regulated at the load versus the power supply output terminals. To connect the power
supply for remote voltage sensing (see Figure 3-7 for connection requirements), perform
the following procedure.
CAUTION
If the power supply is operated with load
power lines disconnected and sensing line
connected, internal power supply damage
may occur. (Output current then flows
through sensing terminals.)
Connect sensing leads from the load positive to J3-1 and the load negative to J3-2. A
shielded, twisted-pair, hookup wire is recommended to avoid potential noise
interference.
3.7 REMOTE OUTPUT ON/OFF CONTROL
Remote on/off control may be accomplished by contact closure or by an isolated
external AC/DC or TTL/CMOS voltage source.
1.
Remote on/off by contact closure. Output is on when contacts are closed.
See Figure 3-8 for connection requirements.
2.
Remote on/off control may be accomplished by an external 12 to 120 VAC or
6 to 120 VDC or TTL/CMOS source. Application of AC/DC or high state
TTL/CMOS voltage will turn on the power supply. See Figures 3-9 and 3-10
for connection requirements.
3.8 REMOTE OVERVOLTAGE SET
A remote DC voltage source can be connected externally between terminals J1-3 (REM
OV SET) and J1-6 (COM) to set the output overvoltage trip level. A 0-5 VDC signal = 0-
110% of rated output voltage. See Figure 3-11 for connection requirements. Do not
program the remote overvoltage set point greater than 10% (5.0V) above the power
supply rated voltage as internal power supply damage may occur.
NOTE
The following modes of operation are used
for applications requiring more current or
voltage than is available from a single
power supply. To meet the requirements for
greater output voltage or current, two
supplies may be connected in series or
parallel.
M550004-01
3-10
Summary of Contents for Sorensen DHP Series
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