Setpoints Mode - GE 169 Instruction Manual

Motor management relay
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GE Power Management
3 SETUP AND USE

3.4 SETPOINTS Mode

In SETPOINTS mode any or all of the motor trip/alarm setpoints may be either viewed or altered. This mode is
divided into six separate pages of data each of which contains a different group of relay setpoints.
To enter SETPOINTS mode the SET POINTS key must be pressed. When in this mode, if no key is pressed for
more than four minutes, the display will automatically go into ACTUAL VALUES mode as explained in section 3.3.
To return to SETPOINTS mode the SET POINTS key must be pressed. When this key is pressed the following flash
message will appear on the display,
SETPOINTS HAS SIX
PAGES OF DATA
Then the display will show,
PAGE 1: SETPOINT VALUES
MOTOR AMPS SETPOINTS
which is the first line of the first page of SETPOINTS mode. The PAGE UP, PAGE DOWN, LINE UP, and LINE
DOWN keys (see section 3.1) may then be used to view all of the SETPOINTS data.
When setpoints are to be changed, the VALUE UP, VALUE DOWN, STORE, and CLEAR keys (see section 3.1) are
used. The Access terminals must first be shorted together (see section 2.17). The PAGE UP, PAGE DOWN, LINE
UP, and LINE DOWN keys are used to display the setpoints that are to be changed. The setpoints themselves are
changed by pressing the VALUE UP or VALUE DOWN keys until the desired setpoint value is reached. To return the
setpoint to its original value the CLEAR key can be used. When the setpoint is adjusted to its proper value the
STORE key should be pressed in order to store the setpoint into the 169's internal memory. Once the STORE key is
pressed the flash message,
new setpoint stored
will appear on the display and the new setpoint value will be used by the 169 relay.
If an attempt is made to store a new setpoint value without the Access terminals shorted together the new value will
not be stored and the flash message,
ILLEGAL ACCESS
will appear on the display. To make the setpoints tamperproof the Access terminals should be shorted together only
when setpoints are to be changed.
Setpoints may be changed while the motor is running; however it is not recommended to change important
protection parameters without first stopping the motor.
Setpoints will remain stored indefinitely in the 169 relay's internal non-volatile memory even when control power to
the unit is removed.
All six pages of data and the lines in each page are as shown in Table 3-3. Also shown are the ranges and
increments for each setpoint. It should be noted that the 169 relay's motor protection parameters are based on the
data entered by the user. Thus this data must be complete and accurate for the given system.
41

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