Eaton MP-3000 Motor Protection Relay Guide

P4L4 JMAR stall alarm operation delay 0-240 seconds stall alarm holding time

P4L5 ULA underload alarm 6-90% FLA, OFF underload alarm level

P4L6 ULAR underload alarm operation delay 0-240 seconds underload alarm holding time

P4L7 UBA phase imbalance alarm 4-40%, OFF phase imbalance alarm level

P4L8 UBAR unbalance alarm operation delay 0-240 seconds unbalance alarm holding time

5.6 Startup Control Settings (Page 5)

Setting Description Scope Description

P5L1 ST/T Unit time startup times 1-10 times Maximum allowed startup times

P5L2 T/ST counting time window 1-240 minutes, time window for OFF startup count statistics

P5L3 TBS startup interval time 1-240 minutes, minimum interval between two OFF startups

P5L4 NOCS cold start times 1-5 times allowed continuous cold start times

P5L5 TRNC startup switching current 10-300% FLA current threshold from START to RUN

P5L6 TRNT startup switch timeout 0-1200 seconds maximum duration of startup state

P5L7 TRN switching event TIME/I/T+C/T/C defines the conditions for switching to occur

P5L8 INSQ incomplete sequence time 1-240 seconds, OFF process feedback waiting time

P5L10 LAT long acceleration time 1-1200 seconds, OFF high inertia load acceleration time

P5L11 ZSW zero speed switch ON/OFF zero speed switch function enabled/disabled

P5L12 ABK anti reverse delay 1-3600 seconds, from OFF stop to allowed restart time

5.7 Output Relay Configuration (Pages 8-10)

The MP-3000 has four output relays:

Trip relay: All trip events are directed to this relay

Alarm relay: typically used for all alarm conditions

Aux 1 relay: programmable and can also be used for load shedding function

Aux 2 relay: programmable and can also be used for switching control

Each relay can be configured as Mode 1 or Mode 2:

Mode 1: Relay loses power when normal, gains power when tripped

Mode 2: Power on when the relay is powered on, power off when a trip event occurs (fail safe mode)

The large number of settings (P8L1-P10L23) in Pages 8-10 are used to select which events activate the corresponding relays.

5.8 System Configuration (Page 12)

Setting Description Options Description

P12L1 Trip Relay Mode MODE1/MODE2 Configure Trip Relay Operation Mode

P12L2 alarm relay mode MODE1/MODE2 configuration alarm relay operation mode

P12L5 I ² t Reset MAN I2T/AUTO I2T Manual or Automatic Reset Thermal Overload

P12L6 Run time programming: RUN PGM/STOP PGM. Does it allow parameter modification during runtime

P12L7 Emergency Bypass EMRG EN/EMRG DIS Enable/Disable Emergency Bypass Function

P12L16 Internal Diagnostic Action RLYF TRP/ALM/T+A Action during Internal Fault

Is the P12L18 armed/disarmed ARMED/DISARMED trip relay enabled

Disarmament mode: Used for debugging new relays or settings, where the trip relay is prevented from operating, but all protection functions are running internally. The monitor will scroll to display the warning message 'DISARMED'.

Chapter 6 Installation and Wiring

6.1 Requirements for installation location

Vertically installed on a flat panel

The location should be kept away from water, chemicals, dust, overheating, and vibration

The panel should protect users from accidental contact with live terminals on the back

Recommend using 0.125 inch (3.18mm) steel plate, firmly grounded

6.2 Panel Openings

The opening size is compatible with the previous generation IQ 1000 II. MP-3000 retains the original 6-hole fixed position, but it is recommended to add 4 new hole positions.

Secure using the included self tapping plastic screws with a torque of 8 in lbs (0.9 N-m).

6.3 Installation of URTD module

The URTD module can choose from:

Back installation: Use URTD mounting bracket to fix on the back of MP-3000

Remote installation: Install near the motor to shorten the distance of RTD wiring

Advantages of remote installation: URTD transmits temperature data back to MP-3000 through a single fiber optic cable (recommended) or a 3-wire communication line, with a maximum fiber optic connection distance of 400 feet (121.9 meters).

6.4 Installation of PONI Communication Module

The PONI module is always installed on the back of the MP-3000:

When there is no URTD: use the included PONI mounting bracket

When there is URTD: PONI is directly installed on the back of the URTD module

6.5 General Requirements for Wiring

Important warning: Before wiring, the motor starter, MP-3000, and all remotely connected power sources must be disconnected.

Grounding requirements:

Terminal 5 is connected to the nearest reliable grounding point using # 14 AWG or thicker wire

Do not use current carrying conductors or neutral conductors for grounding

Terminal 5 is internally connected to the casing and conductive panel

6.6 CT wiring

CT ratio selection:

5A CT: At 100% FLA, the CT secondary current should be between 3.5-4A, with an ideal value of 3.75A

1A CT: At 100% FLA, the CT secondary current should be between 0.7-0.8A, with an ideal value of 0.75A

Precautions for CT wiring:

Pay attention to phase identification and sequence, check the consistency of three-phase polarity

Keep the CT wiring as short as possible and use sufficiently thick wires

Each CT circuit must have only one grounding point

6.7 Power Wiring

Terminals 4 and 7 are connected to a 120 Vac or 240 Vac control power supply. MP-3000 automatically adapts to two voltages.