2 --- 4Settings

Time Delay Settings

Unless otherwise specified on the order, the Control ler time delay settings are set at the

factory to the default values. If a setting must be changed, follow the proce dure on the

next page. Some settings may require a password (if controller is set up for one) .

Any indiscriminatechange in these settings may affectthe normal operation of the Automatic Trans-
fer Switch. This change could allow the load circuits to remain connected to an inadequate source.
Feature Time D elay Def ault Setting Adjustment Range
1 sec. increments
Display Screen
(see next page)
1C ③override momentary
Normal source outages 1second 0to6sec
see CAUTION below TD NormFail
1F override momentary
Emergency source outages 00to60min59sec TDEmrgFail
2B transfer to Emergency 00to60min59sec TDN>E
2E unloaded running
(engine cooldown) 5 minutes 0to60min59sec TD EngCool
3
A
retransfer to Normal
(if Normal fails) 30 minutes 0to60min59sec TDE>N if
Normal Fail
3
A
retransfer to Normal
(if just a test) 30 seconds 0 to 9 hours
59 min 59 sec
TD E>N if
Tes t Mod e
31F ④Normal to Emergency
pre–transfer signal 00to5min59sec TD N>E Xfer Signal
PreXfer
31M ④Normal to Emergency
post–transfer signal 00to5min59sec TDN>E Xfer Signal
PostXfer
31F,31M bypass 31F & 31M
if Normal fails no yes or no TD N>E Xfer Signal
BypassIfNFail
31G ④Emergency to Normal
pre–transfer signal 00to5min59sec TD E>N Xfer Signal
PreXfer
31N ④Emergency to Normal
post–transfer signal 00to5min59sec TDE>N Xfer Signal
PostXfer
31G, 31N bypass31G & 31N
if Emergency fails no yes or no TD E>N Xfer Signal
BypassIfEFail
4
A
C
T
S
,
in sync 1.5 second 0to3.0seconds
0.1 sec increments
CTTS TD
SyncMonitorTD
4
A
C
T
S
,
7ACTS,
7ACTB
l
①
failure to synchronize 5 minutes 0to5min59sec CTTS TD
FailToSyncT D
only①
extended parallel time 0.5 second 0.100 to 1.000 sec
0.01 sec increments
CTTS TD
XtdParallelTD
4ADTS,
7ADTS/B
only②delay transition time 00to5min59sec DTTS TD
LoadDisconnDelay
①These time delays appear only on the displayfor a 4ACTS, 7ACTS, or 7ACTB closed–transition transfer switch.
②This time delay appears only on the display for a 4ADTS, 7ADTS, or 7ADTB delayed–transitiontransfer switch
③Standard adjustment up to 6 seconds (totalpower outage). For additional time delay contact ASI. See CAUTION.
④If output contacts required, contact ASI at 1–800–800–2726.
Do not set Feature 1C TD longer than 6 sec. unless an external 24 V dc
power supply is included. Contact ASI if longer than 6 sec. is required.