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Wiring the Alarm Contact
The Alarm Contact is made up of the two middle contacts of the terminal
block on the IMC-101G’s top panel. Refer to the next section for detailed
instructions on how to connect the wires to the terminal block connector
and how to attach the terminal block connector to the terminal block
receptor.
In this section, we explain the meaning of the two contacts used to
connect the alarm contact.
FAULT: The two middle contacts of the
6-contact terminal block connector are used to
detect both power faults and port faults. The
two wires attached to the fault contacts form
an open circuit when:
1.
The IMC-101G has lost power from one of
the DC power inputs.
OR
2.
One of the ports for which the
corresponding PORT ALARM DIP Switch is
set to ON is not properly connected.
If neither of these two conditions is met, the
fault circuit will be closed.
Wiring the Redundant Power Inputs
The top two contacts and the bottom two contacts of the 6-contact
terminal block connector on the IMC-101G’s top panel are used for the
IMC-101G’s two DC inputs. The top and front views of one of the terminal
block connectors are shown here.
STEP 1:
Insert the negative/positive DC wires into the
V-/V+ terminals, respectively.
STEP 2:
To keep the DC wires from pulling loose, use a
small flat-blade screwdriver to tighten the
wire-clamp screws on the front of the terminal
block connector.
STEP 3:
Insert the plastic terminal block connector
prongs into the terminal block receptor, which
is located on the IMC-101G’s top panel.
NOTE Use copper conductors only; 12-28 AWG gauge, 4.5 in-lb torque.
ATTENTION
Before connecting the IMC-101G to the DC power inputs, make
sure the DC power source voltage is stable.
