Protective Elements
Name
Description
Assignment via
AdaptSet4-I
Module input state: Adaptive Parameter4
[Protection Para
/Global Prot Para
/I-Prot
/IG[1]]
Ground Fault Protection Signals (Output States)
Name
Description
active
Signal: active
ExBlo
Signal: External Blocking
Ex rev Interl
Signal: External reverse Interlocking
Blo TripCmd
Signal: Trip Command blocked
ExBlo TripCmd
Signal: External Blocking of the Trip Command
Alarm
Signal: Alarm IG
Trip
Signal: Trip
TripCmd
Signal: Trip Command
Active AdaptSet
Active Adaptive Parameter
DefaultSet
Signal: Default Parameter Set
AdaptSet 1
Signal: Adaptive Parameter 1
AdaptSet 2
Signal: Adaptive Parameter 2
AdaptSet 3
Signal: Adaptive Parameter 3
AdaptSet 4
Signal: Adaptive Parameter 4
Commissioning: Ground Fault Protection – Non-directional [50N/G, 51N/G]
Please test the non-directional earth overcurrent analogue to the nondirectional phase overcurrent protection.
I< - Undercurrent [37]
Available Elements:
I<[1] ,I<[2] ,I<[3]
Functional Description
When the motor is running, a current reduction might indicate a malfunction in the load.
Underload
protection
recognizes mechanical problems, such as a blocked flow or loss of back pressure in a pump, or a broken drive
belt or drive shaft.
Refer to the underload protection limit - the left vertical line in the “Underload and Jam Trip Function
example”.
In the example, the underload trip is set at 60% of Ib (FLA). The protective device can be configured for
underload alarm (if the trip command is blocked) and underload trip.
Page 342
EN MRM4 01/11
Summary of Contents for MRM4
Page 1: ...MRM4 HighPROTEC Motor Protection Device Manual DOK HB MRM4E...
Page 3: ...Order Code EN MRM4 01 11 Page 3...
Page 18: ...Important Definitions Page 18 EN MRM4 01 11 41 SG Prot ON 42 SG ON Cmd SG Prot ON SG ON Cmd...
Page 115: ...Navigation Operation Navigation Operation EN MRM4 01 11 Page 115 1 2 3 5 7 6 8 10 9...
Page 162: ...Recorder Name Description I 2 TripCmd Signal Trip Command Page 162 EN MRM4 01 11...
