Further Checking Of The Relay With Ac Power; Checking Data Communications; Entering Relay Settings; Checking Contact Outputs - Eaton MP-3000 Instruction Leaflet

Page 7-2

7.4 Further Checking of the Relay with AC Power

• Apply ac power to the relay and optional URTD.
• The MP-3000 will quickly initialize and display its status, usually
READY—3, unless the relay sample has been subjected to an
unusual combination of settings and recent prior service or testing.
Usually, one or more output relays can be heard to click as they are
energized.
• The Protection LED on the faceplate should light.
• If the URTD is connected, push the Monitor mode button and
navigate to the MONT RTD page. If the MONT RTD page cannot be
accessed, the URTD module is dead or not communicating with the
relay at all. Troubleshoot communications wiring or optical fiber, and
URTD power.
• Check the 11 temperature display lines. Each connected RTD
should display an appropriate value (e.g. 25 at room temperature).
Non-functioning or unused RTD inputs display a — character for a
value.

7.5 Checking Data Communications

• If the relay is equipped with a PONI, check to confirm that the
communications network is connected.
• Visit the PowerNet or other host and check the monitoring displays
for the particular MP-3000.
• Confirm that you are viewing displays for the correct relay. This is
easily done by disconnecting and reconnecting the network
connector.
• If communications can't be established, check for address conflicts
on the network (multiple devices set to the same address) or
incorrect setting of the address switches on the PONI.

7.6 Entering Relay Settings

• Make a copy of Table 4.3 as a worksheet for recording setting
choices.
• Read Sections 5 and 9 carefully for guidance in selecting settings.
• If the MP-3000 is to talk to an older IMPACC system in the IQ2 EN
mode, see Section 10 for setting restrictions.
• If desired, PowerNet or PowerPort data communications can be
used to download a preconfigured setting record to the relay from a
disk file or from a convenient worksheet on the host display.
IMPACC cannot be used to enter settings to an MP-3000.
• If electronic communication is not used, enter the settings through
the front panel in Program mode, using the Program button behind
the security door.
• After settings have been entered, exit the program mode by pushing
the Program button again.
• Verify that the settings have been correctly entered using the View
SP mode button.
• Reconfirm that the motor nameplate values agree with the corre-
sponding relay settings.
• Reconfirm that the ratios of the phase and ground Cts in the gear
agree with the PCT and GCT settings of the relay.
IL17562BH04
THE MP-3000 HAS 154 SETTINGS, WHICH ARE EASY TO CON-
FUSE. DO NOT ATTEMPT TO ENTER VALUES WITHOUT USING
THE APPROPRIATE SET POINT RECORD SHEET. IMPROPER
OPERATION AND/OR PERSONAL INJURY COULD RESULT IF THIS
PROCEDURE IS NOT FOLLOWED.

7.7 Checking Contact Outputs

BE AWARE OF WHETHER CONTROL POWER IS APPLIED TO THE
OUTPUT CONTACTS BEFORE TESTING. AVOID UNEXPECTED
OPERATION OF THE MOTOR CONTACTOR OR OTHER CON-
TROLLED DEVICES DURING TESTING. PERSONAL INJURY OR
DAMAGE COULD RESULT.
• Determine the mode of each of the output relays. See settings
• If possible and safe, use a live test of the actual wiring or devices
• If contacts are energized, a voltmeter can be used to check. Use an
• With MP-3000 power applied, each output relay set for Mode 1
• Each relay set for Mode 2 should have its NO contact closed, and its
• Enter Program mode. Navigate to Page 13, SP TEST. Settings
• Push the Reset button, as explained in Section 5, to toggle the state
• Exit Program mode.

7.8 Checking the Complete Motor Drive System

THE CONTACTOR CONTROL CIRCUIT IS TO BE RECONNECTED.
AT THIS TIME THE MOTOR ASSOCIATED WITH THE APPLICATION
CAN BE STARTED. IT IS IMPORTANT TO ENSURE THAT ALL
SAFETY PRECAUTIONS ASSOCIATED WITH ROTATING EQUIP-
MENT AND THE ASSOCIATED DRIVEN MECHANISM BE TAKEN.
FAILURE TO DO SO CAN RESULT IN SERIOUS OR FATAL INJURY
AND/OR EQUIPMENT DAMAGE.
• Disconnect all ac power from the system.
• Reconnect the contactor lead to MP-3000 trip relay terminal 12.
• Check all rotating components and driven mechanisms associated
• Clear away any loose or foreign objects.
• Clear all personnel from the area of the motor and driven mecha-
For more information visit: www.cutler-hammer.eaton.com
CAUTION
DANGER
P12L1 through P12L4.
operated by the MP-3000 output contacts to verify contact
operation and check wiring.
ohmmeter or continuity checker only on dead, disconnected circuits.
should have its NO contact open and its NC contact closed.
NO contact open.
P13L2 to P13 L5 can be used to set up each of the output relays for
test.
of each of the relays in turn. Check the switching of the output relay,
and the energization of controlled circuits if possible.
DANGER
with the motor for secure connections.
nisms.
Effective 10/02