Power Shutoff
Mitsubishi Electric · MELSEC iQ-R I/O Module
What does 1000H mean?
This error code indicates that a momentary power failure has occurred in the remote head module. If the transmission interval monitoring time for the master station or the I/O module with diagnostic functions is set too low, safety communications may stop as a result of such power fluctuations.
Common Causes
- Momentary power failure in the remote head module.
- Value of 'Transmission interval monitoring time' for the master station is smaller than required for momentary power failure precautions.
- Value of 'Transmission interval monitoring time' for the I/O module with diagnostic functions is smaller than required for momentary power failure precautions.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Implement appropriate measures against momentary power failure (Refer to MELSEC iQ-R Module Configuration Manual).
- 2
Check 'Transmission interval monitoring time' of the I/O module with diagnostic functions (Refer to Page 185 Basic Settings).
- 3
Check 'Sending Interval Monitoring Time' of the master station (Refer to MELSEC iQ-R CC-Link IE Field Network User's Manual (Application)).