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2. INSTALLATION AND WIRING
2.6 Control circuit
• When using an external power supply for transistor output
2.6.3
Wiring of control circuit
Control circuit terminal layout
*1
For manufacturer setting. Do not use.
Wiring method
Power supply connection
Use crimp terminals and stripped wire for the control circuit wiring. For single wire, the stripped wire can be used without crimp
terminal.
Connect the end of wires (crimp terminal or stranded wire) to the terminal block.
Sink logic
Use terminal PC as a common terminal, and perform wiring as
follows. (Do not connect terminal SD of the converter unit with
the terminal 0 V of the external power supply. Do not install an
external power source in parallel with the internal 24 VDC
power source (connected to terminals PC and SD) to use
them together. Doing so may cause a malfunction in the
converter due to undesirable currents.)
Source logic
Use terminal SD as a common terminal, and perform wiring as
follows. (Do not connect terminal PC of the converter unit with
the te24 V of the external power supply. Do not install
an external power source in parallel with the internal 24 VDC
power source (connected to terminals PC and SD) to use
them together. Doing so may cause a malfunction in the
converter due to undesirable currents.)
QY40P type transistor
output unit
TB1
TB2
TB17
TB18
24VDC SD
PC
RDI
RES
Converter unit
24VDC
(SD)
Current flow
Constant
voltage
circuit
QY80 type transistor
output unit
Constant
voltage
circuit
PC
TB1
TB2
TB17
Fuse
TB18
RES
RDI
SD
Converter unit
24VDC
(SD)
24VDC
Current flow
NC
NC NC NC NC NC +24 SD
SD
NC NC PC
A1
B1
C1
88R
88S
NC
NC
NC NC
NC NC NC SE SE
RDA
RDB
IPF RSO FAN
PC NC NC NC NC NC NC OH
SD SD
NC
RES
RDI NC NC
∗1
∗1
CAUTION
• Do not use the empty terminals (NC) of the control circuit. Doing so may lead to damage of the converter unit and the
inverter.