Installation and Configuration
Additional User Options and Settings
You can customize remote operation settings for OVP (over voltage protection) control and TTL shutdown by changing jumper positions on the Ethernet/RS-232 Interface card. Refer to the operating manual for information on how to use over voltage protection and TTL shutdown.
OVP Selection
Over voltage protection (OVP) on the Ethernet/RS-232 Interface is set at the factory for remote software operation. When operating the power supply in remote mode, you control the OVP trip level using the OVSET software command. If you return the power supply to local operation by using the REN software command or the front panel LOCAL switch, control of the OVP trip level changes from software control to the front panel OVP potentiometer. The default OVP trip level is set as 110% of the power supply's rated output voltage. See Table 2-10 on page 2–21for a complete list of remote power ON default settings.
You can isolate the location of OVP control by changing the positions of the Local OVP Control jumper J65 and the Remote OVP Control jumper J103, both on the Ethernet/RS-232 Interface PCB. The default jumper settings allow control of OVP to depend on the operating state of the power supply. By physically changing the jumper settings, you can isolate the location of OVP control to software control only or front panel control only. Table 2-12, “OVP Control Mode Selection” on page 2–24shows a table of jumper settings and OVP programming selection. Refer to Figure 2-3 on page 2–6for the location of the jumpers on the Ethernet/RS-232 Interface PCB. You will need to remove the cover to change any jumpers. See “Changing Internal Jumpers” on page 2–8.
Table 2-12OVP Control Mode Selection
ClosedPCBJ65PositionJumper(default) ClosedPCBJ103JumperPositionOVP(default) SoftwareProgrammingor Front PanelSelectionOVP control
| | (dependent on the power supply operating |
| | state) |
| | |
Closed | Open | Software OVP control only |
| | |
Open | Closed | Front Panel OVP control only |
| | |
Open | Open | Front Panel OVP control only |
| | |
