50
1
Z E N ITH Z T S ( D) T-S E R I E S 16 0 0 -3 0 0 0 A & Z T S C T T-S E R I E S 10 0 -3 0 0 0 A
Parameters
(continued)
*Default
Device Parameters
In-phase Monitor
Enable
Off*
On
Synchronization Window
±1...10 %
(±1* %)
A phase angle difference limits to restrict live
to live source transfers unless both sources
are within this certain window of electrical
degrees.
Time Delays
Override S1 Failure
0...60 s
(2* s)
S1 priority: How long the device is waiting S1
recovery before starting transfer sequence to
S2.
S2 priority: How long the device is keeping
the load on failed S1 although S2 is already
available.
Transfer from
S1 to S2
0…60 min
(2* s)
S1 priority: How long the device is keeping
the load on failed S1 after S2 becomes
available.
S2 priority: How long the device waits before
transfer sequence back to available S2
begins. This delay is bypassed by 'Override S1
Failure' in case of S1 failure.
Pre-transfer signal 1 / 2 / 3 / 4
Pre-transfer S1 to S2
Post-transfer S1 to S2
Pre-transfer S2 to S1
Post-transfer S2 to S1
0*...300 s
Enabled only when any digital outputs is
configured as 'Pre-transfer Signal'.
Pre-transfer: How long the device is keeping
pre-transfer signal activated before
transferring from S1 to S2 or S2 to S1.
Post-transfer: How long the device is keeping
pre-transfer signal activated after
transferring from S1 to S2 or S2 to S1.
Center-Off
0*...300 s
Only delayed transition I-O-II type. How long
the switch is stopped at position O while
transferring from S1 to S2 or from S2 to S1
and the original source is not completely
down.
Center-OFF delay is bypassed in case all
phases are missing from the original source
which we are leaving.
Continued on the next page
Содержание Zenith ZTS T Series
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