Chroma 63800 Series - Page 14

Programmable AC/DC Electronic Load 63800 Series Operation & Programming Manual
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3.11 DC Load Simulation ...................................................................................... 3-51
3.12 DC Load Simulation -- Constant Current Mode ............................................. 3-53
3.13 DC Load Simulation -- Constant Resistance Mode ........................................ 3-55
3.14 DC Load Simulation -- Constant Voltage Mode ............................................. 3-57
3.15 DC Load Simulation -- Constant Power Mode ............................................... 3-59
3.16 DC Load Simulation -- Rectified Load Mode.................................................. 3-60
3.16.1 Crest Factor in Rectified Mode Explanation ........................................... 3-62
3.17 DC Load Simulation -- Timing Mode.............................................................. 3-62
3.17.1 CC Mode ............................................................................................... 3-64
3.17.2 CR Mode ............................................................................................... 3-66
3.17.3 CP Mode ............................................................................................... 3-69
3.17.4 CV Mode ............................................................................................... 3-71
3.17.5 Rectified Mode ...................................................................................... 3-72
3.18 Voltage and Current Monitor ......................................................................... 3-75
3.19 Short Circuit On/Off ....................................................................................... 3-75
3.20 Save/Recall Setting ....................................................................................... 3-76
3.21 Parallel Setting .............................................................................................. 3-78
3.22 Three Phases Parallel Setting ....................................................................... 3-87
4. Measurements ........................................................................................................... 4-1
4.1 AC Load Simulation ............................................................................................ 4-2
4.1.1 Constant Current Mode ........................................................................... 4-3
4.1.2 Constant Resistance Mode...................................................................... 4-4
4.1.3 Constant Power Mode ............................................................................. 4-5
4.1.4 Rectified Load Mode................................................................................ 4-6
4.1.4.1 RLC Mode .......................................................................................................... 4-6
4.1.4.2 CP Mode ............................................................................................................ 4-7
4.1.4.3 Inrush Current Mode .......................................................................................... 4-8
4.2 DC Load Simulation ............................................................................................ 4-8
4.2.1 Constant Current Mode ........................................................................... 4-9
4.2.2 Constant Resistance Mode...................................................................... 4-9
4.2.3 Constant Voltage Mode ......................................................................... 4-10
4.2.4 Constant Power Mode ........................................................................... 4-11
4.2.5 Rectified Load Mode.............................................................................. 4-11
5. Protection Features .................................................................................................. 5-1
5.1 Over Voltage Protection (OVP) ........................................................................... 5-1
5.2 Over Current Protection (OCP) ........................................................................... 5-1
5.3 Over Power Protection (OPP) ............................................................................. 5-1
5.4 Over Temperature Protection (OTP) ................................................................... 5-1
5.5 Fan Fail ............................................................................................................... 5-1
5.6 Out of Frequency Range (FREQ ERR) ............................................................... 5-2
5.7 Under Operating Voltage Protection (UVP) ......................................................... 5-2
5.8 Load Fail (LDF) ................................................................................................... 5-2
5.9 Transient Over Pressure Protection(OVPP) ........................................................ 5-2
5.10 Power Fail (PWRFAIL) ........................................................................................ 5-2
6. Theory of Operation .................................................................................................. 6-1
6.1 General ............................................................................................................... 6-1
6.2 Description of Overall System ............................................................................. 6-2
7. Troubleshooting ........................................................................................................ 7-1
7.1 General ............................................................................................................... 7-1
7.2 Troubleshooting .................................................................................................. 7-1
8. Remote Operation ..................................................................................................... 8-1
8.1 General Information ............................................................................................ 8-1