Control Circuit Specifications; Control Circuit Terminal - Mitsubishi Electric FR-E720-008 Instruction Manual

Control circuit specifications

2.3 Control circuit specifications
2.3.1

Control circuit terminal

indicates that terminal functions can be selected using Pr. 178 to Pr. 184, Pr. 190 to Pr. 192 (I/O terminal function
selection). (Refer to page 138).
(1) Input signal
Terminal
Type Terminal Name
Symbol
STF Forward rotation start
STR Reverse rotation start
RH,
RM, Multi-speed selection
RL
MRS * Output stop
RES Reset
Contact input common
(sink) (initial setting)
External transistor
SD
common (source)
24VDC power supply
common
External transistor
common (sink)
(initial setting)
PC Contact input common
(source)
24VDC power supply
Safety stop input terminal
common *
22
Description
Turn ON the STF signal to
When the STF and STR
start forward rotation and
turn it OFF to stop. signals are turned ON
Turn ON the STR signal to simultaneously, the stop
start reverse rotation and
command is given.
turn it OFF to stop.
Multi-speed can be selected according to the
combination of RH, RM and RL signals.
Turn ON the MRS signal (20ms or more) to stop the
inverter output.
Use to shut off the inverter output when stopping the
motor by electromagnetic brake.
* Terminal MRS is only available for the standard control
circuit terminal model.
Used to reset fault output provided when fault occurs.
Turn ON the RES signal for more than 0.1s, then turn
it OFF.
Factory setting is for reset always. By setting Pr. 75,
reset can be set to enabled only at fault occurrence.
Recover about 1s after reset is cancelled.
Common terminal for contact input terminal (sink
logic).
When connecting the transistor output (open collector
output), such as a programmable controller, when
source logic is selected, connect the external power
supply common for transistor output to this terminal to
prevent a malfunction caused by undesirable
currents.
Common output terminal for 24VDC 0.1A power
supply (PC terminal).
Isolated from terminals 5 and SE.
When connecting the transistor output (open collector
output), such as a programmable controller, when
sink logic is selected, connect the external power
supply common for transistor output to this terminal to
prevent a malfunction caused by undesirable
currents.
Common terminal for contact input terminal (source
logic).
Can be used as 24VDC 0.1A power supply.
Common terminal for safety stop input terminals S1
and S2.
* Terminal S1 and S2 are only available for the safety
stop function model.
Rated Specifications
Input resistance 4.7kΩ
Voltage when contacts are
open
21 to 26VDC
When contacts are short-
circuited
4 to 6mADC
—
Power supply voltage range
22 to 26.5VDC
permissible load current
100mA
—
Refer to
Page
142
101
140
183
—
25
31