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Terminal specification explanation
Type
Terminal
Symbol
R/L1, S/L2,
T/L3
R4/L14,
S4/L24,
T4/L34
R1/L11,
S1/L21
P/+, N/-
RES
SOF
ROH
X1
X2
SD
PC
RDY
CVO
Y1
Y2
RSO
SE
FM
AM
5
A, B, C
88R, 88S
Terminal Name Description
Power input
Power input
These terminals are used to detect power phase and power voltage, and to input control power. Connect them to the commercial power supply. If the inverter is operated without connecting them to the commercial power supply, the converter will be damaged.
Connect them to the reactor 2.
The voltage phases of the terminals R4/L14, S4/L24 and T4/L34 and the terminals R/L1, S/L2 and T/L3 must be matched. If these terminals are not connected correctly, the converter does not operate properly.
Power supply for control circuit
These terminals are connected to the phase detection terminals R/L1 and S/L2 in the initial status. To retain the fault display and fault output, remove the jumpers (cables) and apply external power to these terminals.
Inverter connection Connect them to the inverter terminals P/+ and N/-.
Earth (Ground) For earthing (grounding) the converter chassis. It must be earthed (grounded).
Reset
Converter stop
Inrush current limit resistor overheat protection
Monitor switching
Used to reset fault output provided when a fault occurs.
Turn ON the RES signal for more than 0.1s, then turn it OFF.
Turning ON the SOF signal stops the converter.
RDY signal turns OFF, limit MC turns ON
200V class
7.5K to 75K
400V class
7.5K to 220K
Connect this terminal to terminal ROH1 of the outside box (FR-
HCB2). The ROH signal is input to stop the converter operation when the limit resistor may overheat.
400V class
280K to 560K
An auxiliary contact (NO contact) of a limit resistor MC, a limit resistor (with thermostat) (NC contact), and a filter capacitor alarm detector (NC contact, 400K and 560K) are connected to stop the converter operation when overheating of the limit resistor becomes a concern and when a filter capacitor is faulty.
FM and AM output or PU monitor display can be switched by a combination of ON/
OFF of X1 signal and X2 signal.
Contact input common
(sink) (initial setting)
Common terminal for contact input terminal (sink logic) and terminal FM.
External transistor common (source)
24VDC power supply common
External transistor common
(sink) (initial setting)
When connecting the transistor output (open collector output), such as a programmable controller in source logic, 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 (terminal PC).
Isolated from terminals 5, SE and SE2.
When connecting the transistor output (open collector output), such as a programmable controller in sink logic, connect the external power supply common for transistor output to this terminal to prevent a malfunction caused by undesirable currents.
External transistor common
(sink) (initial setting)
24VDC power supply
Common terminal for contact input terminal (source logic)
Can be used as 24VDC 0.1A power supply.
Inverter run enable signal
Turns ON at alarm occurrence and reset (RES) signal input.
Connect this terminal to the terminal MRS or a terminal where the X10 signal is assigned to in the inverter.
Turning ON RDY signal stops the inverter.
RYD signal OFF: Inverter can run
RYD signal ON: Inverter cannot run
During converter run
Multi-purpose output 1
Multi-purpose output 2
Converter reset
Open collector output common
Signal is output during harmonic suppression.
Output item: OL signal (overload alarm) (initial setting)
Turns ON at an occurrence of overcurrent (150% overload or more).
Output item: PHS signal (power phase detection) (initial setting)
Turns ON when power phase detection is locked.
Turns ON at a converter reset (RES-ON).
Connect this terminal to the inverter terminal of which RES signal is assigned to.
Reset the connected inverter by turning ON the RSO.
Common terminal for the terminals RDY, CVO, OL, Y1, Y2
Connect it to the inverter terminal SD (sink logic).
For meter
Analog signal output
Input resistance : 4.7k
Voltage at opening: 21 to
27VDC
Contacts at short-circuited: 4 to 6mADC
100mA is ON.)
Power supply voltage range 19.2 to 28.8VDC
Permissible load current
Permissible load 24VDC
(27VDC maximum) 0.1A
(A voltage drop is 2.8V maximum when the signal
Select one monitor item from multiple monitor items such as input current and bus voltage. Not output during a converter reset.
The output signal is proportional to the magnitude of the corresponding monitoring item.
Monitor item can be switched by ON/OFF of terminals X1 and X2.
Permissible load current
2mA
At rated input current of the converter: 1440 pulses/s
Output signal 0 to 10VDC
Permissible load current
1mA
Load impedance 10k
Analog signal output common
Common terminal for analog signal output
Fault contact
1 changeover contact output indicates that the converter's protective function is activated and the output is stopped.
Fault: No conduction across B and C (Conduction across A and C),
Normal: Conduction across B and C (No conduction across A and C)
Contact capacity AC230V
0.3A
(Power factor=0.4)
30VDC output 0.3A
MC connection terminal
Controls the MC for the limit resistor.
21
22
Type
Terminal
Symbol
Terminal Name
Y3
Multi-purpose output 3
Description
Output item: Y5 signal (output voltage match) (initial setting)
Turns ON when the detected bus voltage equals to the commanded bus voltage.
P ermissible load: 24VDC
0.1A
SE2
Open collector output common
Common terminal for terminal Y3
— PU connector
With the PU connector, communication can be made through RS-485. (for connection on a 1:1 basis only)
Conforming standard : EIA-485 (RS-485)
Transmission format : Multidrop
Communication speed : 4800 to 38400bps
Overall length : 500m
NOTE
If the inverter is operated without connecting the terminals R/L1, S/L2, T/L3 of the converter to the power supply, the converter will be damaged.
indicates that terminal functions can be selected using Pr. 3 to Pr. 7 (input terminal function selection) and Pr. 11 to Pr.
16 (output terminal function selection) .
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