Mitsubishi Electric MELSEC Q Series Programming Manual page 520

APPENDICES
Table 1.9 Positioning control error (1100 to 1199) list (Continued)
Control mode
Error
code
1151
1152
1153
Error cause
• Q172DEX or encoder
hardware error.
• Disconnected encoder cable.
• A synchronous encoder set
in the system setting differs
from a synchronous encoder
actually connected.
• No battery or disconnected
battery at Q172DEX.
• Low voltage at Q172DEX.
• No battery or disconnected
battery at Q172DEX.
APP - 29
Error
Corrective action
processing
• Check (replace) the Q172DEX
Immediate
or encoder.
input stop
• Check the encoder cable.
Input from • Set a synchronous encoder
synchronous actually connected in the
encoder does system setting.
not accept.
• Replace the battery and turn
Immediate ON the Multiple CPU system
input stop power supply a few minutes
later.
• Replace the battery.
Operation
• Replace the battery or check
continues.
(replace) the Q172DEX.