TM 11-6120-247-14-1
resistor is connected across terminals 1 and 3
in any of its modes of operation, some portions of the
as specified in paragraph 2-9.
internal circuitry must be disconnected by removing
c. Link Combination for' Current Programing. In-
specific terminal board links. The operator must
spect the terminal board and remove the link between
insure that the correct combination of links is securely
terminals 8 and 9. Be sure that links are securely fas-
fastened to the proper terminals.
a. Link Combinution for Constant Voltage,
tened between terminals 1 and 2, 3 and 4, 5 and 6, and
10 and ll.
Constant Current, or Predetermined Values of
CAUTION
Current and Voltage. Inspect the terminal board and
insure that links are securely fastened between
Do not operate the power supply with link re-
moved from terminals 8 and 9 unless a
terminals l and 2, 3 and 4, 5a nd 6, 8 and 9, and 10
resistor is connected across terminals 7 and 9
and 11.
as specified in paragraph 2-10.
d. Link Combination for Remote Voltage Sensing at
CAUTION
Load. Inspect the terminal board and remove the links
Do not operate the power supply unless all
between terminals 3 and 4 and 5 and 6. Be sure that
the links are present and securely fastened.
links are securely fastened between terminals 1 and 2,
b. Link Combination for Voltage Programing. In-
8 and 9, and 10 and 11.
spect the terminal board and remove the link between
CAUTION
terminals 1 and 2. Be sure that links are securely fas-
Do not operate power supply with links re-
tened between terminals 3 and 4,5 and 6,8 and 9, and
moved from terminals 3 and 4 and 5 and 6
10 and 11.
unless a load is connected by individual con-
CAUTION
nections to each of these terminals as speci-
Do not operate the power supply with link re-
fied in paragraph 2-11.
moved from terminals 1 and 2 unless a
Section Il. OPERATING INSTRUCTIONS
2-6. Controls and Indicators
Function
Control or indicator
a. Front Panel Controls and Indicators (fig. 2-2).
Negative front panel output con-
(-) terminal El . . . . . . . . . . . . .
nection.
Function
Control or indicator
Ground front panel output con-
GND terminal E3 . . . . . . . . . . .
Indicates output voltage.
Voltmeter M2 . . . . . . . . . . . . . .
nection.
Ammeter Ml . . . . . . . . . . . . . . . Indicates output current.
When lit, indicates power sup-
CUR MODE indicator DS3 . . . .
POWER ON indicator
ply is in current mode.
DSl . . . . . . . . . . . . . . . . . . . . . . When lit, indicates primary
Provides fine current output
power is applied.
CUR ADJ fine control. . . . . . . .
adjustment.
POWER switch Sl . . . . . . . . . . In ON position, connects 115-
Provides coarse current output
CUR ADJ coarse control. . . . . .
volt ac, single-phaae power to
adjustment.
power supply,
When lit, indicates power sup-
VOLT MODE indicator DS 2 . . .
Positive front panel output con
(+) terminal E2 . . . . . . . . . . . .
ply is in voltage mode.
nection.
Figure 2-3. Power Supply PP-3940A/G, Rear Panel.
2-3
Change 1
