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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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