Eaton Cutler-Hammer Digitrip RMS 510 - Powernetcommunicationswiring Checkout

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7.4
PowerNet
CommunicationsWiring
Checkout
The Trip Unit,
External
Harness, and
Cell Harness
wiring
for PowerNet
communications
can be
confirmed
as follows.
1. Place
the Breaker
in Test
(Disconnected)
position.
2. Remove
the customer
twisted
pair
connections
COMMI
,
COMM2.
3.
Remove
the external
120 VAC
power.
4. Connect
an Ohm
meter to COMMI
and
COMM2
on the Terminal
Block.
5. Keep
the External
Harness connected.
6. The Ohm
meter should
read approximately
1 to 2 ohms.
7. lf
(6)
is OK, then
the wiring is confirmed.
Remove the
Ohm meter and
replace
wiring
removed
in Steps
(2)
and
(3).
EIf.il
Etfeclive 9/01