Protective Elements
Parameter
Description
Setting range
Default
Menu path
LRTC
Specifies how long a
locked-rotor or stall
condition can be
maintained before the
motor is damaged, in
seconds, for a cold start.
Use motor nameplate or
manufacturers data.
1 - 120s
1s
[Field Para
/Motor]
STPC
Stop current threshold, in
percent of Ib, if the actual
current is below the
threshold for at least 300
milliseconds. If a stop
state occurs, the jogging
functions Starts per Hour
Allowed (SPH), Time
Between Starts (TBS)
and Anti-Backspin (ABS)
are enforced. All phases
of the current must be
below this level before a
stop will be declared.
0.02 - 0.20Ib
0.02Ib
[Field Para
/Motor]
k-Factor
The k-Factor is to be
calculated by the
maximum allowed
continuous current over
the rated current
transformer current (e.g.
1.2 times rated motor
current over rated
transformer current).
0.25 - 1.50
0.85
[Field Para
/Motor]
StartBlo Fc
StartBlo Fc
inactive,
active
inactive
[Protection Para
/Global Prot Para
/MStart
/Start Control]
ThermBlo Fc
ThermBlo Fc
inactive,
active
inactive
[Protection Para
/Global Prot Para
/MStart
/Start Control]
TRN Criteria
Start transition criterion
TRN I,
TRN TIME,
TRN T and I,
TRN T or I
TRN T and I
[Protection Para
/Global Prot Para
/MStart
/Start Control]
TRNT
Motor start transition time
limit
Only available if: TRN
Criteria = TRN T and I
Or TRN Criteria = TRN
TIME.
0 - 1200s
10s
[Protection Para
/Global Prot Para
/MStart
/Start Control]
Page 274
EN MRM4 01/11
Содержание MRM4
Страница 1: ...MRM4 HighPROTEC Motor Protection Device Manual DOK HB MRM4E...
Страница 3: ...Order Code EN MRM4 01 11 Page 3...
Страница 18: ...Important Definitions Page 18 EN MRM4 01 11 41 SG Prot ON 42 SG ON Cmd SG Prot ON SG ON Cmd...
Страница 115: ...Navigation Operation Navigation Operation EN MRM4 01 11 Page 115 1 2 3 5 7 6 8 10 9...
Страница 162: ...Recorder Name Description I 2 TripCmd Signal Trip Command Page 162 EN MRM4 01 11...