Page 13-4
Effective 10/02For more information visit: www.cutler-hammer.eaton.comIL17562BH04
13.4 Wiring and Setup
WARNING
ENSURE THAT THE INCOMING AC POWER SOURCES ARE
DISCONNECTED BEFORE PERFORMING ANY WORK ON THE
MP-3000 PROTECTIVE RELAY OR ITS ASSOCIATED EQUIPMENT.
FAILURE TO OBSERVE THIS PRACTICE COULD RESULT IN
SERIOUS INJURY, DEATH AND/OR EQUIPMENT DAMAGE.
The following material supplements the information in Section 6.2.
Refer to Figures 13.4 through 13.7 for the MP-3000 drawout typical
connection and wiring diagrams. Note the following:
1. Direct wire connections to the terminal blocks must be sizes #14
AWG to #10 AWG. The appropriate sized spade and ring lugs
can also be used to accommodate the wires.
2. In each terminal block, you must wire the lower tier terminals
before the upper tier terminals.
3. All contacts are shown in the deenergized position.
NOTE: Each output relay may be configured for mode 1 or mode 2
operation. In mode 2, the relay is energized when control
power is applied to the MP-3000. For mode 2 operation, the
contacts will normally be in the opposite state from that
shown. See Section 13.5.
4. The INCOM communications LED can be seen through a hole
in the outer case on the left side.
NOTE: All wiring must conform to applicable federal, state,
and local codes.
13.4.1 Fiber Optic Installation
The URTD fiber optic cable is connected directly to the inner chassis.
The following instructions describe the proper installation procedure:
1. Remove the relay inner chassis from the outer case assembly.
2. Route the fiber optic cable through the grommeted hole in the
back of the outer case – see Figure 13.1.
3. The fiber should be long enough to extend 2 – 3 inches out of the
front of the case.
4. Carefully hold the fiber to the left inner side of the case and insert
the relay inner chassis half way into the case.
5. Connect the fiber cable to the fiber optic connector on the relay
inner chassis. The fiber plug on the cable has a latching
mechanism that locks the fiber cable into the fiber outlet.
6. Carefully push the relay inner chassis the rest of the way into the
case until the quick release latches engage.
NOTE: Be careful not to kink or bend the fiber cable when inserting
the relay inner chassis.
Fiber cable disconnection
To remove the relay inner chassis from the case when the fiber cable
is used perform the following procedure:
1. Unlatch the inner chassis from the case and remove half way out.
2. Disconnect the fiber cable by squeezing the connector latch and
gently pull the fiber plug from the fiber socket.
NOTE: Failure to disconnect the fiber cable from the relay inner
chassis can result in damage to the fiber and possibly the fiber
socket.
3. Continue to remove the relay inner chassis.
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