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2 --- 4Settings
Time Delay S ettings
Unless otherwise specified on the order, t he Controller time delay settings are set at the
factory to the default values. If a setting must be changed, follow the procedure on the
next page. Some settings may require a password (if controller is set up for one).
Any indiscriminate change in these settings may affect the normal operation of the Automatic Trans-
fer Switch. This change could allow the load circuits to remain connected to an inadequate source.
Feature Time Delay Default Setting
Adjustment Range
1 sec. increments
Display Screen
(see next page)
1C ③
override momentary
Normal source outages
1second
0to6sec
see CAUTION below
TD NormFail
1F
override momentary
Emergency source outages
0 0to60min59sec TD EmrgFail
2B transfer to Emergency 0 0to60min59sec TD N>E
2E
unloaded running
(engine cooldown)
5 minutes 0to60min59sec TD EngCool
3
A
retransfer to Normal
(if Normal fails)
30 minutes 0to60min59sec
TD E>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
Test M od e
31F ④
Normal to Emergency
pre–transfer signal
0 0to5min59sec
TD N>E Xfer Signal
PreXfer
31M ④
Normal to Emergency
post–transfer signal
0 0to5min59sec
TD N>E Xfer Signal
PostXfer
31F, 31M
bypass 31F & 31M
if Normal fails
no yes or no
TD N>E Xfer Signal
BypassIfNFail
31G ④
Emergency to Normal
pre–transfer signal
0 0to5min59sec
TD E>N Xfer Signal
PreXfer
31N ④
Emergency to Normal
post–transfer signal
0 0to5min59sec
TD E>N Xfer Signal
PostXfer
31G, 31N
bypass 31G & 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
FailToSyncTD
only①
extended parallel time 0.5 second
0.100 to 1.000 sec
0.01 sec increments
CTTS TD
XtdParallelTD
4ADTS,
7ADTS/B
only
②
delay transition time 0 0to5min59sec
DTTS TD
LoadDisconnDelay
① These time delays appear only on the display for a 4ACTS, 7ACTS, or 7ACTB closed–transition transfer switch.
② This time delay appears only on the display for a 4AD TS, 7ADTS, or 7ADTB delayed–transition transfer switch
③ Standard adjustment up to 6 seconds (total power outage). For additional time delay contact ASI. See CAUTION.
④ If 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.