maxPAC Hardware Reference Guide
Metso Automation MAX Controls Inc. • 277596 •
1-4
Model Number Description
IOP381 4-wide frame assembly
IOP382 8-wide rack assembly
IOP383 6-wide rack assembly
IOP015 maxPAC Chassis used with IOP381
IOP011,012 Model 564 Chassis used with IOP381
DPU Mounting
DPU4E mounts in the right most position of the six-pack chassis assembly. It
occupies the equivalent of two I/O modules. Refer to Publication 277590 for
DPU4E information.
I/O Modules
The I/O modules are rugged enclosed printed circuit board assemblies. The
edge connection at the rear of each module provides the interface to the
backplane and the I/O bus. System power and field power, when applicable, is
also available through this connection.
While I/O modules vary by type, they may include one or more of the
following:
q A color bar on the module faceplate identifies the module type. Each
module type has a unique color.
q Euro-style terminal connector blocks for field wiring; each block contains
16 connectors;
q Rotary address switch;
q Light Emitting Diodes (LED) for module status indication;
q All the modules that require field power include a front mounted fuse
disconnect and a LED fuse status indication;
q All discrete modules include front mounted LEDs for input/output logic
state;
q The TC module includes front-end connectors with thermistors to measure
the junction temperature for cold junction compensation.
The I/O modules may be inserted and withdrawn safely with 24 Vdc and field
power applied.
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