Basler BE1-50/51M-222, Инструкция по эксплуатации

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BE1-50/51M-222 General Information
1-6
Figure 1-5. Instantaneous Characteristic Curves
Time Reset Reset occurs when the current drops below pickup and the relay has not
timed out. Switch SW8-4 provides selection of either an instantaneous or
integrating reset characteristic. Opening SW8-4 forces the instantaneous
reset timer to zero when timed dropout occurs. This fast reset
characteristic prevents the ratcheting effect that may occur with repeating
system faults. Closing SW8-4 selects the integrating reset characteristic.
The integrating reset characteristic simulates the disk reset of
electromechanical relays. BE1-50/51M-222 relays provide the integrating
reset function even when input current falls to zero. Integrating reset
characteristics are shown in Figure 1-6.
Target Indicators Magnetically latched, manually reset targets indicate that current of 0.2
amperes or greater was present in the trip circuit. Target coil resistance is
less than 0.1 ohm and operate time is less than one millisecond. See
50/51 Output specifications for maximum current rating.