Remote sense – AMETEK ReFlex User Manual
Page 189
Fixed Power DC Power Supply
ReFlex Power™
5-20
M380056-01 Rev J
Table 5-3. FPDC DC Output Connector Pinout
PIN
Name
Description
1
+15V
+15V Positive Output derived after disconnect relay
2
+15V RTN
+15V Return
3
-15V
-15V Negative Output derived after disconnect relay
4
-15V RTN
-15V Return
5
+5V S+
+5V Positive Sense connected after local-remote sense relay
6
-5V S-
-5V Negative Sense connected after local-remote sense relay
7
+15V S+
+15V Positive Sense connected after local-remote sense relay
8
-15V S-
-15V Negative Sense connected after local-remote sense relay
9
CHAS GND
Chassis ground
10
+15V
+15V Positive Output derived after disconnect relay
11
+15V RTN
+15V Return
12
-15V
-15V Negative Output derived after disconnect relay
13
-15V RTN
-15V Return
14
+5V S RTN
+5V Sense Return
15
-5V S RTN
-5V Sense Return
16
+15V S RTN
+15V Sense Return
17
-15V S RTN
-15V Sense Return
A1
+5V
+5V Positive Output derived after disconnect relay
A2
+5V RTN
+5V Return Output
A3
-5V
-5V Positive Output derived after disconnect relay
A4
-5V RTN
-5V Return
DC Output Connector Accessories
•
·AMETEK P/N 5380449-01, FPDC Module, 9ft. Unterminated DC Output Cable Assembly.
•
·
AMETEK
P/N 5380449-03, FPDC Module, Right Angle, 9ft. Unterminated DC Output Cable
Assembly.
R
EMOTE
S
ENSE
Remote sensing is used to compensate for the voltage drop that occurs across
the wires connecting the load to the output of the FPDC power supply module.
A separate pair of wires for each voltage output is routed to measure the
respective voltage at the load terminals where precise regulation of the output
voltage is desired.
The remote sense leads are connected at the DC OUTPUT connector, J2, on
the front panel of the module. Connect the SNS terminal to the corresponding
voltage terminal, and the SNS-RTN terminal to the corresponding voltage
return terminal.
Special care is required in routing the sensing leads to prevent noise pickup or
coupling to the power leads; refer to the section, Noise and Impedance Effects.
The sense leads should be a twisted-pair of at least AWG #22 wire, and may
require shielding in high noise environments. Connect the shield to the shield