5.6 Emergency start-up ESMGAPC (ANSI EST,62)
5.6.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Emergency start-up ESMGAPC ESTART EST,62
5.6.2 Function block
Figure 679: Function block
5.6.3 Functionality
An emergency condition can arise in cases where the motor needs to be started
despite knowing that this can increase the temperature above limits or cause a
thermal overload that can damage the motor. The emergency start-up function
ESMGAPC allows motor start-ups during such emergency conditions. ESMGAPC is
only to force the protection relay to allow the restarting of the motor. After the
emergency start input is activated, the motor can be started normally. ESMGAPC
itself does not actually restart the motor.
The function contains a blocking functionality. It is possible to block function
outputs, timer or the function itself.
5.6.4 Analog channel configuration
ESMGAPC has one analog group input which must be properly configured.
Table 1139: Analog inputs
Input Description
I3P Three-phase currents
See the preprocessing function blocks in this document for the possible
signal sources.
Improper analog channel configuration causes a validation error if the analog
channels are not completely configured or they do not match with certain settings.
For troubleshooting, check the contents of this chapter and also the preprocessing
Protection related functions
1MRS759142 F
1190 REX640
Technical Manual
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