Mitsubishi Electric MELSEC-Q Series - Page 505

APP - 14
APPENDICES
Table 1.4 Positioning control start error (100 to 199) list (Continued)
Error
code
Control mode
Error cause
Error
processing
Corrective action
Positioning Fixed-pitch feed Speed Speed-position switching Speed switching Constant-speed JOG Manual pulse generator Home position return Position follow-up control OSC Speed control with fixed
p
osition sto
p
Speed-torque control
120
• ZCT not set
The zero pass signal
(M2406+20n) turned off at
the re-travel at the home
position return for proximity
dog, count and limit switch
combined method or start in
the home position return for
data set method.
Home
position
return is not
completed
correctly.
• Execute the home position
return after the zero point
passed.
121
• When "Not execute servo
program" is selected in the
operation setting for
incompletion of home
position return, the home
position return request signal
(M2409+20n) turns on.
Positioning
control does
not start.
• Execute servo program after
home position return.
• In the system which enables
execution of servo program
even if the home position
return request signal
(M2409+20n) turns on, set
"Execute servo program" as
"operation setting for
incompletion of home position
return".
122
• Home position return is
started on the direct drive
motor when the absolute
position data of the encoder
has not been established.
• Turn the power supplies of the
system or servo amplifier from
OFF to ON after passing the
zero point of the motor by the
JOG operation, etc.
123
• When the home position is
on the proximity dog, the
scale home position signal
detection method home
position return was started
up again, at the home
position return complete
signal ON, after completion
of the home position return.
Home
position
return does
not start.
• When the home position is on
the proximity dog, continuous
home position returns of scale
home position signal detection
method are not supported.
• Execute JOG operation or
positioning to return before the
proximity dog ON, and execute
home position return.
124
• When using the scale home
position signal detection
method home position return
or the dogless home position
signal reference method
home position return
(operation A), the servo
parameter PC17 is other
than "Need to pass motor Z
phase after the power
supply is switched on".
• Set "Need to pass motor Z
phase after the power supply is
switched on" to the servo
parameter PC17.
When you change the servo
parameter PC17, please once
turn off the power supply of
servo amplifier and turn it on
again.