Hitachi L100 IP Series, Инструкция по эксплуатации

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Chapter 7 – Control circuit terminal functions
7-10
RS: Reset
Terminal function
A trip can be acknowledged using a sequence of activation and subsequent deactivation of an input
configured as RS.
Alarm output
(relay)
Terminal RS
approx. 30ms
12ms min.
5 4 3 2 1 P24
RS
Configuration
C 01 – C 05
Configure one of the digital inputs 1 – 5 as RS input by entering the parameter 18 under C 01 – C 05 .
WARNING When a trip condition is acknowledged with a reset, the motor will restart immediately
when a running command is being active at the same time. Consequentely, be sure to
acknowledge the trip only after having made sure that the running command is not
currently active. Otherwise there is a danger of injury to personnell.
Remarks
•
The STOP key on the digital operator functions as RESET key when a trip condition has occurred. So in
this case it can be used for resetting the inverter instead of the RS input.
•
If the RS input is held active for more than 4 seconds this may produce a false trip.
•
The RS input is always a normally open contact and can not be configured a normally closed contact.
•
A trip condition can alternatively be acknowledged by switching the power supply off and then on again.
•
If a reset is given during normal motor operation, the motor will then be running free.