Specifications

Power Entry Control Module – Direct Current (PECM-DC)
This section references procedures for the Power Entry Control Module
–Direct Current (PECM-DC), which is specific to the Modular Oven
configuration.
Description
The PECM-DC is mounted to the back wall of the Electronic Enclosure.
The PECM-DC assembly consists of a printed circuit board that controls
the distribution of 24V power throughout the EC as well as distributing
the internal I
2
C bus and controlling oven temperature. This section
covers replacement of the PECM-DC.
Voltage dangerous to life exists. Before performing the removal and
installation procedures, it is important that primary AC power to the
Maxum II be turned off from the main circuit breaker. Observe all
plant safety requirements before performing any repair or
maintenance on the Maxum II.
WARNINGS
Figure 4-2: PECM-DC Board Layout
A5E31405710001 4-13