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Alert Function |
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5. Alt is the alert setting mode. It displays the load
rate of the current setting value by the bar LED (60 ~
110%).
- If the current is higher than the setting value, the bar LED is switched
ON and OFF and the AL relay (07-08) make and close and open in 1 second
intervals until the EMPR is tripped.
(Pre-alarm function)
-If the 5. Alt mode is set to OFF, the AL relay makes and close after the
EMPR is tripped (Normally open contact).6. To
finish the settings you have to press the "Sel" button in the Sto mode. |
Alarm signal (Alert
function)
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3. Adjust the operating time by the time control knob |
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Inverse time characteristics
- Select the inverse time in the 1. CHA mode, the default operating
time is 600% of the rated current.
- The setting range of the operating time is 0 ~ 60
seconds. Set the time by considering the motor start time.
- When it is over the setting time, the EMPR
operate in accordance with the hot curve. (see Inverse time
characteristic graph)
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Definite time
characteristics
- Select the definite in the 1. CHA mode, it is
operated by the definite time characteristics.
- D-time means the time that delays the operating
time when the motor is starting.
- The setting range of the operating time is 0 ~ 60
seconds. Set the time by considering the motor start time.
- Set the 0-time at the setting mode 2. dEF and the
range is 0 ~ 30 seconds.
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4.
Adjust the operating current by the current knob |
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- Set the operating current based on the rated current that is
described in the name plate. Generally set the 110 ~
115% of the real load current in the normal load condition.
- There are 2 CT types according to the current
range (0.6 / 60). When you use the external CT you can see the real
current by setting the CT ratio (in DMP60CT types the default CT ratio
is 10:1).
- You can easily set the current value by referring
to the load rate which is displayed on the bar-graph (approx. 90% load
rate).
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LG Industrial Systems