32
Fail Safe operation can be implemented by configuring a relay to operate Normally On, and wiring the circuit using the NC (normally
closed) contact. In this way, if the control panel loses power the relay will turn on the controlled device if it still has power.
4.3.4.3
Relay Turn on Delay
R e l a y 1 D e l a y O n
( m m : s s ) 0 1 : 0 0
Figure 4-32 Minimum on time
The default turn-on delay is one minute and the maximum allowed value is fifteen minutes. The value is entered in two groups, 2 digits
for the minutes and then 2 digits for the seconds. A leading zero must be entered for each group if applicable.
4.3.4.4
Relay Minimum on Time
R e l a y 1 M i n . O n
( m m : s s ) 0 1 : 0 0
Figure 4-33 Minimum on time
The default minimum on time is one minute and the maximum allowed value is fifteen minutes.
4.3.5
Configure Horn Submenu
The configuration parameters for the horn are similar to those for relays. A horn would not normally require a minimum on time, but this
parameter allows a more versatile configuration.
4.3.5.1
Horn Summary
H o r n 4
D e l a y O n
Figure 4-34 Horn Summary
This display example shows that the horn has been configured to operate with a turn on delay and no minimum on time.
Notice that the horn number, 4, is underlined. This indicates that the digit keys can be used to jump to a particular relay, horn or strobe.
The relays are numbers 1, 2 and 3; the horn is number 4 and the strobe is 5.
4.3.5.2
Horn Turn on Delay
H o r n D e l a y O n
( m m : s s ) 0 1 : 0 0
Figure 4-35 Horn Turn on Delay
The default turn-on delay is one minute and the maximum allowed value is fifteen minutes.
4.3.5.3
Horn Minimum on Time
H o r n M i n . O n
( m m : s s ) 0 0 : 0 0
Figure 4-36 Horn Minimum on Time
Содержание DVP-120B
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