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Tru O N E® AT S , I N S TA LL ATI O N A N D O PER ATI N G I N S TR U C TI O N
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Parameters (continued)
*Default
Device Parameters (continued)
Time Delays (continued)
Override S2
Failure
0...60 s
(2* s)
S1 priority: How long the device is keeping the
load on failed S2 although S1 is already available.
S2 priority: How long the device is waiting S2
recovery before starting transfer sequence to S1.
Transfer from
S2 to S1
0...120 min
(2* s)
S1 priority: How long the device waits before
transfer sequence back to available S1 begins.
This delay is overridden by 'Override S2 Failure' in
case of S2 failure.
S2 priority: How long the device is keeping the
load on failed S2 although S1 is already available.
Pre-transfer
S2 to S1
0*...300 s
Enabled only when any digital output is configured
as 'Pre-transfer Signal'.
How long the device is keeping pre-transfer signal
activated before transferring from S2 to S1.
Post-transfer
S2 to S1
0*...300 s
Enabled only when any digital output is configured
as 'Pre-transfer Signal'.
How long the device is keeping pre-transfer signal
activated after transferring from S2 to S1.
Generator Stop
0...60 min
(5* min)
Enabled only when generator is in use.
Generator cooling time, how long the device is
keeping the generator running without load after
returning to priority source.
Load Shed
0*...60 s
Enabled only when any digital output is configured
as 'Load Shed'.
How long before the transfer from priority to non-
priority source the device activates load shed
signal.
Elevator Pre-
signal S1 to S2
0*...60 s
Enabled only when any digital output is configured
as 'Elevator pre-signal'.
How long the device is keeping pre-signal signal
activated before transferring from S1 to S2.
Elevator Post-
signal S1 to S2
0*...60 s
Enabled only when any digital output is configured
as 'Elevator pre-signal'.
How long the device is keeping pre-signal signal
activated after transferring from S1 to S2.
Elevator Pre-
signal S2 to S1
0*...60 s
Enabled only when any digital output is configured
as 'Elevator pre-signal'.
How long the device is keeping pre-signal signal
activated before transferring from S2 to S1.
Elevator Post-
signal S2 to S1
0*...60 s
Enabled only when any digital output is configured
as 'Elevator pre-signal'.
How long the device is keeping pre-signal signal
activated after transferring from S2 to S1.
Continued on the next page
Summary of Contents for TruONE ATS
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