Sorensen DCS Series 1kW and 1.2kW Supplies
Contents
M362500-01 Rev K
xv
2.7
Single Supply Operation (Local Mode) .......................................................... 2-11
2.8
Multiple Supplies ............................................................................................ 2-12
2.8.1
Series Operation .............................................................................. 2-12
2.8.2
Parallel Operation ............................................................................ 2-12
2.8.3
Split Supply Operation ..................................................................... 2-13
2.9
Over Voltage Protection (OVP) ...................................................................... 2-13
2.9.1
Front Panel OVP Operation ............................................................. 2-13
2.9.2
Remote Programming of OVP With External Voltage Sources ....... 2-14
2.9.3
Remote Programming of OVP with an External Resistance ............ 2-15
2.9.4
Remote Programming of OVP with External Current Sources ........ 2-16
2.10
Remote ON/OFF ............................................................................................ 2-17
2.10.1
Remote ON/OFF by Contact Closure .............................................. 2-17
2.11
Remote Programming of Output Voltage and Current Limit .......................... 2-18
2.11.1
Programming With External Voltage Sources ................................. 2-18
2.11.2
Programming With an External Resistance ..................................... 2-20
2.11.3
Programming With an External Current Source .............................. 2-21
2.12
Remote Monitoring and Status Indicators ...................................................... 2-23
SECTION 3 THEORY OF OPERATION ................................................ 3-1
3.1
Power Circuit (A2 Assembly) ........................................................................... 3-1
3.1.1
Basic Off-Line Switching Regulator Theory ....................................... 3-1
3.1.2
Simplified Full Bridge Converter Theory ............................................ 3-3
3.1.3
Detailed Circuit Description ............................................................... 3-3
3.2
Meter Circuit (A1 Assembly) ............................................................................ 3-9
3.2.1
Voltmeter ......................................................................................... 3-10
3.2.2
Current Meter .................................................................................. 3-10
SECTION 4 MAINTENANCE, TROUBLESHOOTING, AND CALIBRATION
4-1
4.1
General ............................................................................................................ 4-1
4.2
Periodic Service ............................................................................................... 4-1
4.3
Troubleshooting ............................................................................................... 4-1
4.3.1
Preliminary Checks ............................................................................ 4-2
4.3.2
Troubleshooting at the Operation Level ............................................ 4-2
4.4
Calibration ........................................................................................................ 4-3
