User`s manual

Troubleshooting Troubleshooting
MELSEC System Q, Hardware 11 – 5
Errors that can be detected by the ERR.
terminal
* Excluding the Q00JCPU and Q00UJCPU (without ERR. terminal)
Power supply module
used on
Detected errors
Basic model QCPU *
High performance model
QCPU
Universal model QCPU*
Process CPU Redundant CPU
Main base unit Q33B
Q35B
Q38B
Q312B
Q38DB
Q312DB
 AC power not input
 Power supply module fuse blown
 CPU module stop error
 CPU RESET
Q32SB
Q33SB
Q35SB
 AC power not input
 Power supply module
fuse blown
 CPU module stop error
 CPU RESET
(Cannot be combined)
Q38RB
 Power supply module failure
 AC power not input
 Power supply module fuse blown
 CPU module stop error
 CPU RESET
Extension base
unit
Q63B
Q65B
Q68B
Q612B
Errors cannot be detected (always off)
(Cannot be added)
Q68RB
(two
power
supply
modules
used)
 Power supply module failure
 AC power not input
 Power supply module fuse blown
Tab. 11-1: Errors that can be detected by the ERR. terminal