Applicable Systems
MELSEC FX3U
MELSEC FX5U
FR-A800
FR-A700
MR-J4
iQ-R Motion Controller (R32MTCPU/R16MTCPU)
Symptoms
Output current detection value anomaly.
Possible Causes
- Current sensor fault
- Measurement circuit error
- Signal interference
Troubleshooting Steps
- Step 1: Check current sensor output
Signal present and correct - Step 2: Verify measurement circuit
Circuit intact - Step 3: Eliminate EMI
No signal interference
How to Reset
Reset via parameter unit after current detection repair.
Source: Mitsubishi FR-A800 Instruction Manual, Mitsubishi Electric
Category: PLC & VFD