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Communication operation and setting
⋅ Select the stop operation at the retry count excess (Pr. 335, only with Mitsubishi inverter protocol) or at a signal loss
detection (Pr. 336, Pr. 539).
⋅ Operation at an error
Pr. 502 setting
0
(Initial setting)
1
2
3
⋅ Operation after the error is removed
Pr. 502 setting
0
(Initial setting)
1
2
3
* E.OP1 appears when using a communication option.
Pr. 502 ="0 (initial setting)"
Fault recognition
OFF
Communication
fault
Fault display
(E.SER *1)
OFF
Fault output
(ALM)
Pr. 502 ="2"
Fault recognition
Communication
OFF
fault
Fault display
(E.SER *1)
OFF
Fault output
(ALM)
*1
E.OP1 appears when using communication through communication option.
*2
When a communication error is detected while Pr.502 = "3," the alarm (LF) is output to an output terminal of the inverter. To use the LF signal,
assign the function to an output terminal by setting "98 (positive logic) or 198 (negative logic)" in any of Pr.190 to Pr.196 (Output terminal function
selection).
........Specifications differ according to the date assembled. Refer to page 378 to check the SERIAL number.
232
Operation
Coasts to stop
Decelerates to stop
E.SER is lit after stop*
Operates at the
frequency set in Pr.779.
Operation
Stop status continues
Restarts
Operates normally
Fault removal
ON
Motor coasting
Display
ON
Fault removal
ON
OFF
Decelerates
to stop
Display
Indication
E.SER is lit*
Output after stop
Normal indication
Indication
E.SER continues*
Output continues
Normal indication
Normal indication
Pr. 502 ="1"
OFF
Communication
fault
Time
Fault display
(E.SER *1)
Fault output
(ALM)
Pr. 502 ="3"
Communication
fault
Time
Not displayed
Fault display
Fault output
(ALM)
Alarm output
(LF *2)
Fault output
Output
Not output
Not output
Fault output
Not output
Not output
Fault recognition
OFF
ON
Decelerates to stop
Display
OFF
Fault recognition
Fault removal
OFF
ON
Pr. 779 = "9999"
Pr.779
"9999"
(Runs at the frequency setting of Pr. 779 )
OFF
OFF
ON
Fault removal
OFF
Time
ON
OFF
Time
OFF
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