Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 278 / 608

Function assignment of external terminals Parameter
6 - 124
3-wire type (terminals STF, STR and STOP)
A three-wire type connection is shown below.
The start self-holding selection becomes valid when the STOP signal is turned on. In this case, the for-
ward/reverse rotation signal functions only as a start signal.
If the start signal (STF or STR) is turned on and then off, the start signal is held and makes a start. When
changing the direction of rotation, turn STR (STF) on once and then off. To stop the inverter, turning
off the STOP signal once decelerates it to a stop. When using the STOP signal, set "25" in Pr. 178 to
Pr. 184 to assign function.
Fig. 6-57:
3-wire type connection (Pr. 250 = 9999)
I001150E
Fig. 6-58:
3-wire type connection (Pr. 250 = 8888)
I001151E
NOTES When the JOG signal is turned on to enable jog operation, the STOP signal becomes invalid.
If the MRS signal is turned on to stop the output, the self-holding function is not cancelled.
Forward
rotation
Inverter
Output fr
equenc
y
For
w
ar
d
rota
tion
R
ev
erse
rota
tion
Time
ON
Reverse
rotation start
Stop
ON
ON
ON
ON
Start
Inverter
Output fr
equenc
y
Time
Forward/
reverse rotation
For
w
ar
d
rotation
Rev
erse
rota
tion
ON ON
ON
ON ON
Stop