D E S C R I P T I O N

Curtis Models 1204M and 1205M provide fully programmable
control of DC series motors performing on-vehicle traction or
pump duties. These microprocessor based MOSFET controllers
add flexibility and versatility to the time-proven Curtis PMC series
motor controller family.

A P P L I C A T I O N

Primarily designed for battery-powered vehicle applications using
either electric or hydrostatic traction. These include industrial
trucks, personnel carriers, mobile elevating work platforms and
golf and utility vehicles.

1205M

1204M

M O D E L 1 2 0 4 M / 1 2 0 5 M

P r o g r a m m a b l e S e r i e S m o t o r C o n t r o l l e r S

www.curtisinstruments.com

F E A T u R E S

Smooth, Silent Control

•

Pulse Width Modulation control with programmable speed,

acceleration rate and current limit.

•

15kHz PWM frequency for near-silent operation.

Programmable and Flexible

•

Easily programmed via Curtis hand-held tools or Curtis PC

programming software.

•

External Status LED output for easy system troubleshooting

via flash codes.

•

Fully programmable analog throttle input for precise speed

control with a variety of signal sources.

•

Programmable undervoltage cutback caters for different

battery types.

•

Boost function to help clear obstacles, climb ramps, etc.

•

Programmable, variable or fixed plug braking modes.

•

Plug braking diode internal to controller.

•

Models available without A2 busbar for applications such

as pump control that do not require plug braking.

Robust Safety and Reliability

•

Redundant hardware watchdog timers.

•

Motor and MOSFET short-circuit protection functions.

•

Failsafe throttle fault detection requires keyswitch to be cycled

before drive can resume, protecting against intermittent faults.

•

Programmable High Pedal Disable function prevents controller

operation if throttle is applied before key is turned on.

•

Contactor fault detection: controller shuts down safely if the

main contactor opens.

•

Contactor protection functions minimize high current arcing to

prevent contact pitting and thus prevent contactor weld failures.

•

Rugged anodized aluminum extrusion housing meets IP65

environmental sealing standard for use in harsh environments.

•

Thermal cutback above 80°C and automatic shutdown at

120°C provide protection to motor and controller.

•

PWM frequency shifts from 15kHz to 1kHz if the controller

temperature exceeds 105°C, providing audible warning of

thermal shutdown.

•

Undervoltage cutback and shutdown functions protect

against low battery voltage, including low voltage caused

by external loads.

Nominal Battery

Voltage (VDC)

36/48

36/48

36/48

36/48

36/48

60/72

60/72

5 Seconds

Boost Current

(A)

350

350

375

600

600

500

500

1 Hour Rating

(A)

125

125

140

175

175

150

150

Plug Braking

Y

N

Y

Y

N

Y

N

Model

1204M-5201

1204M-5202

1204M-5301

1205M-5601

1205M-5602

1205M-6B401

1205M-6B402

Current Limit

(A)

275/2min

(125-275)

275/2min

(125-275)

325/2min

(175-325)

500/1min

(250-500)

500/1min

(250-500)

400/1min

(150-400)

400/1min

(150-400)

M O D E L 1 2 0 4 M / 1 2 0 5 M

M O D E L C H A R T

Meets or complies with relevant US and International Regulations
EMC: Designed to the requirements of EN12895
IP65
Regulatory compliance of the complete vehicle system with the controller installed is the responsibility of the vehicle OEM.

D I M E N S I O N S m m

16

133.3

7.2 dia.

8.5 dia.

6.35,

3 plcs

1204M:

22 x 19 x 3

1205M:

25 x 19 x 3

1204M:

174

1205M:

199

1204M:

18.8

1205M:

31.3

146

11

4

130.

3

77

5

T Y P I C A L W I R I N G - T R A C T I O N

A2

M–

B–

B+

J1

J2

J3

J4

STATUS

LED

MOTO R

FIELD

A2

A1

5k Ω THROTTLE

PRECHARGE RESISTOR

(250 Ω , 5 W)

MOTOR

ARMATURE

FORWARD

REVERSE

MAIN

F

R

MAIN

KEYSWITCH

INTERLOCKS

POLARITY

PROTECTION

DIODE

CONTROL WIRING

FUSE

POWER WIRING

FUSE

S2

S1

F

R

F

R

+

–

PEDAL

MICROSWITCH

HANDHELD

PROGRAMMER

TO J4

M O D E L 1 2 0 4 M / 1 2 0 5 M

M O D E L 1 2 0 4 M / 1 2 0 5 M

T Y P I C A L W I R I N G - P u M P

M–

B–

B+

J1

J2

J3

J4

STATUS

LED

MOTO R

FIELD

A2

5k Ω THROTTLE

PRECHARGE RESISTOR

(250 Ω , 5 W)

MOTOR

ARMATURE

MAIN

MAIN

KEYSWITCH

INTERLOCKS

POLARITY

PROTECTION

DIODE

CONTROL WIRING

FUSE

POWER WIRING

FUSE

S1

+

–

ENABLE

A1

S2

HANDHELD

PROGRAMMER

TO J4

Specifications subject to change without notice

50180 REV B 3/10

©2010 Curtis Instruments, Inc.

is a trademark of Curtis Instruments, Inc.

W A R R A N T Y

Two year limited warranty from time of delivery.