Turning OFF the inverter's power supply clears the modified parameter settings when Pr. 342 = "1
(write only to RAM)". Therefore, the parameter values at next power-ON are the values last stored
The parameter setting written in RAM cannot be checked on the operation panel. (The values dis-
played on the operation panel are the ones stored in EEPROM.)
Operation selection at a communication error (Pr. 502, Pr. 779)
● For communication using RS-485 terminals or a communication option, operation at a commu-
nication error can be selected. The operation is active under the Network operation mode.
● 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).
● When a communication error is detected while communication with the RS-485 terminals is
performed, the alarm (LF) signal is output to an output terminal of the inverter.To use the LF signal,
set "98 (positive logic) or 198 (negative logic)" in any of Pr. 190 to Pr. 196 (output terminal function
selection) to assign the function to the output terminal.
(While communication is performed with a communication option, LF signal is output only when
"3" is set in Pr. 502.)
(When a communication
option is used)
Tab. 5-267: Stop mode selection
In communication by the communication option, E.OP1 is displayed.
Under position control, the operation is continued to the target position.
When the communication error is removed during deceleration, the motor re-accelerates.
Under position control, the motor does not re-accelerates even when the communication error is
removed during deceleration.
At fault occurrence
E. 1 after stop
(N) Operation via communication and its settings
At fault removal
5 - 607