Wiring Of Control Circuit - Mitsubishi Electric FR-A800 Series Instruction Manual

• When using an external power supply for transistor output
Sink logic
Use terminal PC as a common terminal, and perform wiring as
follows. (Do not connect terminal SD on the inverter with the
terminal of 0 V for the external power supply. When using
terminals PC-SD as a 24 VDC power supply, do not install an
external power supply in parallel with the inverter. Doing so
may cause a malfunction in the inverter due to undesirable
currents.)
QY40P type transistor
output unit
Constant
voltage
circuit
2.6.3

Wiring of control circuit

 Control circuit terminal layout
• Recommended cable gauge: 0.3 to 0.75 mm
*1 This terminal operates as terminal FM for the type FM inverter. For the type CA inverter, the terminal operates as terminal CA.
 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.
1.
Strip the signal wires as follows. If too much of the wire is stripped, a short circuit may occur with neighboring wires.
If not enough of the wire is stripped, wires may become loose and fall out.
Twist the stripped end of wires to prevent them from fraying. Do not solder them.
74
2. INSTALLATION AND WIRING
2.6 Control circuit
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Inverter
TB1 STF
TB2 STR
TB17
PC
TB18
24 VDC SD
Current flow
2
∗1
2 5 4 1 F/C +24 SD
AM 5 10E 10 SE SE RUN SU
Cable sheath stripping length
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Source logic
Use terminal SD as a common terminal, and perform wiring as
follows. (Do not connect terminal PC on the inverter with the
terminal of +24 V for the external power supply. When using
terminals PC-SD as a 24 VDC power supply, do not install an
external power supply in parallel with the inverter. Doing so
may cause a malfunction in the inverter due to undesirable
currents.)
QY80 type transistor
output unit
24 VDC
(SD)
Constant
voltage
circuit
So SOC SD SIC S1 S2 PC
IPF OL FU PC RL RM RH RT AU
Inverter
PC
TB1
STF
TB2 STR
TB17
Fuse
TB18 SD
Current flow
A1 B1 C1 A2 B2 C2
STP MRS RES SD SD STF STR JOG
24 VDC
(SD)
CS