Dräger REGARD 3000 Mode D'emploi page 159

● Select Source state. This sets the state of the input channel as condition for
setting a Activation delay time of 0.5 s.
● Voting
The Voting defines the number of channels on which at least one of the defined
state conditions must be met to switch the relay.
a. Input the number of channels in which the condition must be met to switch
b. Select Source state. This sets the condition of the input channel.
c. Select
d. Select all required channels and confirm.
In the event of a 2 of 2, 3 of 3, ... Voting, make sure that the switching condition
can never be met on one of the selected channels if an error occurs.
Dräger recommends Voting n of m; m > n. Example: 2 of 3, 3 of 4.
The maximum number of sources that can be used for Voting is defined by the
number of channels configured in the system. A maximum of 250 source channels
are permissible.
Adjustable range for Voting number n: 1 to m
To remove a channel from Voting:
1. Select the check box of the channel. If necessary, enable multiple channels for
removal.
2. Select
8.5.5.5 Acknowledgement mode parameter menu
In this menu the acknowledgement modes and the switching behaviour for the
current channel can be configured.
To configure an acknowledgement mode for the current channel:
1. Select Output reset mode from the dropdown list:
Manual reset
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Instructions for use
REGARD 3000
switching the relay.
 All channels with the selected state are selected as input source.
When selecting Common Inhibit or Common Fault, Dräger recommends
the relay in the Voting count input field.
to add a channel as input source.
 A list of the available channels is displayed.
to remove all selected channels from the list.
The output channel can be manually acknowledged (e.g.
from the Display Unit or an assigned digital input), even if
the configured input condition is still pending and has not
yet been acknowledged on the input side. The relay is
reset depending on the set Acknowledgement mode.
Example: The relay is configured on a Common A1 alarm
and Acknowledgement mode ACK configures and
switches an alarm horn. In this mode of operation the
horn can be manually acknowledged, even though the
alarm condition is still pending.
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