A&D Device Net.Interface AD-4402 OP-21 Instruction Manual - page 18
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28
Page 16
AD-4402 OP-21
Type
No.
Cause and Treatment
0
Weighing value is out of zero band.
Display can not be zeroed by zero compensation.
1
Weighing value is out of tare condition.
Display can not be zeroed by tare operation.
Zero error
ZR.ERR
2
Weighing value is not stable.
Automatic zeroing or automatic tare can not performed at power on
1
Weighing value is out of range.
Alarm 1
ALARM 1
9
Emergency stop is executed.
Emergency stop is executed by external input.
1
A/D converter is positive over count.
Check the loadcell cable.
2
A/D converter is negative over count.
Check the loadcell cable.
Alarm 2
ALARM 2
4
RAM error.
Check the backup battery