Sorensen DCS300-4E - Page 12

Contents Sorensen DCS Series 1kW and 1.2kW Supplies
viii M362500-01 Rev H
2.6.1 Load Conductor Ratings ................................................................... 2-8
2.6.2 Load Connection and Grounding ...................................................... 2-8
2.6.3 Inductive Loads ................................................................................ 2-9
2.6.4 Remote Sensing ............................................................................. 2-10
2.6.5 Negative Output Operation ............................................................. 2-11
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
2.9.5 Remote OVP Sensing..................................................................... 2-17
2.10 Remote ON/OFF .......................................................................................... 2-17
2.10.1 Remote ON/OFF by Contact Closure ............................................. 2-18
2.11 Remote Programming of Output Voltage and Current Limit ......................... 2-18
2.11.1 Programming With External Voltage Sources ................................. 2-19
2.11.2 Programming With an External Resistance .................................... 2-20
2.11.3 Programming With an External Current Source .............................. 2-22
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