Control Circuit; Details On The Control Circuit Terminals (Standard Model) - Mitsubishi Electric 800 Series Instruction Manual

2.6

Control circuit

2.6.1 Details on the control circuit terminals (Standard
model)
 Input signal
Terminal
Type Terminal name
symbol
*1
Forward rotation start
STF
*1
Reverse rotation start
STR
RH
RM
Multi-speed selection
*1
RL
*1
Output stop
MRS
*1
Reset
RES
Contact input
common (sink)
External transistor
SD common (source)
24 VDC power supply
common
External transistor
common (sink)
Safety stop input
PC
terminal common
Contact input
common (source)
24 VDC power supply Can be used as a 24 VDC 0.1 A power supply.
44
2. Installation and Wiring
2.6 Control circuit
Terminal function description
Turn ON the STF signal to start
forward rotation and turn it OFF to
stop.
Turn ON the STR signal to start
reverse rotation and 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 (20 ms or more) to stop the inverter
output. Use this signal to shut off the inverter output when
stopping the motor with an electromagnetic brake.
Use this signal to reset a fault output provided when a
protective function is activated. Turn ON the RES signal for
0.1 seconds or longer, then turn it OFF.
In the initial setting, reset is always enabled. By setting
Pr.75, reset can be enabled only at an inverter fault
occurrence. The inverter recovers about 1 second after the
reset is released.
Common terminal for the contact input terminal (sink logic),
terminal FM.
Connect this terminal to the power supply common terminal
of a transistor output (open collector output) device, such as
a programmable controller, in the source logic to avoid
malfunction by undesirable current.
Common terminal for the 24 VDC power supply (terminal
PC).
Isolated from terminals 5 and SE.
Connect this terminal to the power supply common terminal
of a transistor output (open collector output) device, such as
a programmable controller, in the sink logic to avoid
malfunction by undesirable current.
Common terminal for safety stop input terminals
Common terminal for contact input terminal (source logic).
Rated specification
When the STF and
STR signals are turned
ON simultaneously, the
stop command is
given.
Input resistance: 4.7 kΩ,
voltage when contacts
are open: 21 to 26 VDC,
current when contacts are
short-circuited: 4 to 6
mADC
—
Power supply voltage
range:
22 to 26.5 VDC,
permissible load current:
100 mA
Refer
to
page
*2
*2
*2
*2
—
—