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Superior Noise Characteristics
Features superior harmonic noise characteristics and can be used
for a wide frequency range (30 to 200 Hz), allowing application in
the secondary coil of the inverter control circuit.
(For instantaneous, 50/60 Hz only).
Overload Warning Feature
˙A warning alert is activated during overload to prevent a system failure due to a sudden over-current trip.
˙A bar graph on the display monitor during operation enables constant monitoring of load status, allowing easy maintenance.
Three-Phase Ammeter Function
Real-time current for each phase of the three-phase current is displayed continuously in sequence to allow constant monitoring of
current values.
˙Up to ten of the most recent failure events, up to 50 system events are stored (Advanced Type - Comm. Type)
˙Up to the five latest events of failure and three-phase current values at the time can be checked on the indicator.
˙A fault current waveform of the latest trip is stored to assist in diagnosis of the cause of the event. (Advanced Type - Comm. Type)
˙ Current waveform of the motor in operation can be easily viewed without the need of separate Current measuring equipment
(Advanced Type - Comm. Type)
R
S
T
60
70
80
90 100 110
R-Phase
Trip History Recording Feature
When a trip occurs, the cause as well as the fault current is immediately displayed to assist in diagnosing the system failure.
R
S
T
60
70
80
90 100 110
Overcurrent
C
R
A
S
%
T
60
70
80
90 100 110
S-Phase
C
R
A
S
%
T
60
70
80
90 100 110
Undercurrent
Electronic Motor Protection Relays
Run-Time Alert Function
Total cumulative motor run time is displayed for convenient
scheduling of maintenance and repair.
C
R
A
S
%
T
60
C
R
A
S
%
T
60
5
C
A
%
70
80
90 100 110
T-Phase
C
A
%
70
80
90 100 110
Phase Failure
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