IAI America ERC User Manual

Page 76

[1] Power/emergency-stop terminal block (TB1)

Provide a contact output for the emergency-stop switch on the teaching pendant (RCA-T/E).
EMS1 and EMS2 are provided to comprise an interlock with a safety circuit provided by the user
when a teaching pendant with emergency-stop switch is connected to the connector on the rear
cover.
Connection port for the brake release switch
Motor power supply port
Positive side of the 24-V control power supply

EMS1,
EMS2

24V

Negative side of the 24-V control power supply

[2] Link-connection terminal block (TB2)

A connection port for linking a SIO converter, if used.
“A” on the left side connects to link-connection terminal block (A) on the SIO converter.
“B” on the right side connects to link-connection terminal block (B) on the SIO converter.
(Note)

Be sure to use twisted pair wires for the above two lines (SGA/SGB).

[3] Frame-ground/ground terminal block (TB4)

 Frame-ground terminal (FG) . . . (1) A connection port for the relay cable’s shielded wire (drain wire).

(2) A connection port for the ground wire leading to the enclosure.

 Ground terminal (0 V) . . . Use this terminal as a relay port to connect a different power-supply line to the same

grounding point.

[4] Relay connector (J1)

A connector port for the relay cable (CB-ERC-PWBIO-***-H6).

[5] Terminal-resistor connection switch

If a SIO converter is used and the link cable is long (10 m or more, as a guideline), a terminal resistor will be
required to prevent signal reflection.
This unit can be used in the above application, because the TB2 terminal block has a built-in terminal
resistor.
Setting the switch to the [RTON] side will connect the terminal resistor of approx. 120

.