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Curtis PMC 1223/33, 1225/35, 1227/37 Manual

controller responds as if the speed limit pot is at its minimum speed position) until

the wiper wiring is repaired. No error code is given, either in the Diagnostics

Menu of the 1307 programmer or by the Status LED. However, this fault can be

veriﬁed by selecting the Test Menu and observing the speed limit pot value as the

pot position is changed. If the speed limit pot value does not change as the pot

is rotated through its range, a wiring problem may exist and the speed limit pot

wiring should be checked. If a speed limit pot will never be used in the application,

this fault check should be disabled at the factory.

OEM speciﬁes ➤ Enable: Yes or No Default setting ➤ Enabled

MAIN CONTACTOR FAULT CHECK

The main contactor fault function checks for proper operation of the main

contactor and the controller’s contractor coil driver. If a welded contactor,

missing or shorted contactor coil, or failed contactor coil driver is detected, the

controller will inhibit output to the motor and flash the Hardware Failsafe 3 error

code (3,3) via the Status LED. In applications for which these fault checks are

undesirable and not required, the main contactor fault function can be disabled

at the factory. However, it should be noted that this function is required to meet

TÜV regulations.

OEM speciﬁes ➤ Enable: Yes or No Default setting ➤ Enabled

OVERVOLTAGE

Overvoltage can occur if the battery pack disconnects or the power fuse opens

during regen braking. Controller operation resumes when the voltage is brought

under the overvoltage limit. Overvoltage protection is designed to protect the

controller from damage during brief periods of overvoltage. (NOTE: Attempts to

operate the controller for extended periods in an overvoltage condition—such as

trying to drive the vehicle with the charger attached and charging—will damage

it.) The controller can be conﬁgured to short the motor or to let it coast in the

event of overvoltage. The recommended setting is for overvoltage to short the

motor, and this conﬁguration is required to meet TÜV regulations.

OEM speciﬁes ➤ Short or Coast Default setting ➤ Short

EMERGENCY REVERSE CHECK (123X models only)

This parameter is applicable only when the Program 2 driver is conﬁgured for

emergency reverse. The emergency reverse check function deﬁnes how the

controller reacts to a fault in the emergency reverse wiring. If conﬁgured as

4 — OEM-SPECIFIED, FACTORY-SET PARAMETERS

Fault Parameters

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Curtis 2000 Spécifications Page 53