Curtis Instruments AC F4-A User Manual

7 — DIAGNOSTICS AND TROUBLESHOOTING
pg. 159
Return to TOC Curtis AC F4-A Motor Controller – August 2020
In this example, Device ID = 26h (38d). Note the “little-endian” byte-ordering for the error code
(ash code) and fault record object index. e Data Byte 5, 01, indicates the rst fault type for
the Main Contactor Did Not Close fault. In this case, the contactor was “open” during initial closure
operation (e.g., either the Driver3 (pin 5) or the KSI Coil Return (pin 2) were disconnected, or the
contactor is defective). e 11-bit identier assembles as: A6h = 00 01 | 0 1 0 0 1 1 0, where the top
4 bits are the Sync-Error Function code, and the bottom 7 bits are the Node ID, as explained above.
2b. CANbus Emergency Message: Main_Contactor_Did_Not_Close_Active | 0x2221 0x01
Main Contactor Did Not Close fault. Flash code 3-9 (LEDs: x3 x9)
Identier DLC Data
0A6 8 39 FF 01 21 22 02 00 00
In this example, Device ID = 26h (38d). Note the “little-endian” byte-ordering for the error code
(ash code) and fault record object index. e Data Byte 5, 02, indicates the second fault type for
the Main Contactor Did Not Close fault. In this case, the contactor “opened” during operation (e.g.,
either the Driver3 (pin 5) or the KSI Coil Return (pin 2) were disconnected while operational). e
11-bit identier assembles as: A6h = 00 01 | 0 1 0 0 1 1 0, where the top 4 bits are the Sync-Error
Function code, and the bottom 7 bits are the Node ID, as explained above.
3a. CANbus Emergency Message: Severe_B_Plus_Undervoltage_Active | 0x2120 0x01
Severe B+ Undervoltage. Flash code 1-7 (LEDs: x1 x7)
Identier DLC Data
0A6 8 17 FF 01 20 21 01 00 00
3b. CANbus Emergency Message: Severe_KSI_Undervoltage_Active | 0x2122 0x01
Severe KSI Undervoltage. Flash code 1-7 (LEDs: x1 x7)
Identier DLC Data
0A6 8 17 FF 01 22 21 01 00 00
In examples 3a and 3b, both faults share the same LED ash code. ey are distinguished in Data
Bytes 3 & 4 – Fault Record Object Index.
e OEM-dened user faults are also accessible in a CANbus emergency message. Error category
= 0x62XX (for UserFault1-32 are OEM/Factory dened and implemented in VCL. For example:
e User_1_fault is OEM denable and is implemented the same as the above OS faults.
CANbus Emergency Message: User_1_Fault_Active 0x2710 0x01 0x00
Flash code 5-1 (LEDs x5 x1)
Identier DLC Data
0A6 8 51 62 01 10 27 01 00 00

Curtis Instruments AC F4-A Specifications

General

Brand	Curtis Instruments
Model	AC F4-A
Category	Controller
Language	English