4.10.6 Signals
Table 651: 66/51LRS Input signals
Name
Type Default Description
I_A SIGNAL 0 Phase A current
I_B SIGNAL 0 Phase B current
I_C SIGNAL 0 Phase C current
BLOCK BOOLEAN 0=False Block of function
BLK_LK_ST BOOLEAN 0=False Blocks lock out condition for restart of motor
CB_CLOSED BOOLEAN 0=False Input showing the status of motor circuit breaker
STALL_IND BOOLEAN 0=False Input signal for showing the motor is not stalling
ST_EMERG_ENA BOOLEAN 0=False Enable emergency start to disable lock of start of motor
Table 652: 66/51LRS Output signals
Name Type Description
OPR_IIT BOOLEAN Trip signal for thermal stress.
OPR_STALL BOOLEAN Trip signal for stalling protection.
MOT_START BOOLEAN Signal to show that motor startup is in progress
LOCK_START BOOLEAN Lock out condition for restart of motor.
4.10.7 Settings
Table 653: 66/51LRS Group settings (Basic)
Parameter
Values (Range) Unit Step Default Description
Motor start-up A 1.0...10.0 xIn 0.1 2.0 Motor starting current
Motor start-up time 1...80 s 1 5 Motor starting time
Lock rotor time 2...120 s 1 10 Permitted stalling time
Str over delay time 0...60000 ms 1 100 Time delay to check for completion of motor
startup period
Table 654: 66/51LRS Group settings (Advanced)
Parameter
Values (Range) Unit Step Default Description
Pickup detection A 0.1...10.0 xIn 0.1 1.5 Current value for detecting starting of motor.
Section 4 1MAC059074-MB A
Protection functions
760 615 series ANSI
Technical Manual
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