1. Introduction GEM80-400
Page 1-12 ALSPA GEM80-400 CONTROLLER TECHNICAL MANUAL Issue 3 04/99
1.8. 9017/ 9018 Power Supply Module
The Enhanced Controller Subrack contains either one 9017 (ac or dc) or one 9018 (dc
only) Power Supply Module, dependent upon the user's supply requirements.
The 9017 Power Supply Module is illustrated in Figure 1.5. Detailed specifications of
both power supply modules are contained in Chapter 6 of this manual;
recommendations for determining power requirements are also given here
Figure 1.5 - 9017 Power Supply Module
Note:
Different versions of this power supply may have slightly different front panels .
1.9. I/O Modules
These modules interface analogue and digital signals, to and from the plant, with the
controller. They provide a high noise immunity by using Opto-isolators for each plant
signal. Detailed information on the complete range of I/O modules is contained in
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