TDK-Lambda GENESYS 10KW - Chapter 3: Installation; Remote Sensing Details

83
-
530
-
000 Rev.
G
23
Terminal
Function
J2
-
1
Remote positive sense (+S)
J2
-
2
Local positive sense. Connected internally to the positive output terminal (+LS).
J2
-
3
Not connected (NC)
J2
-
4
Local negative sense. Connected internally to the negative output terminal (
-
LS).
J2
-
5
Remote negative sense (
-
S).
Table 3
-
4: J2 terminals
3.10.3
Remote sensing
Use remote sense where the load regulation at the load end is critical. In remote sense, the power su
p-
ply will compensate for voltage drop on the load wires. Refer to the power su
pply specif
i
cations for the
maximum voltage drop on load wires. The voltage drop is subtracted from the total voltage avai
l
able at
the output. Follow the instructions below to configure the power supply for remote sen
s
ing:
1.
Ensure that the AC On/Off is in t
he Off position.
2.
Remove the local sense jumpers from J2.
3.
Connect the negative sense lead to terminal J2
-
5 (S) and the positive sense lead to term
i
nal J2
-
1(+S) of the J2 mating connector. Ensure that the J2 mating connector is plugged securely into the
rear
panel sense connector, J2.
4.
Turn On the power supply.
Notes:
1.
If the power supply is operating in remote sense and either the positive or negative load wire is not
connected, an internal protection circuit will activate and shut down the power supply. To re
sume
operation, turn the to the Off position, connect the open load wire, and turn On the power supply.
2.
If the power supply is operated without the remote sense lines or local sense jumpers, it will co
n-
tinue to work, but the output voltage regulation will
be degraded. Also, the OVP circuit may activate
and shut down the power supply.
3.10.4 J2 sense connector technical information
-
J2 connector type: MC 1.5/5
-
G
-
3.81, Phoenix.
-
Plug type: MC 1.5/5
-
ST
-
3.81, Phoenix.
-
Wire AWG; 28 up to 16.
-
Stripping length: 7mm
(0.28 inches).
-
Tightening torque: 0.22
-
0.25Nm (1.95
-
2.21Lb
-
Inch.)
WARNING
There is a potential shock hazard at the sense point when using power supply
with a rated output v
oltage greater than 40V. Ensure that the connections at the
load end are shielded to prevent accidental contact with hazardous voltages.
CAUTION
When us
ing shielded sense wires, ground the shield
in one place only. The location can be the power su
p-
ply chassis or one of the output terminals.