IAI America ERC - Manual (Page 56)

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3.6 Configuration Using an Insulated PIO Terminal Block
If either of the following conditions applies, use an insulated PIO terminal block:
[1] Want to insulate the control power supply from the PIO power supply.
[2] Want to change the I/O logic of the control board
PERSONAL
COMPUTER
PC software
Optional
Teaching pendant
Optional
Cable length: 5 m
Host system
Insulated PIO terminal block
NPN, vertical
NPN, horizontal
PNP, vertical
PNP, horizontal
TB1
TB3 Connector
J1
TB4
ERC actuator
24-VDC control/motor power
supply (2 A or more)
Brake release switch
Emergency-stop/motor-power
cutoff circuit
TB2
Relay cable
Standard cable
Robot cable
Cable length: 1 m, 3 m, 5 m