M
M
N
N
S
S
i
i
S
S
O
O
p
p
e
e
r
r
a
a
t
t
i
i
o
o
n
n
3
3
ABB MNS
i
S System Setup & Operation Quick Guide / System Release 6.0 – Rev.2 / Aug. 2011
6
6
5
5
Relates to
Message
Moto
r
Starter
System
Alarm condition
Trip condition
Actuator
Torque Close
X
n.a.
Actuator running in open
direction and Torque Close
input was activated without
Limit Close input was
activated before.
Suggested action:
Check Limit Close sensor
and cabling
Check Input assignment
Torque close direction
Emergency Stop
X
n.a.
Emergency Stop activated
Earth Leakage
X
Calculated Earth Current
I
O
is higher than
parameterized Alarm level.
Suggested action:
Check parameter settings
Check Earthing system
Check motor or
connected load
Calculated Earth Current
I
O
is higher than parameterized
Trip level.
Suggested action:
Check parameter settings
Check Earthing system
Check motor or
connected load
Contact
Temperature
Unbalance
X Difference between highest
and lowest measured
Contact Temperature
T
diff
is
higher than parameterized
Alarm level.
Suggested action:
Check Power Module
contacts
Investigate root cause for
overheating
Check MNS Service
Manual for further details
Difference between highest
and lowest measured
Contact Temperature
T
diff
is
higher than parameterized
Trip level.
Suggested action:
Check Power Module
contacts
Investigate root cause for
overheating
Check MNS Service
Manual for further details