Rockwell Automation FlexPak 3000 Digital DC Drive Version 4.3 - Manual (Page 134)

13-2 FlexPak 3000 DC Drive Software Reference
F00002 TACHOMETER LOSS Tachometer or encoder feedback signal missing.
Possible causes:
• Tachometer or encoder coupling failure.
• Disconnected, loosely connected, or damaged tachometer or encoder
wires.
• Pulse encoder supply voltage low.
• Incorrect analog tachometer scaling.
• Incorrect pulse encoder configuration.
• Motor armature winding not connected or open circuit.
• Blown inverting fault (DC) fuse.
• Inverting fault breaker tripped.
• High inertia loads and high inductance armature circuits. To reduce
nuisance faults, increase the firing angle threshold (see section 13.2).
• Tachometer or encoder failure.
F00003 OVERSPEED Motor speed exceeded the 110% of TOP SPEED .
Possible causes:
• Incorrect tachometer or encoder scaling.
• Blown field supply fuse(s).
• Improper speed loop tuning.
•
PULSE TACH QUADRATURE set to ON for a non-regenerative drive.
• Incorrect pulse encoder wiring.
F00004 FIELD CURRENT LOSS Standard or enhanced field supplies: The field loss detection circuit does
not sense any field current flowing in the motor shunt field.
Field Current Regulator kit field supply: FIELD FEEDBACK (P.589) fell below
the FIELD LOSS THRESHOLD (P.512).
Possible causes:
• Motor field winding not connected or open circuit.
• Blown field supply fuse(s).
• Blown AC line fuse(s).
• Field supply failure.
• Disconnected, loosely connected, or damaged wiring harness.
• Field Current Regulator kit only: Improper field loop tuning.
Table 13.1 – Fault Codes (Continued)
Code OIM Display Description