MITSUBISHI ELECTRIC FR-S520E - Manual (Page 49)

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How to use the input signals (assigned terminals
RL, RM, RH, STR)
1
WI
RING
1.5.6 External thermal relay input:
Pr. 60 to Pr. 63 setting
"7"
1.5.7 Jog operation (JOG signal):
Pr. 60 to Pr. 63 setting
"9"
(1) Jog operation using external signals
Jog operation can be started/stopped by shorting the jog mode select terminals JOG-
SD and shorting/opening the start signal terminals STF or STR-SD. The jog frequency
and jog acceleration/deceleration time are set in Pr. 15 (factory setting 5Hz, variable
between 0 and 120Hz) and Pr. 16 (factory setting 0.5s, variable between 0 and 999s),
respectively, and their settings can be changed from the operation panel or parameter
unit.
The JOG signal has precedence over the multi-speed signal. (External)
When the external thermal relay or thermal relay built in
the motor is actuated, the inverter output is shut off and
an alarm signal is given to keep the motor stopped to
protect the motor from overheat. Even if the thermal
relay contact resets, the motor cannot be restarted
unless the reset terminals RES-SD are shorted for more
than 0.1s and then opened or a power-on reset is made.
The function may therefore be used as an external
emergency stop signal input.
Inverter
U
V
W
OH
Thermal relay
Motor
IM
SD
Output frequency
Forward
rotation
Jog frequency Pr. 15
DC injection brake
Reverse
rotation
Forward rotation
Across STF-
Reverse rotation
Across STR-
Time
0.5Hz
3Hz
ON
ON
ON
Across JOG -SD
SD
SD