ABB Relion 615 series Applications Manual page 35

1MRS756885 A
REM615
Application Manual
period of time. This can lead to stress for the machine and other apparatuses. The
remanence voltage protection waiting time can be set to a timer function TPSGAPC1.
The restart inhibit is also activated when there is
• An active trip command or
• Motor startup supervision has issued lockout or
• Motor unbalance function has issued restart blocking or
• An external restart inhibit is activated by a binary input (X130:BI1).
GUID-BAC6545B-0B21-499C-8930-85C6C9C66E6F V1 EN
Figure 12: Motor startup supervision
With the motor startup supervision function (STTPMSU1) the starting of the motor
is supervised by monitoring three-phase currents or the status of the energizing
circuit breaker of the motor. The motor speed switch indication can be used to
determine the locked rotor situation. If the motor is running, the speed switch
activates the binary input (X110:6-7).
When the emergency start request is activated by ESMCAPC1 and STTPMSU1 is
in lockout state, which inhibits motor starting, the lockout is deactivated and
emergency starting is available.
The upstream blocking from the motor startup is connected to the output SO1
(X110:14-15-16). The output is used for sending a blocking signal to the relevant
overcurrent protection stage of the IED at the infeeding bay.
The motor running time counter (MDSOPT1) provides history data since last
commissioning. The counter counts the total number of motor running hours and is
incremented when the energizing circuit breaker is closed. The alarm of the
runtime counter is connected to alarm LED 9.
Section 3
REM615 variants
29