ABB RELION REX640 - 4.10.7 Signals; 4.10.7.1 STTPMSU Input signals; 4.10.7.2 STTPMSU Output signals

n specified maximum allowed number of motor start-ups
t start-up time of the motor (in seconds)
margin safety margin (~10...20 percent)
Setting of Counter Red rate
Counter Red rate is calculated by
∆ t
t
t
s
reset
∑
=
(Equation 284)
t specified start time of the motor in seconds
t
reset
duration during which the maximum number of motor start-ups stated by the
manufacturer can be made; time in hours
4.10.7 Signals
4.10.7.1 STTPMSU Input signals
Table 1036: STTPMSU Input signals
Name Type Default Description
I3P SIGNAL - Three-phase currents
BLOCK BOOLEAN 0=False Block of function
BLK_LK_ST BOOLEAN 0=False Blocks lock out condi-
tion for restart of mo-
tor
CB_CLOSED BOOLEAN 0=False Input showing the
status of motor cir-
cuit breaker
STALL_IND BOOLEAN 0=False Input signal for show-
ing the motor is not
stalling
ST_EMERG_ENA BOOLEAN 0=False Enable emergency
start to disable lock
of start of motor
Protection functions 1MRS759142 F
1102 REX640
Technical Manual