ABB 615 Series ANSI, Техническое руководство

Страница: 477 / 713

Section 6
1MAC050144-MB C
Supervision functions
470 615 series ANSI
Technical Manual
Table 400: 66/51LRS Non group settings
6.6.8 Monitored data
Table 401: 66/51LRS Monitored data
6.6.9 Technical data
Table 402: 27PS Technical data
Parameter Values (Range) Unit Step Default Description
Operation 1=Enable
5=Disable
1=Enable Operation Disable / Enable
Operation mode 1=IIt
2=IIt, CB
3=IIt + stall
4=IIt + stall, CB
1=IIt Motor start-up operation mode
Counter Red rate 2.0...250.0 s/h 0.1 60.0 Start time counter reduction rate
Cumulative time Lim 1...500 s 1 10 Cumulative time based restart inhibit limit
Emg start Red rate 0.00...100.00 % 0.01 20.00 Start time reduction factor when emergency start is On
Restart inhibit time 0...250 min 1 30 Time delay between consecutive startups
Motor standstill A 0.05...0.20 xIn 0.01 0.12 Current limit to check for motor standstill condition
Name Type Values (Range) Unit Description
START_CNT INT32 0...999999 Number of motor start-ups occurred
START_TIME FLOAT32 0.0...999.9 s Measured motor latest startup time in sec
T_ST_CNT FLOAT32 0.0...99999.9 s Cumulated start-up time in sec
T_RST_ENA INT32 0...999 min Time left for restart when lockstart is enabled in
minutes
IIT_RL FLOAT32 0.00...100.00 % Thermal stress relative to set maximum thermal
stress
STALL_RL FLOAT32 0.00...100.00 % Pickup time relative to the trip time for stall
condition
66/51LRS Enum 1=enabled
2=blocked
3=test
4=test/blocked
5=disabled
Status
Characteristic Value
Pickup accuracy Depending on the frequency of the current
measured: f
n
±2Hz
±1.5% of the set value or ±0.002 x I
n
Pickup time
1
,
2
1. Current before = 0.0 x I
n
, f
n
= 60 Hz, overcurrent in one phase, results based on statistical distribution of 1000
measurements.
2. Includes the delay of the signal output contact.
Minimum Typical Maximum
I
Fault
= 1.1 x set Pickup
detection A
27 ms 30 ms 34 ms
Trip time accuracy ±1.0% of the set value or ±20 ms
Reset ratio Typical 0.90