89
4. Parameter description
Parameter
Note: 1. In normal or abnormal conditions, the reset can be executed by P.997.
2. There are two built-in program emulation thermally-accumulating relay, namely, ‘electronic thermal
relay’ and ‘IGBT module thermal relay’. Once reset occurs, the values of the two relay for ‘electronic
thermal relay’ and ‘IGBT module thermal relay’ will be set to zero.
3. In any modes except External mode or H2 mode, when P.75=1, the motor can be stopped by pressing
STOP
RESET
, then the inverter displays E0, and all the functions of the inverter are disabled. It can restart as follows:
(1). Terminate external STF/STR command (In programmed operation mode, there’s no need to terminate
the start signal. The inverter will continue to run at the section where it stopped after reset.)
(2). Press
STOP
RESET
for 1.0s.
4.33 Parameters Write Protection (P.77)
P.77 “Parameters write protection”
Parameter
Factory setting
Setting range
Remarks
77
0
0~2
---
<Setting>
• If P.77=0, when the motor stops, all parameters except for P.125 and P.188 can be written, and when
the motor runs, only P.4~P.6, P.24~P.27, P.54~P.56, P.77, P.131~P.138, P.142~P.149, P.190~P.199,
P.230, P.232, P.288 and P.290 can be written.
• If P.77=1, when the motor runs, the parameter-writing is forbidden except P.77. When the motor
stops, only P.77 and P.79 can be written.
• If P.77=2, when motor stops, all parameters except for P.125 and P.188 can be written, and when
motor runs, only P.22, P.72, P. 78, P.79, P.125, P.155 and P.188 can not be written.
4.34 Forward/reverse Rotation Prevention Selection (P.78)
P.78 “Forward/reverse rotation prevention selection ”
Parameter
Factory
setting
Setting
range
Remarks
78
0
0~2
0
Forward rotation and reverse rotation are both permitted.
1
Reverse rotation is prohibited (Press
REV
, the motor will stop).
2
Forward rotation is prohibited (Press
FWD
, the motor will stop).
