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Ovp selection – AMETEK HPD Series User Manual

Page 21

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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