Multilin 469 Motor Management Relay ... - GE Digital Energy

CHAPTER 1: GETTING STARTED
1.2 Using the Relay
1.2.1 Menu Navigation
The relay has three types of display messages: actual value, settings, and target messages.
A summary of the menu structure for settings and actual values can be found at the
beginning of chapters 5 and 6, respectively.
Settings are programmable settings entered by the user. These types of messages are
located within a menu structure that groups the information into categories. Navigating
the menu structure is described below.
Actual values include the following information:
1. Motor and System Status:
a. Motor status either stopped, starting, or running. It includes values such as motor
load, thermal capacity used, motor speed, and instantaneous values of power
system quantities.
b. The status of digital inputs.
c. Last trip information, including values such as cause of last trip, time and date of
trip, motor speed and load at the time of trip, pre-trip temperature measurements,
pre-trip analog inputs values, and pre-trip instantaneous values of power
system quantities.
d. Active alarms.
e. Relay date and time.
f. Present blocking conditions.
g. General system status indication including the status of output relays, active
pickup, alarm and trip conditions.
2. Metering Data:
a. Instantaneous current measurements including phase, differential, unbalance,
ground, average, and motor load.
b. RTD Temperatures including hottest RTDs.
c. Instantaneous phase to phase and phase to ground voltages (depending on the
VT connections), average voltage, and system frequency.
d. Motor Speed
e. Power Quantities including apparent, real and reactive power.
f. Current and power demand including peak values.
g. Analog inputs
h. Vector information.
3. Motor Learned Data:
a. Learned and last acceleration time.
b. Learned and last starting current.
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–3