Curtis 1239E User Manual

Return to TOC Curtis 1239E-1269E Manual, os 37.0 RevA – May 2021
11 — DIAGNOSTICS AND TROUBLESHOOTING
pg. 139
Whenever a fault is encountered and no wiring or vehicle fault can be found, shut o KSI and turn it
back on to see if the fault clears. If it does not, shut o KSI and remove the 35-pin connector. Check
the connector for corrosion or damage, clean it if necessary, and re-insert it.
e fault actions (eect of fault) in Table 6 use the same bit-structure as the User_Fault_Action_xx
listed in the OEM-dened User Faults on page 120. e variable System_Action (available in WinVCL
Monitor or TACT) returns the decimal number corresponding to the active fault action bit(s). e
Dual Drive fault actions, Bits 12–15, are listed in the supplemental Dual Drive Operation manual.
System_Action Bit Action
No dened System_Action Effect of fault as noted in Table 6
Bit0 = ShutdownMotor Disable the motor.
Bit1 = ShutdownMainContactor Shut down the main contactor (only if Main Enable = On)
Bit2 = ShutdownEMBrake Shut down the EM brake (only if EM Brake Disable Upon Fault = On).
Bit3 = ShutdownThrottle Set the Throttle_Command = 0%.
Bit4 = ShutdownInterlock Set the Interlock_State = Off.
Bit5 = ShutdownDriverl Shut down Driver1.
Bit6 = ShutdownDriver2 Shut down Driver2.
Bit7 = ShutdownDriver3 Shut down Driver3.
Bit8 = ShutdownDriver4 Shut down Driver4.
Bit9 = ShutdownPD Shut down Proportional Driver
Bit10 = FullBrake Set the Brake_Command = 100%.
Bit11 = [reserved] N/A (for 1232-1236E/SE, 1238E, 1239E, 1269E controllers)
Bit12 = TrimDisable Disable Dual Drive trim calculation.
Bit13 = SevereDual
For Dual Drive system, one controller has a severe fault but the main
contactor must stay closed so the other controller can continue to operate.
Bit14 = ShutdownSteer Steer angle = 0° (DD applicable).
Bit15 = LOSDual
For Dual Drive system, set the max speed to Dual_LOS_Max_Speed
parameter for operation in Limited Operating Strategy.
Example:
HPD/Sequencing Fault, Flash Code 47.
Effect of fault = Shutdown Throttle.
System_Action = 8 (equates to Bit3 set: 0000 0000 0000 1000).
Changes to the fault handler and main bridge operation with PMAC motors
In non-1239E models the controller will activate the main power bridge automatically when the
overvoltage point is reached, the controller will then command zero torque producing current, and
command only enough negative ux producing current to keep the capacitor voltage below the
overvoltage threshold. is will occur even if there is no power applied to KSI.

Curtis 1239E Specifications

General

Brand	Curtis
Model	1239E
Category	Controller
Language	English