Advanced Operation
Sorensen DCS Series 3kW Supplies
4.6
4.6.1
Remote Monitoring of Readback Signals and
Status Indicators
Readback
Signals
Calibrated readback signals for remote monitoring of the output voltage and current are
available via connections at the J3 connector on the rear panel. Internal switch SW1 settings
allow you to select either a 0-5 Vdc or a 0-10 Vdc range for the output. See
Configuring for Remote Programming, Sensing, and Monitoring
for more information about
making these connections.
The following table shows the required pin connections and switch settings for remote
monitoring of readback signals with 0-5 Vdc or 0-10 Vdc outputs. Use shielded-twisted pair
wiring (20 to 24 AWG) and ground the shield to J3 connector pin 6 or to the chassis via one of
the J3 connector screws.
J3 Connections:
Switch SW1 Settings:
Readback Signal
Signal (+)
Return (-)
Switch #
Setting
Output Signal
Range
Output Voltage
Pin 19
Pin 12
SW1-4
CLOSED
0-5 Vdc
OPEN
0-10 Vdc
Output Current
Pin 7
Pin 12
SW1-3
CLOSED
0-5 Vdc
OPEN
0-10 Vdc
The readback signal represents 0 to 100% of the model-rated output.
4.6.2 Status
Indicators
Status indicators for thermal shutdown, OVP circuit, programming mode, and operating mode
are available via connections on the J3 connector on the rear panel.
The following table shows the indicator signals, the J3 connector pin at which they are available,
an approximation of the signal magnitude, and the source impedance through which the signal
is fed. Use 20 to 24 AWG wiring.
J3 Connections:
Indicator Signal/
Alternate State
Signal (+)
Return (-)
Signal
Voltage
Source
Impedance
Thermal Shutdown/
Pin 18
Pin 6
+13V
1k ohms
Normal Operation
Pin 18
Pin 6
0V
1k ohms
OVP Circuit Activated/
Pin 17
Pin 6
+13V
1k ohms
OVP Circuit Not Activated
Pin 17
Pin 6
-13V
1k ohms
Remote Programming Mode/
Pin 4
Pin 6
+13V
1k ohms
Local Programming Mode
Pin 4
Pin 6
0V
1k ohm
Voltage Mode Operation/
Pin 5
Pin 6
+13V
1k ohms
Current Mode Operation
Pin 5
Pin 6
-13V
1k ohms
4-20
Operation Manual
