Specifications

Application ModuleX – Power Supply
16 Application ModuleX Service 12/01
Honeywell
2.4 Power Supply
Introduction
The A
X
M node contains a power supply (55 amp) that is used in many
other LCN node types.
It is capable of producing output voltage margins of +5% and -5% that,
in some cases, are used in factory test and troubleshooting activities. This
margining is controlled by the jumper on the face of the power supply.
See the following diagram.
Similar power supplies are used in both the K2LCN/K4LCN (Five-slot)
and HMPU (Ten-slot) versions of A
X
M.
Node power
margin
restrictions
W
ARNING
The low power margin (-5%) must never be used in the
A
X
M. The coprocessor and hard disk drive design allows
for only a -2.5% margin. Using -5% margins will produce
unpredictable results.
The high (+5%) power margin can be used by factory test
and during troubleshooting activities. Honeywell does not
recommend using any power margins while a node is on
process.
Node power
supply diagram
The following diagram shows the power supply in a Five-slot chassis
(K2LCN/K4LCN version). A similar power supply is used in the Ten-
slot chassis (HMPU version).
40047
Error
Margins Test
Jumper
Reset
Button
Power
Supply
Power On/Off
Switch
Fan
Module
Power
OK
5
4
3
2
1
5-Slot
Chassis
Norm
Lo Hi