re-transfer. NOTE: The transfer switch will automatically re-transfer back to the
utility supply if the generator supply fails.
5.11.5. FORCE TRANSFER
The TSC 900 transfer switch controller contains a “FORCE TRANSFER” feature which
can be enabled to allow the ATS to automatically force a transfer to the alternate source
should an abnormal operating condition be detected with the ATS. The TSC 900
controller will detect abnormal conditions such as loss of ATS load voltage due to a
tripped power switching device or the transfer mechanism limit switch is not in the correct
state. The Force Transfer feature is user programmable and allows 2 different functional
settings as described below:
NO (DISABLED): Force transfer to alternate source is disabled in this mode. If
an abnormal operating condition is detected by the TSC 900 controller, a Transfer
Switch Fail Alarm will be posted on the GHC display. The TSC 900 controller will
keep the ATS mechanism in the current position and will take no further action.
The alarm condition may be reset utilizing the Reset button on the GHC Alarm
page.
YES (ENABLED): If an abnormal operating condition is detected by the TSC
900 controller, a Transfer Switch Fail Alarm will be posted on the GHC display
and the controller will immediately force a transfer to the alternate source if
available and within nominal limits. Note: “The transfer switch will remain on the
alternate source indefinitely until the “Transfer Fail” alarm condition is manually
reset on the GHC Alarm page”.
5.11.6. GHC SLEEP MODE TIMEOUT
The GHC display will automatically turn off and go in to a “sleep” mode to preserve
display operating lifetime. The sleep mode will be activated if a key press is not activated
within the pre-set time period. Touching the “Resume” button on the display will
automatically reactivate the GHC display screen to full brilliance.
5.11.7. LOAD POWER METERING
If the ATS was purchased with the LPM (Load Power Metering) Option, the power
metering can be enabled for display on the GHC by setting the value to YES.
5.11.8. MODBUS RTU
If the ATS was purchased with the Modbus serial (RTU) remote communication Option,
the com port on the GHC can be enabled by setting the value to YES.
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