actuators simul-
taneously. Press the max pushbutton actuator to toggle
between the options (“yes” and “no” ( a figure 13).
Display
40
05/10 MN01219001Z-EN
Figure 13: Deleting maximum and minimum values
If the display shows “yes” on the bottom line, pressing the
arrow pushbutton actuator will delete the value and cause
the display to switch to the next display: the power values.
Pressing the arrow pushbutton actuator enables you to
delete the power values as well. The max pushbutton actu-
ator can be used to toggle between “yes” and “no”.
Figure 14: Display when deleting energy values
You can delete the energy value by pressing the arrow push-
button actuator when “yes” is displayed.
C l r
E n e r
y e s
C l r
E n e r
n o
Order of displays
41
05/10 MN01219001Z-EN
The following display is then shown in which the default
screen is set:
Figure 15: Default display after deleting power values
After the arrow pushbutton actuator is pressed, the
following display will appear. This is used to set the default
value of the energy display in line 4.
E
Figure 16: Default display of energy values in line 4
This is followed by the switch-off delay for the display back-
light.
Figure 17: Switch-off delay for display backlight.
42
05/10 MN01219001Z-EN
43
05/10 MN01219001Z-EN
6
Expansion cards
Relay cards
The relay card provides the circuit-breaker with two or four
relays.
The relays can be operated manually or be linked to alarms.
Two relays card
Figure 18: +NZM-XMC-2D0-R, 2 changeover contacts
Four relays card
Figure 19: +NZM-XMC-4D0-R, 4 N/O contacts
RL1
RL2
NZM...-XMC-MB
+NZM-XMC-2DO-R
RL1
RL2
RL3
RL4
NZM...-XMC-MB
+NZM-XMC-4DO-R
Expansion cards
44
05/10 MN01219001Z-EN
Technical data
Configuration
Write access to the configuration register is through
MODBUS.
Manual relay operation
Each relay is linked with a MODBUS coil, i.eh. the desired
state (Low/High) is written to a linked MODBUS coil
(MODBUS command 05).
Unit
+NZM-XMC-2D0-R
+NZM-XMC-4D0-R
Maximum load current AC
A
10
5
Maximum load current DC
A
5
5
Insulation
V AC
3000
3000
Maximum Voltage
Open contacts
V AC
1000
750
Max. switching power NO
VA
2500
750
W
150
90
Max. switching power NC
VA
750
-
W
90
-
Connection
Phoenix Contact MC 1.5/6-ST-3.5 or similar
Coil
Outputs
0
NZM-XMC: Output Q1
1
NZM-XMC: Output Q2
2
Relay card 1: Output RL1
3
Relay card 1: Output RL2
4
Relay card 1: Output RL3
5
Relay card 1: Output RL4
MODBUS (RS485) expansion
card
45
05/10 MN01219001Z-EN
Trigger by alarm
Alarms (registers 1150–1200) can also be configured to the
outputs of the relay card.
MODBUS (RS485)
expansion card
The MODBUS expansion card provides an additional
MODBUS interface.
Figure 20: +NZM-XMC-MB , additional MODBUS expansion card
Table 9:
Pin assignment
1 2 3 4 5 6
+NZM-XMC-MB
NZM...-XMC-MB
PIN
Configuration
1, 2
Terminating resistor 120 O
3
B RS485
4
A RS485
5
NC
6
GND, isolated
Expansion cards
46
05/10 MN01219001Z-EN
Technical data
Configuration
Write access to the configuration register is through
MODBUS.
+NZM-XMC-MB
Protocol
MODBUS-RTU/RS485
Commands
03, 04
Isolation
2750 V
rms
Data transfer rate
9600,
19200,
38400,
56000,
57600,
115200
Parity
none, even, uneven
Stop bits
1.2
Connection
Phoenix Contact MC 1.5/6-ST-3.5 or
similar
h
The MODBUS expansion card must be fitted in slot 1.
Analog expansion card
47
05/10 MN01219001Z-EN
Changes are fully applied after NZM-XMC reset.
Analog expansion card
Provides the circuit-breaker with an insulated analog output.
Through the MODBUS register, the output can be specified
as current or voltage output.
Figure 21: +NZM-XMC-1AO, 1 isolated analog output
MODBUS
Description
Area
20000H
Protocol
0 - MODBUS
20000L
Device address
1 - 255,
default 4
20001H
Data transfer rate
0 - 9600,
1- 19200,
2 - 38400,
3 - 56000,
4 - 57600,
5 - 115200
20001L
Parity
0 - none,
1 - even,
2 - uneven
20002H
Data bits
1 - 8 bit
20002L
Stop bits
0 - 1 bit,
1 - 2 bits
1 2 3 4 5 6
+NZM-XMC-1AO
NZM...-XMC-MB
Expansion cards
48
05/10 MN01219001Z-EN
Table 10:
Pin assignment
Technical data
Configuration
Write access to the configuration register is through
MODBUS.
PIN
Configuration
1, 2, 3
V+/I
Out
4, 5, 6
V-/I
In
Unit
+NZM-XMC-1AO
Current output
max. load
O
470
Voltage output
internal impedance
O
330
Isolation
V
rms
2750
Connection
Phoenix Contact
MC 1.5/6-ST-3.5 or
similar
h
The analog expansion card is fitted in slot 1.
MODBUS
Description
Area
20000-1
Lower limit value
Depend on parameter
20002-3
Upper limit value
Depend on parameter
20004H
Output mode
0 - 0 - 20 mA,
1- 4 - 20 mA,
2 - 0 - 10 mA,
20004L
Parameters
0 - 48
Analog expansion card
49
05/10 MN01219001Z-EN
Changes are fully applied after NZM-XMC reset.
Example:
User wants an analog current output, 0-20mA, linked to
“Voltage phase 1” parameter.
The user also wants an output current of 0 mA at U = 100 V
and an output level of 20 mA at U = 300 V.
The analog expansion card is fitted in slot 1.
20000-1 = 100000
20002-3 = 300000
20004H = 0 - 20004L = 1
Hexadecimal: 20000:0x0001; 20001:0x86A0;
20002:0x0004; 20003:0x93E0; 20004:0x0001
h
The analog expansion card is fitted in slot 2.
MODBUS
Description
Area
20010-1
Lower limit value
Depend on parameter
20012-3
Upper limit value
Depend on parameter
20014H
Output mode
0 - 0 - 20 mA,
1- 4 - 20 mA,
2 - 0 - 10 mA,
20014L
Parameters
0 - 48
h
The voltage parameter is given in mV.
Expansion cards
50
05/10 MN01219001Z-EN
Digital expansion card
Provides the circuit-breaker with four isolated digital
connections (input or output) with an operating voltage of
up to 48 V DC.
I/O function is configurable via MODBUS registers.
Figure 22: +NZM-XMC-4DI-4DO, 4 isolated digital connections
Table 11: Pin assignment
Connection
1 2 3 4 5 6
+NZM-XMC-4DI-4DO
NZM...-XMC-MB
PIN
Configuration
1
Power supply
2
E/A 1
3
E/A 2
4
E/A 3
5
E/A 4
6
GND
No external supply
Logic level: +5 V - 0 V
External supply V DC
Logic level: V - 0 V
1
2
5
4
3
6
GND
NC
Input: 48 to 0 V
Output: 5 to 0 V
1
2
5
4
3
6
GND
External V DC
Input: 48 to 0 V
Output: V DC to 0 V
Digital expansion card
51
05/10 MN01219001Z-EN
Technical data
Configuration
Changes are fully applied after NZM-XMC reset.
Unit
+NZM-XMC-4DI-4DO
Max. input/output voltage
V
48
Output high voltage
(no external voltage supplied)
V
5
Input impedance
MO
1
Output impedance
O
100
Isolation
V
rms
2750
Connection
Phoenix Contact
MC 1.5/6-ST-3.5 or similar
h
The digital expansion card is fitted in slot 1.
MODBUS
Description
Area
20000
Configuration
Slot 1
0 - … all digital connections as
outputs
1 - … all digital connections as
inputs
h
The digital expansion card is fitted in slot 2.
MODBUS
Description
Area
20010
Configuration
Slot 2
0 - … all digital connections as
outputs
1 - … all digital connections as
inputs
52
05/10 MN01219001Z-EN
53
05/10 MN01219001Z-EN
Appendix
Technical data
Unit
NZM…-XMC-S0
NZM…-XMC-MB
General
Dimensions
mm
209 x 91 x 132 (3 pole)
251 x 91 x 132 (4 pole)
209 x 91 x 132 (3 pole)
251 x 91 x 132 (4 pole)
Weight
g
850 (3 pole)
975 (4 pole)
850 (3 pole)
975 (4 pole)
Material
UL94-V0
UL94-V0
Power supply
Voltage
V DC
18 - 36
18 - 36
Maximum current
mA
200
200
Conductors
Phoenix Contact
GMVSTBR 2.5-2-ST-7.62
Phoenix Contact
GMVSTBR 2.5-2-ST-7.62
Voltage measurement
Rated operational voltage
V AC
690
690
Maximum surge voltage
8/20 ms
kV
8
8
Maximum voltage
V AC
800
800
Surge impedance
(impedance)
kO
1
1
Frequency
Hz
45 - 65
45 - 65
Accuracy
0.4 % measured value +
0.05 % FS (full scale)
0.4 % measured value +
0.05 % FS (full scale)
Category: EN 61010
CAT IV-600 V
CAT IV-600 V
Appendix
54
05/10 MN01219001Z-EN
Current measurement
Rated operational current
A AC
300 (300 A version)
500 (500 A version)
300
Maximum current
A AC
350 (300 A version)
740 (500 A version)
30
Maximum current impulse 1s
kA
30
30
Frequency Hz
45 - 200
45 - 200
Category EN61010
CAT IV-600 V
CAT IV-600 V
Power monitoring
Maximum power (per phase)
kWh
-
280
Accuracy
-
0.95 % measurement +
0.05 % FS
Accuracy of active power
Class 1 (IEC 62053-21)
Class 1 (IEC 62053-21)
Accuracy reactive energy
-
Class 2 (IEC 62053-23)
Pulse output
Type
NPN-isolated transistor
NPN-isolated transistor
VCE max
V
80
80
VCE sat
V
0.4
0.4
I
c
max
mA
50
50
I
c
recommended
mA
10
10
Isolation
kV
3
3
Max. switching frequency
Hz
2
4
Pulse width
ms
120
20 (minimum)
Power pulse rate
Pulse/
kWh
15 (with 300 A version)
7 (with 500 A version)
Unit
NZM…-XMC-S0
NZM…-XMC-MB
Technical data
55
05/10 MN01219001Z-EN
Environmental specifications
Operating temperature
ºC
-15 - +65
-15 - +65
Storage temperature
ºC
-40 - +80
-40 - +80
Humidity (non-condensed)
%
5 - 95
5 - 95
Maximum operating height
m
2000
2000
IP protection class
IP20
IP20
Digital output
Part no.
-
-
Maximum voltage
V
-
350
Maximum current
mA
-
120
Isolation
kV
-
2.5
Digital input
Maximum voltage
V
-
50
V
IHmax
V
-
3
MODBUS output – RS485
Data rate
bit/s
-
9600, 19200, 38400,
56000, 57600
Stop bits
-
1, 2
Parity
-
none, even, uneven
Isolation
kV
-
3
MODBUS output – Display
DC
supply
voltage
V DC
-
5
Maximum current
m A
-
180
Unit
NZM…-XMC-S0
NZM…-XMC-MB
h
For 3 pole devices:
For all 3 pole devices the “neutral Voltage” must be
connected to the neutral terminal (pin 4 - 7).
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05/10 MN01219001Z-EN
05/10 MN01219001Z-EN
57
Index
Additional power supply ......................................18
Alarm ..................................................................43
Alarm messages ..................................................31
B
Baud rate ......................................................22, 28
Communication ...................................................28
Data bits .............................................................28
Device address ..............................................22, 28
Digital input ........................................................35
Digital outputs .....................................................35
Display ............................................................5, 37
Connect ........................................................19
LED indicators .....................................................13
Measurement modules ..........................................3
MODBUS register ................................................23
Mounting plate ......................................................9
P
Parameter
Electrical ......................................................25
Parity ...................................................................28
Password .............................................................29
Protocol ...............................................................28
Pushbutton actuators ..........................................37
Index
05/10 MN01219001Z-EN
58
Relay cards ..........................................................43
Reset ...................................................................35
S0 interface ...........................................................7
Serial number ......................................................22
Settings
General ........................................................30
Reset ............................................................35
Stop bits ..............................................................28
W
Wye network