Figure 12 - Power Status Module (Psm) - Honeywell 900U02-0100 User And Installation Manual

Power Status Module (PSM)
The Power Status Module (PSM) (Figure 12) sits between redundant power supplies on the I/O rack (see
page 24). It is a status module for both power supplies and indicates which are in use, PS-1 (left) or PS-2
(right) or both (typical).
When the status indicator for either or both the power supplies is lit, it is reporting that the status of the
associated power supply is good and that the outputs are within specified limits. When the status is off,
either the power supply is off or the voltages are out of tolerance.
Figure 12 – Power Status Module (PSM)
26 ControlEdge HC900 Process & Safety Controller User and Installation Manual Revision 10
May 2019