AMETEK BPS Series - Manual (Page 131)

User Manual AMETEK Programmable Power
BPS Series 131
8. Service
8.1 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.
8.2 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.
8.3 Basic operation
PARAGRAPH PROBLEM
0 Excessive Output Voltage
8.3.2 Poor Output Voltage Regulation
8.3.3 Overload Light On
8.3.4 Distorted Output
8.3.5 Unit Shuts Down After 1-2 Seconds
8.3.6 No Output and no lights on front panel
8.3.7 No output, but front panel controller is active.
Table 8-1: Basic Symptoms
8.3.1 Excessive Output Voltage
CAUSE SOLUTION
External sense not connected (If used) Connect external sense wires from TB2 on rear
panel to the AC power outputs on TB1A and
TB1B
8.3.2 Poor Output Voltage Regulation
CAUSE SOLUTION
Unit is overloaded Remove overload
Unit is programmed to wrong voltage range. Select correct voltage range.
Input line has fallen below spec. limit. Check input supply voltage.