Nc-Drv Initial Safe Comm Error; Safe Io Init. Process Timeout; Encoder Error; Nc-Drv Safe Communication Err - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
13 Smart Safety Observation Alarm (V)
V01

NC-DRV initial safe comm error

Details
The initial communication between NC unit and drive unit is incorrect. Displays the name of axis with error.
Remedy
Check if there is no contact failure or no cable fracture after NC/Drive power OFF.
NC unit or drive unit may be faulty. Contact our service center.
V01

Safe IO init. process timeout

Details
The safety I/O initialization process at power-up has not completed within the specified time.
The screen shows the unit No. and RIO system in error.
bit24-27: Unit No.
bit16-17: Detected system
Remedy
Safety I/O unit may be faulty. Exchange the safety I/O unit.
V02

Encoder error

Details
The feedback position received from drive unit is incorrect.
Displays the name of axis with error.
Remedy
Encoder may be faulty. Contact our service center.
V02

NC-DRV safe communication err

Details
The communication between NC unit and drive unit is incorrect.
Displays the name of axis with error.
Remedy
Check if there is no contact failure or no cable fracture after NC/Drive power OFF.
NC unit or drive unit may be faulty. Contact our service center.
V02 Excess movement during pwr OFF
Details
[Saved position at power shut OFF] and [restored position at power ON] are inconsistent in SLP/SCA encoder
diagnosis during power OFF.
Displays the name of axis with error.
Remedy
There are two causes of this alarm; one is "the axis being moved during power OFF" and the other is "the in-
correct restoring of the position at power ON".
When it is likely with the cause "the axis being moved during power OFF", the alarm can be cancelled by
turning ON the Safety reset signal while the Special safety alarm cancel signal is ON.
When it is likely with the cause "the incorrect restoring of the position at power ON", encoder may be faulty.
Contact our service center.
V03 Slave station comm. error 1
Details
The data received by the safety I/O unit is incorrect. The screen displays the unit No. and RIO system with an
error.
bit24-27: Unit No.
bit16-17: Detected system
Safety observation target axes are stopped, and all the DOs of the safety I/O unit concerned are turned OFF.
Remedy
NC unit or safety I/O unit may be faulty. Exchange the NC unit or safety I/O unit.
0007
0008
0001
0004
0005
0001
163
Axis name
Unit info
Axis name
Axis name
Axis name
Unit info
IB-1501279-H