ABB TCC300, User Manual, Page: 166 / 716

Table 16: INPUT STATUS
Item Description
Neutral Tap Indicates (Green) neutral position contact input is
closed.
Counter Indicates (Green) operation counter contact input is
closed.
Non-Sequential Indicates (Green) Non‑sequential contact input is
closed. Tapchanger control blocks raise or lower
operation on a sustained closed contact.
Motor Seal-in Indicates (Green) when motor power is applied.
Volt Reduction 1 Indicates (Green) Step 1 voltage reduction contact
output is closed.
Volt Reduction 2 Indicates (Green) Step 2 voltage reduction contact
output is closed.
SCADA Cutout Indicates (Green) SCADA (switch) input is closed.
Tapchanger control blocks Raise or Lower
operation.
Table 17: OUTPUT STATUS
Item Description
Raise Indicates (Green) when a Tap Raise output is active.
Limited by tap Block Raise setpoint and tap position
limit settings.
Lower Indicates (Green) when a Tap Lower output is active.
Limited by tap Block Lower setpoint and tap position
limit settings.
Programmable Alarm Indicates (Green) when a Programmable Alarm
condition is true.
Motor Seal-In Indicates when a Motor Seal-In Output in active.
CBEMA EVENTS AND COUNTER STATUS
When the Load Voltage is sagging or swelling greater than the pickup setting, then a
pickup status will be set after a minimum duration, in addition to incrementing a counter.
Up to 4 CBEMA events can be set and enabled allowing the control to trigger a Sequence
of Events record when each event occurs. Also, the control will report both the time and
duration of each event via DNP. These 4 settings allow the control to be set to record
violations of the ITIC curves (formerly known as CBEMA curves).
AUX INPUT STATUS
Indicates (red) when the Auxiliary Input is active.
Section 4
1VAC388793-MB A
TCC600
160 TCC300
User Manual