AND Device Net.Interface AD-4402 OP-21 Instruction Manual page 18

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