In this mode, maximum voltage of both supplies is set using the MASTER VOLTAGE
controls (voltage at output terminals of the SLAVE supply tracks the voltage at the output
terminals of the MASTER supply). Also, in this mode of operation the positive terminal (red) of
the SLAVE supply is connected to the negative terminal (black) of the MASTER supply.
This allows the two supplies to be used as one 0 to double rating voltage supply.
c. When both switches are engaged (in), the unit is in the TRACKING PARALLEL mode. In this
mode the MASTER and SLAVE supplies are wired together in parallel and both the maximum
current and voltage are set using the MASTER controls.
The MASTER and SLAVE outputs can be used as two individual (but tracking) power supplies or
just the MASTER output can be used as a 0 to rating voltage supply with a 0 to double rating
current capability.
16 " + ": output terminal: positive polarity output terminal for the MASTER supply.
19 " + ": output terminal: positive polarity output terminal for the SLAVE supply.
17 " GND " terminal: Earth and chassis ground.
20 " GND " terminal: Earth and chassis ground.
18 " - ": output terminal: Negative polarity output terminal for the MASTER supply.
21 " - ": output terminal: Negative polarity output terminal for the SLAVE supply.
23 " + ": output terminal: positive polarity output terminal for 5V supply.
24 " - ": output terminal: Negative polarity output terminal for 5V supply.
29 Output ON/OFF switch: DC power supply output when switch is engaged (in).And when output is
off, both the voltage and current can be adjusted before the output is resumed.
28 Output indicator: lights when switch is engaged (in).
3-2 Rear Panel
25 Fuse holder
26 Power cord
27 Fan
30 AC voltage select switch
4. OPERATION INSTRUCTIONS
4-1 Precaution
(1). AC input
AC input should be within the range of line voltage±10% 50/60Hz.
(2). Installation
Avoid using the supply in a place where the ambient temperature exceeds 40 C. The heat sink
located at the rear of the supply must have sufficient air space for radiation.
Summary of Contents for Precision AC- DC Power Supply
Page 12: ...Fig 3 2 Rear Panel...
