GE 269Plus Instruction Manual page 86

Motor management relay
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SETPOINTS MODE
TABLE 3–3: 269PLUS SETPOINTS (SHEET 13 OF 25)
PAGE
LINE INFORMATION LINE
5
14
DEFEAT LEARNED
COOL TIME? XX
This setpoint tells the 269Plus to use the learned motor cooling time values. (see Actual
Vales page 6). When learned values are not used, the user entered values are used.
Range: YES (default cool times); NO (learned cool times from Actual Values page 6)
NOTE
3
Factory Value = YES
5
15
ENTER RUNNING
COOL TIME = XX MINUTES
This setpoint is seen when the learned motor cooling times are not used. It represents the
time for the thermal memory to discharge from 100% to 0% with the motor running in a non-
overload condition:
Range: 1 to 45 minutes in steps of 1 minute (cooling time in minutes)
Factory Value = 15 minutes
5
16
ENTER STOPPED
COOL TIME = XXX MINUTES
This setpoint is seen when the learned motor cooling times are not used. This value
represents the time for thermal memory to discharge from 100% to 0% with the motor
stopped. The OVERLOAD TRIP lockout time is 85% of this value (see Section 3.22).
Range: 5 to 213 minutes in steps of 1 minute (cooling time in minutes)
Factory Value = 30 minutes
5
17
RTD10 AMBIENT SENSOR ?
XXX
This setpoint is used to select RTD10 as an ambient air temperature sensor; see Section
3.22. This message is not displayed if the
line 3) is set to
Range: YES, NO
Factory Value = NO
5
18
ENABLE DIFFERENTIAL
TRIP?
This setpoint enables or defeats the Differential Trip function. The 269Plus does not have an
87 element but can accept contact closures from an external differential relay at Terminals 48
& 49 to issue a differential trip. When this value is
has no effect. Changing this setpoint to
when Terminals 48 and 49 are open-circuited and the [RESET] key is pressed, i.e. the
differential trip is automatically reset.
Range: YES (enabled); NO (disabled)
Factory Value = NO
3-
30
Courtesy of NationalSwitchgear.com
This setpoint should not be changed unless the 269Plus has learned
reasonable motor cool down times.
.
N O
XXX
269Plus Motor Management Relay
A R E T H E R E A N Y R T D C O N N E C T E D ?
, a contact closure at Terminals 48 & 49
N O
after a differential trip has the same effect as
N O
3 SETUP AND USE
setpoint (page 2,
GE Power Management

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