Lambda Genesys GENH 750W - Local and Remote Sensing Configuration

83-507-5002 Rev. A
25
WARNING
OUTPUT TERMINAL GROUNDING
There is a potential shock hazard at the RS232/RS485 and the IEEE ports when
using power supplies with rated or combined voltage greater than 400V with the
Positive Output of the power supplies grounded. Do not connect the Positive out-
put to ground when using the RS232/RS485 or IEEE under the above conditions.
3.10 LOCAL AND REMOTE SENSING
The rear panel J2 sense connector is used to configure the power supply for local or remote
sensing of the Output Voltage. Refer to Fig.3-14 for sense connector location.
3.10.1 Sense wiring
3.10.2 Local sensing
The power supply is shipped with the rear panel J2 sense connector wired for local sensing of the
Output Voltage. See Table 3-4 for J2 terminals assignment. With local sensing, the Output Volt-
age regulation is made at the output terminals. This method does not compensate for voltage
drop on the load wires, therefore it is recommended only for low load current applications or
where the load regulation is less critical.
Fig.3-14: Sense connector location
Terminal Function
J2-1 Remote
p
ositive sense
(
+S
)
J2-2 Local
p
ositive sense. Connected internall
y
to the
p
ositive out
p
ut terminal
(
+LS
)
.
J2-3 Not connected
(
NC
)
J2-4 Local ne
g
ative sense. Connected internall
y
to the ne
g
ative out
p
ut terminal
(
-LS
)
.
J2-5 Remote ne
g
ative sense
(
-S
)
.
Table 3-4: J2 terminals
WARNING
There is a potential shock hazard at the sense connector when using a powe
r
supply with a rated Output Voltage greater than 40V. Local sense and remote
sense wires should have a minimum insulation rating equivalent or greater than
the maximum Output Voltage of the power supply. Ensure that the connections at
the load end are shielded to prevent accidental contact with hazardous voltages.