AMETEK DCS-E 3kW Series - Manual (Page 51)

Sorensen DCS-E Series 3kW Supplies Advanced Operation
M362295-01 Rev C 4-7
4.3 REMOTE PROGRAMMING: OUTPUT VOLTAGE AND
CURRENT LIMIT
Remote programming allows control of the power supply's output voltage and/or current limit to
shift from local operation at the front panel voltage and current controls to external analog input
sources. As a programming source is varied, the power supply's output varies proportionally
over its output range.
The analog programming signals are connected to the rear panel J3 connector. To provide the
lowest noise performance, shielded-twisted pair wiring is recommended for making
connections from external circuits to the J3 connector. Use the shortest leads possible.
Ground the shield to pin 6 on J3 or to the chassis via one of the J3 connector screws.
CAUTION!
The remote programming input is internally referenced to the supply's negative
output. Do not connect remote programming input lines (J3 pins 9 and 10) to
the supply's positive output.
R EMOTE P ROGRAMMING O PTIONS
The following table summarizes access options for programming output voltage and current limit
with the input scales supported for the DCS-E Series (3kW) supply. Refer to Section 4.3.1 for a
procedure and a connection diagram for programming output voltage and current limit using the
REM/LOC switch. Subsequent sections provide short procedures and diagram the J3 connector
configurations and connections required for remote programming of output voltage and/or
current limit without using the REM/LOC switch.
Remote Programming Options Control of ... Programming Scales *
Programming with the Output Voltage and 0-5V
REM/LOC Switch Current Limit 0-1 mA
0-10V (see Notes below)
Programming without Output Voltage and/or 0-5V, 0-10V
the REM/LOC Switch Current Limit 0-1 mA
0-5k
Local control
0-10V (see Notes below)
* These scales may be used in any combination.
Notes for Programming with a 0-10V Source:
1. Programming with a 0-10V external voltage source requires that you reset internal
jumpers JMP1 and/or JMP2 in addition to performing any external operations. As in any
situation that requires removing the supply's cover, following safe procedures is
necessary. Review Section 2.2 Safety and follow the procedures for removing the cover
and resetting JMP1 and JMP2 in Section 4.2.3.
2. Resetting internal jumpers may require a recalibration of the programming circuit to
maintain programming accuracy. See Section 6.3 Calibrating for Programming
Accuracy.