Page 4 I.L. 17562
PR 0.3 Effective 8/99
• Differential trip input
• Emergency override clears blocks to motor restarting (if enabled)
• Program settings while motor runs, with controlled changeover (if enabled)
• Disarmed mode for commissioning and checking in a running process.
1.1 Replacing the IQ1000 II with MP-3000
The MP-3000 Motor Protection Relay has been designed to serve as a direct replacement for the
prior-generation Westinghouse or Cutler-Hammer IQ 1000 II. The cutout and mounting are
compatible. The relay terminal configuration and wiring connections are similar except for the
wiring of the two discrete inputs. These inputs must be activated by 120 V only. For 240 Vac
applications the remote common, terminal 6, has been changed to “Discrete Source” providing a
120 Vac source voltage for the reading contacts. Refer to Section 6, Installation and Wiring for
more details.
The IQ 1000 II had a dedicated output assigned for the transition function and a discrete input
assigned for incomplete sequence on transition. The MP-3000’s inputs and outputs are user
configurable for a variety of functions. If the Transition and Incomplete Sequence functions are
enabled, then the input and output corresponding to the IQ 1000 II configuration is assigned to
these functions exclusively. These settings will keep the same wiring connections when
replacing the IQ1000II with an MP-3000. If the IQ 1000 II communicated with a host computer,
see Section 10 for guidance on keeping IQ 1000 II data communications.
1.2 MP-3000 Enhancements
The MP-3000 Motor Protection Relay incorporates the field proven motor thermal models and
sequence component measurement techniques that were pioneered in the IQ 1000 and IQ 1000
II relay thermal models. However, the MP-3000 adds over 50 enhancements and new features.
In addition, the new relay has new hardware with more computational power, more data storage
capability, and greater immunity to electrical noise, voltage surges, and supply dips or
interruptions. Other significant enhancements and new features include:
1 The MP-3000 Motor Protection Relay meets stringent UL 1053 Standards for Ground Fault
Protection Devices.
2 New power supply that can operate continuously at 55% of nominal supply voltage, and can
ride through a voltage sag or loss for 30 cycles without dropping out and taking the motor off
line.
3 Optional Quick Release Drawout Case that makes removal and replacement fast and easy.
4 New Armed/Disarmed feature for trip free installation with Quick Release Drawout Case.
5 User selectable trip or alarm only on relay internal failure detection.
6 Real time clock for date and time stamping of trips, alarms and events (Y2K compliant).
7 Expanded memory for extensive recording and logging of events, trips, alarms, history, and
motor starting current profiles.
8 New motor starting profile plot versus protection limits.
9 New easy-to-use faceplate and user interface. Settings and data are organized into pages
under 6 main modes. The modes are Default (motor state), Monitor, View Settings, History,
Logs, and Program (change setpoints).
10 Intel-I-Trip Intelligent Overload Protection with adaptive trip characteristics based on RTD
readings and motor operating history.
11 RTD diagnostics and communications error checking for additional security against operation
from RTD failures.
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