Specifications

Curtis PMC 1223/33, 1225/35, 1227/37 Manual
A-8
APPENDIX A: GLOSSARY
MultiMode™
The MultiMode™ feature of these controllers allows the vehicle to be operated
with two distinct sets of characteristics. The two modes can be programmed to be
suitable for operation under different conditions, such as slow precise indoor
maneuvering in Mode 1 and faster, long distance, outdoor travel in Mode 2. The
following parameters can be set independently in the two modes:
— main current limit
— maximum speed
— minimum speed
— acceleration rate
— deceleration rate
— reverse deceleration rate
— IR speed compensation.
OEM (= Original Equipment Manufacturer)
On/Off switch input
A control input configured for an on/off switch is in a specific state depending on
its applied voltage. For example, if the mode input is configured for an on/off
switch, turning the switch on (applying B+) puts the controller into Mode 2. The
controller will remain in Mode 2 as long as the switch is On and is therefore
applying B+ to the mode input. When the mode switch is turned off (and B- is
applied to the mode input) the controller will transition to Mode 1 operation.
SPST toggle switches are usually used with on/off control inputs.
Overtemperature (see Thermal protection)
Overvoltage protection
The overvoltage protection feature shuts down the regenerative current path to the
controller if the voltage exceeds the factory-set limit. Controller operation resumes
when the voltage is brought within the acceptable range. The cutoff voltage and
re-enable voltage are percentages of the battery voltage, and are set at the factory.
The controller can be configured to short the motor (required to meet TÜV
regulations) or to let it coast in the event of overvoltage—see Section 4, page 46.
Power saver
The power saver feature minimizes battery power drain if the vehicle is left on but
is not being used. The main contactor is released after 25 seconds if no throttle