Name
Range
Description
TM>
Condition
0: Normal
1: Alarm 1
ON
2: Alarm 2
ON
3: Inhibit
ON
4: Trip ON
5: Blocked
The function's operating condition. No outputs are controlled when the status is "Normal".
Motor status
0: Stopped
1: Stalled
2: Just
Stopped
3:
Overloading
4: Running
normal
The function's thermal image status. When the measured current is below 1 % of the nominal
current, the status "Light/No load" is shown. When the measured current is below the trip limit,
the status "Load normal" is shown. When the measured current is above the pick-up limit but
below 2 x
I
n
, the status "Overloading" is shown. When the measured current is above 2 x
I
n
, the
status "High overload" is shown.
TM> Setting
alarm
0: SF
setting ok
1: Service
factor set
fault.
Override to
1.0
Indicates if SF setting has been set wrong and the actually used setting is 1.0. Visible only when
there is a setting fault.
TM> Setting
alarm
0: Ambient
setting ok
1: Ambient
t set fault.
Override to
1.0
Indicates if ambient temperature settings have been set wrong and actually used setting is 1.0.
Visible only when there is a setting fault.
TM> Setting
alarm
0: Nominal
current calc
ok
1: Nominal
current set
fault.
Override to
1.0
Indicates if nominal current calculation is set wrong and actually used setting is 1.0. Visible only
when there is a setting fault.
TM> Setting
alarm
0: Ambient
setting ok
1:
Inconsistent
setting of
ambient k
Indicates if ambient k setting has been set wrong. Visible only when there is a setting fault.
Table. 5.4.23 - 199. Measurements.
Name
Range
Description / values
Currents
0: Primary A
1: Secondary A
2: Per unit
The active phase current measurement from IL1 (A), IL2 (B) and IL3 (C) phases in given
scalings.
Thermal
image
0: Thermal image
calc.
- TM> Trip expect mode: No trip expected/Trip expected
- TM> Time to 100 % theta: Time to reach the 100 % thermal cap
- TM> Rreference T curr.: reference/pick-up value (IEQ)
- TM> Active meas. curr.: the measured maximum TRMS current at a given moment
- TM> T est. with act. curr.: estimation of the used thermal capacity including the current
at a given moment
- TM> T at a given moment: the thermal capacity used at that moment
A
AQ
Q-M257
-M257
Instruction manual
Version: 2.07
254
© Arcteq Relays Ltd
IM00021
Summary of Contents for AQ-M257
Page 1: ...AQ M257 Motor protection IED Instruction manual...
Page 2: ......
