Ovp selection – AMETEK HPD Series User Manual
Page 21

Installation and Configuration
OVP Selection
19
OVP Selection
Over voltage protection (OVP) on the GPIB 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, the control of the OVP trip level switches to the front panel
potentiometer.
Jumper J217 is the OVP control jumper. Opening jumper J217 disables remote OVP
control of the power supply, limiting control of the OVP trip level to the front panel
potentiometer. The local mode disable jumper, J95, also affects the location of OVP
control. Table 2.2 shows the jumper settings and OVP programming selection. See
“Remote/Local Operation” on page 21 for a detailed description of the local mode
disable jumper, J95
Table 2.2 OVP Control Mode Selection
PCB Jumper
J217 Position
PCB Jumper J95
Position
OVP Programming Selection
Closed (default)
Closed (default)
Software or Front Panel OVP 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