24
Terminal block <TB1> on the control board <VFC66R-Z>
Terminal
number
Purpose
Description
52MA
Operation contact
Turns on while the converter is operated.
Contact rating 250 VAC, 30 VDC, 2 A
86A
Protection contact
86Aa-86Ac turns on and 86Ab-86Ac turns off while the converter
takes the protection operation.
Contact rating 250 VAC, 110 VDC, 0.3 A
4INC
External MC input permission
External MC input permission turns on.
Contact rating 250 VAC, 30 VDC, 2 A
4I
Inverter operation enable
Turns on when an inverter is permitted to run. Disable starting
an inverter while this relay is OFF, connecting this terminal
to the emergency stop (Normally closed), etc. of the inverter.
Contact rating 250 VAC, 30 VDC, 2 A
4STA
During MC ON
Turns on while the MC contact inside the converter unit is ON.
Contact rating 250 VAC, 30 VDC, 2 A
START
Operation signal
Input terminal for operation signal
PS
+12V output
12 V DC voltage.
Multifunction input
・
Maximum input voltage 24 VDC, maximum input current 3 mA
■
Initial state (fixed functions)
・
Multifunction input terminal (1):
Multifunction input terminal
・
Multifunction input terminal (2):
Unused (internal PLC function available)
・
Multifunction input terminal (3):
Mode switch (ON: PWM OFF: 120-degree conduction)
・
Multifunction input terminal (4):
Emergency stop (Normally open)
・
Multifunction input terminal (5):
Protection reset
[Caution] Do not connect the terminal [GND] to the ground
terminal.
MI1
Multifunction input terminal (1)
PS
+12V output
MI2
Multifunction input terminal (2)
MI3
Multifunction input terminal (3)
MI4
Multifunction input terminal (4)
GND
GND terminal
MI5
Multifunction input terminal (5)
GND
GND terminal
FUSE(-)
Negative side input of
AC fuse
Detect a blown AC fuse.
FUSE(+)
Positive side input of
AC fuse