Manual Organization; Using The Relay; Menu Navigation - GE 469 Instruction Manual

469
Motor Management Relay

Manual Organization

Menu Navigation

1–2
Reading a lengthy instruction manual on a new product is not a task most people
enjoy. To speed things up, this introductory chapter provides a step-by-step tutorial
for a simple motor application. Important wiring considerations and precautions
discussed in Electrical Installation on page 3–9 should be observed for reliable
operation. Detailed information regarding accuracy, output relay contact ratings,
and so forth are detailed in Specifications on page 2–5. The remainder of this
manual should be read and kept for reference to ensure maximum benefit from the
469 Motor Management Relay. For further information, please consult your local
sales representative or the factory. Comments about new features or modifications
for your specific requirements are welcome and encouraged.
Setpoints and actual values are indicated as follows in the manual:
A3 LEARNED DATA AVERAGE MOTOR LOAD
This 'path representation' illustrates the location of an specific actual value or
setpoint with regards to its previous menus and sub-menus. In the example above,
the
AVERAGE MOTOR LOAD LEARNED
sub-menu, which itself is an item in the
MOTOR LOAD
an item of .
ACTUAL VALUES
Sub-menu levels are entered by pressing the MESSAGE
submenu, the MESSAGE or ESCAPE key returns to the previous sub-menu. The
MESSAGE and MESSAGE
menu. The display indicates which keys can be used at any given point.

Using the Relay

The relay has three types of display messages: actual value, setpoint, and target
messages. A summary of the menu structure for setpoints and actual values can be
found at the beginning of chapters 5 and 6, respectively.
Setpoints 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, unbal-
ance, 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.
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AVERAGE MOTOR LOAD LEARNED
actual value is shown to be an item in the
A3 LEARNED DATA
keys are used to scroll through the settings in a sub-
Using the Relay
AVERAGE
menu, which is
or ENTER key. When inside a
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