Vega DSGH - Jumpers

DSGH Installation and Operation Guide 81
Diagnostics and repair
Jumpers
Jumpers JP1 and JP2 on the power supply board set the current loop
source or sink mode.
The gauge does not use jumpers J1 – J4 on the CPU board.
TP1 Isolated ground
TP2 Loop current test point 200 mV/mA loop current. Referenced to
isolated ground.
Table 5.5 CPU test point labels
Label Description
Count Raw input signal coming from the preamplifier.
GND Logic ground
U5 pin 8 +5 V power supply test points. Referenced to logic ground.
Table 5.4 Power supply board test point labels
Label Description
Note: Do not change the jumpers from the current setting without
calling VEGA Field Service.
Table 5.6 Jumper settings
Mode Gauge current loop Jumper setting
Source mode Self-powered JP1 1-2, JP2 2-3
Sink mode DCS-powered JP1 2-3, JP2 1-2