To connect wires to the terminal block that serves three PSMs:
a. Insert the grounding wire into the grounding point labeled
GND
.
b. Insert the wire labeled
L1
into the input terminal labeled
A2
.
c. Insert the wire labeled
L2
into the input terminal labeled
B2
.
d. Insert the wire labeled
L3
into the input terminal labeled
C2
.
e. Insert the wire labeled
N
into the input terminal labeled
N2
.
WARNING:
To protect power supplies from input voltage that might be
caused by miswired PDMs, before reinstalling the metal cover to the wiring
compartment, apply AC voltage to the PDM (with disengaged PSM) to
make sure that two LEDs on the PDM are lit green and that the AC voltage
between AC terminal blocks A1-N1, B1-N1, C1-N1, A2-N2, B2-N2, and C2-N2
for three-phase wye PDM is not more than 264VAC when measured with
a DVM. Then turn off the AC breaker, de-energizing the PDM, and install
the metal cover and engage all AC PSMs.
NOTE:
The color of each AC power wire might vary.
NOTE:
Three-phase wye AC wire assembly kits can be purchased from
Juniper Networks.
Table 6: Supported Three-Phase Wye AC Wire Gauge
Description
Wire Gauge
5 conductor wires, each wire is 10-AWG
5 x 10-AWG or equivalent
NOTE:
We recommended that you use the proper gauge wire in order for
the cable clamps to hold the AC cables. Using smaller gauge wiring will
result in the cable clamps not tightening properly.
WARNING:
Power connections must be performed by a licensed electrician
only.
11.
Verify that the power cable connections are correct.
12.
Screw the retaining nut onto the AC power cord to secure it to the metal wiring
compartment.
51
Copyright © 2017, Juniper Networks, Inc.
Connect Power to a Three-Phase Wye AC Power Distribution Module
