23
Fault Codes
The 19MV and 19XR unit mount PF755TL drive communicates
with PIC6 using Modbus protocol. If the VFD goes into fault, the
actual VFD fault will be displayed on the VFD status screen. See
Fig. 33.
Fig. 33 — VFD Screen
The actual VFD Alarm Code will be displayed in the bottom left.
Be sure to collect this code along with the code the PIC6 displays
as the current alarm.
The 19XR PF755TL and free-standing drive does not have direct
communication with PIC6. Interface between drive and PIC6 is
via ISM (integrated starter module). Therefore CCW must be used
to find the actual VFD fault in case of VFD shutdown. The PIC6
controller will just display a generic starter fault like Alarm 416
ISM Fault — Starter Fault. For further troubleshooting the actual
VFD fault is required. See Fig. 34.
Refer to Rockwell document 750-RD102 for a complete set of
VFD alarms and fault code breakdown.
The codes are based on Port assignments:
Port 0: Embedded Ethernet and System Functions
Port 9: Application and Logic
Port 10: Primary Motor Side Inverter Control
Port 11: Secondary Motor Side Inverter Control
Port 12: Motor Side Inverter Power
Port 13: Line Side Converter Control
Port 14: Line Side Converter Power
See Tables 6 and 7.
Fig. 34 — VFD Alarm Code
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