Terminals - Mitsubishi Electric FREQROL HC Instruction Manual

5.1.3 Terminals

Terminal
Type
Symbol
R, S, T
Main
circuit
R4, S4, T4
P , N Inverter connection
MC1,CMC2
RES
SDF
X1
Monitoring switch-over
X2
SD
RDY Inverter run enable signal
CVO Converter operating
OL
Y1
Multi-Purpose output
Y2
RSO
FM Meter connection terminal
Open collector output
SE
SD Contact input common
A, B, C
Terminal Name
Terminals for power supply phase, power voltage detection and control power input. Connect
Power input to commercial power supply. Running the inverter without connecting these terminals will
damage the high power factor converter (FR-HC).
Power input Connect to reactor 2.
Connect to P and N terminals of inverter.
MC connection Connect to MC1, MC2 in external box.
Reset
Converter operation stop
(used to return from error)
Converter stop Converter gate shut-off
Selection of FM output and
PU monitor display
Common terminal
Common terminal
(input, FM)
Closed only when alarm
occurs or reset (RES) signal
is input.
Output during IGBT switching
Overcurrent
(150% load or more)
Overload alarm Overvoltage
(output at overvoltage
trip-less operation)
Multi-purpose output
terminal External fault
Output when converter is
Converter reset
reset.
Pulse train signal is output in
proportion to input current.
Open collector common
common
Common terminal (I/O, FM)
Alarm conntact Alarm output
Description
Function Circuit
24VDC
sink circuit
–
Open
collector
PWM pulse
output
–
–
Change-over
contact
- 58 -
Remarks
Operations of converter and all inverters
connected are stopped.
RDY signal is open.
Inrush MC is closed.
• Input current monitor
• Bus voltage monitor
• Input voltage monitor
• Input power monitor
Inverter is stopped.
RDY signal open:
Inverter operative
RDY signal closed:
Inverter inoperative
• Power supply
phase detection signal
• Output voltage match
signal detection
• Instantaneous power
failure detection
• Driving/regenerative
mode judgment
Inverter is reset.
Depends on setting of X1, X2 terminals.