Woodward highprotec MRI4, Руководство пользователя

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Service and Commissioning Support
Forcing the Relay Output Contacts
The parameters, their defaults and setting ranges have to be taken from Relay
Output Contacts section.
Principle – General Use
The User MUST ENSURE that the relay output contacts operate normally after
the maintenance is completed.
If the relay output contacts do not operate
normally, the protective device WILL NOT provide protection.
For commissioning purposes or for maintenance, relay output contacts can be set by force.
Within this mode [Service/Test Mode/Force OR/BO Slot X(2/5)], relay output contacts can be set by force:
Permanent; or
Via timeout.
If they are set with a timeout, they will only keep their “Force Position” as long as this timer runs. If the timer expires,
the relay will operate normally. If they are set as Permanent, they will keep the “Force Position” continuously.
There are two options available:
Forcing a single relay »
Force ORx«; and
Forcing an entire group of relay output contacts » Force all Outs«.
Forcing an entire group takes precedence over forcing a single relay output contact!
A relay output contact will NOT follow a force command as long as it is
disarmed at the same time.
A relay output contact will follow a force command:
•
If it is not disarmed; and
•
If the Direct Command is applied to the relay(s).
Keep in mind, that the forcing of all relay output contacts (of the same
assembly group) takes precedence over the force command of a single relay
output contact.
617 MRI4 DOK-HB-MRI4-2E