GFK-1504K
Chapter 2 Installation Instructions
2-31
2
Installating Relay-Style Interposing I/O Terminals IC200CHS111 and IC200CHS112
The Relay-Style Interposing I/O Terminals (IC200CHS111 and IC200CHS112) each
provide dry contacts capable of switching high current outputs (up to 8A) . For the Relay
Style Interposing I/O Terminals, power for operation of the relay coils must be provided
by an external 24VDC power supply. This power must be provided to both the main base
(IC200CHS111) and the expansion base (IC200CHS112). Connection of this external
power supply is made at the terminals A17 & A18 (B17 & B18 for the expansion base).
This power connection is for the relay coils only.
User loads must be powered by an
external source.
Components labeled A1-A16 correspond to points Q1-Q16. Components labeled B1-B16
correspond to points Q17-Q32. Each point is associated with 3 terminal connections,
labeled NO (Normally Open), C (Common), and NC (Normally Closed). Loads may be
connected between C and NO, C and NC, or both.
J1
J2
A16
A15
A14
A13
A8
A7
A6
A5
A4
A3
A2
A1
A12
A11
A10
A9
A16
A15
A14
A13
A8
A7
A6
A5
A4
A3
A2
A1
A12
A11
A10
A9
A17
A18
-
+
24VDC
A1
V
Q1
NO C NC
Relay-Style Interposing I/O Terminals, Terminal Wiring
Each terminal accommodates:
One solid (0.2 to 4.0mm
2
cross section) or stranded (0.2 to 2.5mm
2
cross section),
AWG #12 to AWG #24.
When inserting two wires in the same position, the wires must be the same size and type
(solid or stranded), as specified below:
Rigid or flexible wires: 0.2 to 1.5mm
2
cross section.
Stranded wires with ferrules, no plastic sleeve: 0.25 to 0.75mm
2
cross section
Stranded wires with twin ferrule, with plastic sleeve
Recommended torque for the terminal screws is 0.5 to 0.6 Nm.
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