MSA SUPREMA - Page 76

REV 0, June 2005Page 76
Operation Manual SUPREMA
4. Operation of the System
Advise to multiply-links: At the creation of multiply-links the digital outputs with a
high number of links must be selected to the lower numbered (9–256) switch
outputs. After entering the links the system makes a link-calculation. The found
value shall be recorded in the logbook by the system after take over. If the value
of link- calculation exeed 63, a warning goes output. The system shall refuse a
value over 70, the user has to reduce the link settings.
“OR” link: (1-out-of-m)
Multiple conditions are set, and the value of 1 is entered as the voting, i.e., if any one or more
of the set conditions are met, the relay output will be activated. Parameters for a global alarm
or common alarms can be set in this manner.
“AND” link: (m-out-of-m)
The value entered for the voting corresponds to the number of set conditions, i.e. all of the set
conditions must be met for the relay output to be activated.
Voting link: (n-out-of-m)
If ‘m’ conditions are set, and the value of ‘n’ is entered as the voting, then the selected relay
output will only be activated if ‘n’ out of the ‘m’ conditions are met.
OK
Field type: Button
Press this button to accept the settings entered for the selected relay output. After the button is
pressed, the voting settings are checked to see if they are valid. If the settings are valid, they
become part of the system’s parameter set. If they are not valid, a warning appears and the
settings can be correct.
Cancel
Field type: Button
Pressing this button cancels the settings entered for the selected relay output.
Clear
Field type: Button
Press this button to delete all of the parameters for the selected relay output. The output will
then return to the way it was before its first configuration. Default values are used as the
preliminary settings for the input of certain fields.
Relay outputs
This menu summarises all of the parameters for a relay output. The parameter values for the
relay outputs can be viewed and changed.
The menu corresponds to the functions of the “relay outputs assignment menu” described in
the preceding chapter, in which the relationship between a certain input to a relay output was
designated. Unlike that system, the menu described here establishes the configuration conditions
for a certain relay output.
The behaviour of a relay output depends on its parameter settings and the settings of
the appropriate measure points
(see section 6.4.2 Behaviour of the Relay Outputs).