TSC 800 TRANSFER SWITCH CONTROLLER
PM 049 REV 10 08/09/25 Thomson Technology
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or electrically held contactors, the Maximum Find Neutral Delay function must be set
for 0.0 seconds for correct operation.
WARNING
For ICS Type transfer switches, the
Maximum Find Neutral Delay setting will
be factory defaulted to 0.0 Seconds and
must not be changed. Changing the
Maximum Find Neutral Delay setting to
another value will cause equipment
malfunction.
7.5.11. NEUTRAL DELAY TIMER (NDT)
This neutral delay timer setting is used for MCS style transfer switch models only. For
ICS type transfer switches, neutral delay is set in Programming Menus “Load on Gen”
and “Load on Utility Programmable Outputs”-DELAYED TRANSFER. Refer to sections
7.5.8 and 7.5.9 for programming information. The neutral delay time period will be
initiated once both of the supply power-switching devices are open during a transfer
sequence. Select desired neutral delay time in seconds. The range of settings is 0 to
60 seconds. If no delay is required, set this time delay to zero.
WARNING
ICS Type transfer switches do not utilize
this Neutral Delay Timer Function. The
NDT setting will be factory defaulted to
0.0 Seconds and must not be changed.
Changing the NDT setting to another
value will cause equipment malfunction.
For changing neutral time settings on
ICS type transfer switches, refer to
section 7.5.8 & section 7.5.9.
NOTES:
1. The NDT time delay period may be reduced if the neutral
delay bypass is enabled. Refer to section 7.5.12 for further
information.
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