Service; Cleaning; General; Basic Operation - Ametek CSW5550 User Manual

User Manual

6. Service

6.1 Cleaning

The exterior of the power source may be cleaned with a cloth dampened with a mild detergent
and wrung out. Disconnect mains power to the source before cleaning. Do not spray water or
other cleaning agents directly on the power source.

6.2 General

This section describes the suggested maintenance and troubleshooting procedures. The
troubleshooting procedure is divided into two sections. The first section deals with basic
operation and connection of the equipment. The second section requires opening the unit and
using LED indicators and a simple multimeter to troubleshoot the unit down to the module level.
Only a qualified electronic technician should attempt this level troubleshooting.

6.3 Basic operation

PARAGRAPH
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
6.3.1 Excessive Output Voltage
CAUSE
External sense not connected(If used)
Voltage on Output Terminal Block is
higher than that on Sense Terminal Block
If the voltage is measured with an External
DVM from Line to Line it will be higher
than the programmed voltage
6.3.2 Poor Output Voltage Regulation
CAUSE
Unit is overloaded
Unit is programmed to wrong voltage
range.
Input line has fallen below spec. limit.
Output Sense lines not connected to load
118
PROBLEM
Excessive Output Voltage
Poor Output Voltage Regulation
Overload Light On
Distorted Output
Unit Shuts Down After 1-2 Seconds
No Output and no lights on front panel
No output, but front panel controller is active.

Table 6-1: Basic Symptoms

SOLUTION
Connect external sense wires from TB3 on
rear panel to the AC power outlet TB2
If the External Sense is connected to the
load the voltage output on TB2 will be
higher when the output is loaded
Connect the External DVM from Line to
Neutral on the Output Sense Terminal
Block, TB3) for the correct voltage.
SOLUTION
Remove overload
Select correct voltage range.
Check input supply voltage.
Connect Output Sense (TB3) to the load.
California Instruments
CSW Series