ABB MNS iS - Page 62

3
3
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
Relates to
Message
Motor Starter System
Alarm condition Trip condition
No Load X Highest measured phase
current is below the
parameterized Alarm level.
Highest measured phase
current is below the
parameterized Trip level.
Underload X Highest measured phase
current is below the
parameterized Alarm level
I
Lmax
.
Highest measured phase
current is below the
parameterized Trip level
I
Lmax
.
X Cos Phi value is below the
parameterized Alarm level.
Cos Phi value is below the
parameterized Trip level.
Underload CosPhi
TOL X Alarm level reached
% of thermal image
Trip level reached
100% of thermal image
(fix)
Note:
DCS TOL-Bypass
command available to set
Trip level to 200% of
Thermal Image. This is not
applicable for TOL Exe
protection function!
Stall X Motor current higher than
parameterized Alarm level.
Motor current higher than
parameterized Trip level.
Phase Failure X Ratio of highest phase
current I
Lmax
compared to
lowest phase current I
Lmin
is
lower than parameterized
Alarm level.
Ratio of highest phase
current I
Lmax
compared to
lowest phase current I
Lmin
is
lower than parameterized
Trip level.
Phase Unbalance X Ratio of highest phase
current I
Lmax
compared to
lowest phase current I
Lmin
is
higher than parameter-ized
Alarm level.
Ratio of highest phase
current I
Lmax
compared to
lowest phase current I
Lmin
is
higher than parameterized
Trip level.
Undervoltage X
Phase voltage is lower than
parameterized Alarm level
ratio U
Lmin
/ U
n
Phase voltage is lower than
parameterized Trip level
ratio U
Lmin
/ U
n
X Control voltage dip
< 95% U
n
(fix)
Control voltage dip
< 65% U
n
(fix)
Control Voltage
Supervi
sion
PTC Supervision X Alarm level reached
R = 1650  (fix)
Trip level reached
R = 3600  (fix)
PTC Supervision
Short Circuit
X n.a. PTC value lower than
parameterized Short Circuit
Trip level R
short circuit
PTC Supervision
Open Circuit
X n.a. PTC value higher than fixed
Trip level for open circuit
R
open circuit
≥ 10k (fix)
6
6
2
2
ABB MNS iS System Setup & Operation Quick Guide / System Release 6.0 – Rev.2 / Aug. 2011