Service manual
Electrical Service Manual V4.0
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CURTIS 1227 CONTROLLER
CURTIS 1227 CONTROLLER
The Curtis 1227 controller replaced the Curtis 1213 controller in
the models 38, 40, 48, 3700 & 4700. The 1227 is more modern
control with more adjustable parameters. The controllers are fully
programmable with the use of a Curtis 1307 or 1311 hand pro-
grammer or a Curtis PC Programmer with special interface cord.
FEATURES
- Infinitely variable forward and reverse drive speed and
regenerative braking control
- Full bridge power MOSFET design
- No reversing relay required
- Fully programmable with hand held programmer
- Status LED on the controller
- Fully compliant with all applicable international standards and TUV requirements
- Current limiting in both driving and braking modes
- High pedal disable function on power up to eliminate run aways
- Key off/Power failure deceleration brings machine to a controlled stop
- Fault detection system monitors main contactor, output stage and throttle demand
- ISO 7176 Compliant throttle fault detection
SPECIFICATIONS
Operating voltage: 36 Volts
Controller Capacity: 200 amps
Outputs: Traction Drive
Auxiliary
SYSTEM PARTS
Main Contactor - We call this the #1 relay. We use a canister type single pole single throw
contactor.
Parking Brake Relay - We call this the #2 relay. We use a canister type single pole single
throw contactor.