8 LCD Operator Option Fault Diagnostics
36
YASKAWA
TOBP C730600 29C YASKAWA AC Drive-Option LCD Operator Installation Manual
CPF01
COM-ERR(OP&INV)
<1>
LCD Operator Option Communication Error 2
Occurs if the drive does not respond to the LCD Operator Option
for over 2 seconds.
Cause
Possible Solution
Connector on the LCD Operator Option cable is
loose or damaged.
Remove the LCD Operator Option and then reconnect it again.
Problem with the LCD Operator Option.
Replace the LCD Operator Option.
Problem with the control circuit in the drive.
• Cycle power to the drive.
• Replace the drive.
LCD Operator
LED Operator
Description
oPr
Oper Disconnect
LCD Operator Option Connection Fault
oPr
Data should appear on the LED operator. By reconnecting the
LCD operator to the drive, data should also appear on the LCD
Operator display.
An oPr fault will occur if all of the following conditions are true:
Output is interrupted when the LCD Operator Option is
disconnected (o2-06 = 1).
The run command is assigned to the LCD Operator Option (b1-
02/b1-16= 0 and LOCAL is selected).
Cause
Possible Solution
LCD Operator Option is not properly connected to
the drive.
• Check the connection between the LCD Operator Option and
the drive.
• Replace the cable if damaged.
• Turn off the drive input power and disconnect the LCD
Operator Option. Reconnect the LCD Operator Option and
reapply drive input power.
<1> Display will vary depending on operation status.
LCD Operator
LED Operator
Description
