Terminal Specifications - Mitsubishi Electric FREQROL-CS80 Manual

Terminal Specifications

Terminal names and terminal functions are those of the factory set.
Terminal
Type Terminal name
symbol
R/L1, S/L2, T/L3 AC power input
U, V, W Inverter output
P/+, N/- Brake unit connection
Earth (ground)
STF Forward rotation start
∗1
STR Reverse rotation start
∗1
RH, RM, RL Multi-speed selection
∗1
Contact input common
(sink)
External transistor common
SD
(source)
24 VDC power supply
common
External transistor common
(sink)
PC
Contact input common
(source)
24 VDC power supply
Frequency setting power
10
supply
2 Frequency setting (voltage)
4 Frequency setting (current)
5 Frequency setting common
Relay output
A, B, C
∗1
(fault output)
— PU connector
∗1
Indicates that terminal functions can be selected using Pr.178 to Pr.182 and Pr.195 (I/O terminal function selection).
Connect these terminals to the commercial power supply.
Connect a three-phase squirrel-cage motor to these terminals.
Connect the brake unit (FR-BU2), power regeneration common converter (FR-CV), or high power
factor converter (FR-HC2) to these terminals.
For earthing (grounding) the inverter chassis. Be sure to earth (ground) the inverter.
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.
Common terminal for the contact input terminal (sink logic).
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 terminal 5.
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 contact input terminal (source logic).
Can be used as a 24 VDC 30 mA power supply.
Used as the power supply for an external device such as a
frequency setting potentiometer or digital panel meter.
Inputting 0 to 5 VDC (or 0 to 10 VDC) provides the
maximum output frequency at 5 V (or 10 V) and makes
input and output proportional. Use Pr.73 to switch
between input 0 to 5 VDC (initial setting) and 0 to 10 VDC.
Inputting 4 to 20 mADC (or 0 to 5 V, 0 to 10 V) provides
the maximum output frequency at 20 mA 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 among input 4 to 20 mA (initial setting), 0
to 5 VDC, and 0 to 10 VDC. Set the voltage/current input
switch in the "V" position to select voltage input (0 to 5 V /
0 to 10 V).
Common terminal for the frequency setting signal input
(via terminal 2 or 4). Do not earth (ground).
1 changeover contact output that indicates that an
inverter's protective function has been activated and the
outputs are stopped.
Fault: discontinuity across B and C (continuity across A
and C), Normal: continuity across B and C (discontinuity
across A and C)
The PU connector supports the RS-485 communication.
Conforming standard: EIA-485 (RS-485)
Transmission format: Multidrop link
Communication speed: 4800 to 115200 bps
Wiring length: 500 m
Description
When the STF and STR signals are
turned ON simultaneously, the stop
command is given.
5 VDC (±0.2 VDC),
permissible load current: 10 mA
Input resistance: 10 kΩ (±1 kΩ),
Maximum permissible voltage: 20 VDC.
For voltage input,
input resistance: 10 kΩ (±1 kΩ),
maximum permissible voltage: 20 VDC.
For current input,
input resistance: 249 Ω (±5 Ω),
permissible maximum current: 30 mA.
—
Contact capacity: 30 VAC 0.3 A
(power factor = 0.4),
30 VDC 0.3 A
5
15