Terminal Specification Explanation - Mitsubishi Electric FR-A700 Manual

Terminal Specification Explanation

Terminal
Type
Symbol
R/L1, S/L2, T/L3 AC power input
U, V, W
R1/L11, S1/L21
P/+, PR
Main
circuit P/+, N/-
P/+, P1
PR, PX
STF
STR
STOP
RH, RM, RL
JOG
RT
MRS
RES
AU
CS
SD
PC
10E
10
2
4
1
5
23
Terminal Name
Connect to the commercial power supply.
Inverter output Connect a three-phase squirrel-cage motor.
Power supply for control Connected to the AC power supply terminals R/L1 and S/L2. To retain alarm display and
circuit alarm output, apply external power to this terminal.
Remove the jumper from terminals PR-PX (7.5K or less) and connect an optional brake
Brake resistor
resistor (FR-ABR) across terminals P/+-PR. The PR terminal is provided for the 22K or
connection
less.
Connect the brake unit (FR-BU and BU, MT-BU5), power regeneration common
Brake unit connection converter (FR-CV) or regeneration common converter (MT-RC) and high power factor
converter (FR-HC, MT-HC).
For the 55K or less, remove the jumper across terminals P/+-P1 and connect a DC
DC reactor connection
reactor. (For the 75K or more, a DC reactor is supplied as standard.)
Built-in brake circuit When the jumper is connected across terminals PX-PR (initial status), the built-in brake
connection circuit is valid. The PX terminal is provided for the 7.5K or less.
Earth (Ground) For earthing (grounding) the inverter chassis. Must be earthed (grounded).
Turn on the STF signal to start forward rotation and turn it off
Forward rotation start
to stop.
Turn on the STR signal to start reverse rotation and turn it off
Reverse rotation start
to stop.
Start self-holding
Turn on the STOP signal to self-hold the start signal.
selection
Multi-speed selection Multi-speed can be selected according to the combination of RH, RM and RL signals.
Turn on the JOG signal to select Jog operation (initial setting) and turn on the start
Jog mode selection
signal (STF or STR) to start Jog operation.
JOG terminal can be used as pulse train input terminal. To use as pulse train input
Pulse train input
terminal, the Pr.291 setting needs to be changed. (maximum input pulse: 100kpulses/s)
Turn on the RT signal to select second function selection
Second function
When the second function such as "Second torque boost" and "Second V/F (base
selection
frequency)" are set, turning on the RT signal selects these functions.
Turn on the MRS signal (20ms or more) to stop the inverter output.
Output stop
Use to shut off the inverter output when stopping the motor by electromagnetic brake.
Used to reset alarm output provided when protective function is activated. Turn on the RES
Reset
signal for more than 0.1s, then turn it off. Recover about 1s after reset is cancelled.
Terminal 4 input Terminal 4 is made valid only when the AU signal is turned on.
selection Turning the AU signal on makes terminal 2 invalid.
AU terminal is used as PTC input terminal (thermal protection of the motor). When using
PTC input
it as PTC input terminal, set the AU/PTC switch to PTC.
Selection of automatic
When the CS signal is left on, the inverter restarts automatically at power restoration.
restart after
Note that restart setting is necessary for this operation. In the initial setting, a restart is
instantaneous power
disabled.
failure
Common terminal for contact input terminal (sink logic) and terminal FM. Common
Contact input common
output terminal for 24VDC 0.1A power supply (PC terminal). Isolated from terminals 5
(sink)
and SE.
External transistor When connecting the transistor output (open collector output), such as a programmable
common, controller (PLC), when sink logic is selected, connect the external power supply
24VDC power supply, common for transistor output to this terminal to prevent a malfunction caused by
contact input common undesirable currents. Can be used as 24VDC 0.1A power supply. When source logic
(source) has been selected, this terminal serves as a contact input common.
When connecting a frequency setting potentiometer at an
Frequency setting initial status, connect it to terminal 10.
power supply Change the input specifications of terminal 2 when
connecting it to terminal 10E.
Inputting 0 to 5VDC (or 0 to 10V, 4 to 20mA) provides the maximum output frequency at
5V (10V, 20mA) and makes input and output proportional. Use Pr.73 to switch from
among input 0 to 5VDC (initial setting), 0 to 10VDC, and 4 to 20mA.
Frequency setting
Voltage input: Input resistance 10kΩ ±1kΩ
(voltage)
Current input: Input resistance 250Ω ±5Ω (When power is ON)
Inputting 4 to 20mADC (or 0 to 5V, 0 to 10V) provides the maximum output frequency at
20mA and makes input and output proportional. This input signal is valid only when the
AU signal is on (terminal 2 input is invalid). Use Pr.267 to switch from among input 4 to
Frequency setting 20mA (initial setting), 0 to 5VDC, and 0 to 10VDC.
(current) Voltage input: Input resistance 10kΩ ±1kΩ
Current input: Input resistance 250Ω ±5Ω (When power is ON)
Inputting 0 to ±5VDC or 0 to ±10VDC adds this signal to terminal 2 or 4 frequency
Frequency setting setting signal. Use Pr.73 to switch between input 0 to ±5VDC and 0 to ±10VDC (initial
auxiliary setting) input.
Input resistance 10kΩ ±1kΩ Maximum permissible voltage ±20VDC
Frequency setting Common terminal for frequency setting signal (terminal 2, 1 or 4) and analog output terminal
common AM. Do not earth (ground)
Description
Maximum permissible voltage 20VDC
Maximum permissible current 30mA
Input resistance 10kΩ ±1kΩ (When power is OFF)
Maximum permissible voltage 20VDC
Maximum permissible current 30mA
Input resistance 10kΩ ±1kΩ (When power is OFF)
When the STF and STR
signals are turned on
simultaneously, the stop
command is given.
10VDC, permissible load
current 10mA
5VDC, permissible load
current 10mA