AMETEK DCS-E 1KW Series - Manual (Page 40)

Installation and Operation Sorensen DCS Series 1kW and 1.2kW Supplies
2-18 M362500-01 Rev H
level signal between pins 14 (positive) and 2 (return) of connector J3 determines the output
conditions:
TTL LOW = OUTPUT ON
TTL HIGH = OUTPUT OFF
For AC or DC operation, an input of 12-250 Vac (or 12-130 Vdc) between pins 1 (positive for
DC input) and 2 (return) of connector J3 will disable the output of the supply.
A red LED on the front panel indicates when the shutdown circuit is activated. The input lines
are optically isolated and can therefore be accessed by circuits with a voltage differential of up
to 600 Vdc.
2.10.1 Remote ON/OFF by Contact Closure
An external relay may be used to operate the ON/OFF control circuit as follows. Connect one
side of a normally open relay to pin 15 of connector J3 (+12V). Connect the other side of the
relay to pin 14 (TTL Shutdown). Also connect J3 pin 2 (Shutdown return) to pin 6 (Ground).
Using this configuration, the power supply will be OFF when the relay coil is energized and ON
when the relay is de-energized.
If a normally closed relay is substituted for the normally open relay in the configuration
described above, the power supply will be ON when the relay coil is energized and OFF when
the relay is de-energized.
2.11 Remote Programming of Output Voltage and
Current Limit
The output voltage and current limit of the power supply can be remotely programmed through
the rear panel J3 connector using external voltage sources, current sources and
resistances. Switch SW1 on the A2 printed circuit board controls the programming as
diagrammed below. When the supply is controlled by remote programming, the green
REMOTE led on the front panel is illuminated.
S
W1
-1
S
W1
-2
S
W1
-3
S
W1
-4
S
W1
-5
S
W1
-6
S
W1
-7
S
W1
-8
CLOSED
SELECTS
REMOTE CURRENT LIMIT
5V OR 10V PROGRAMMING
OF
SELECTS REMOTE
RESISTIVE OVP
PROGRAMMING SCALE
SELECTS
REMOTE VOLTAGE LIMIT
5V OR 10V PROGRAMMING
OF
SELECTS REMOTE OVP
PROGRAMMING SCALE
NOT USED
NOT USED
OPEN
Switch SW1 and Functions
Note: To set SW1, shut the unit off, disconnect the AC source, and remove the cover. Make
the desired switch settings, reinstall the cover, and reconnect the unit to its AC source.