ABB TCC300, User Manual, Page: 69 / 716

Table 2: Tapchanger status parameters
Parameter Values
Tap Position The range of displayed values for Tap Position (TAP)
are 16L–0–16R.
Band Status The range of displayed values for Band Status (BDS)
are HIGH, LOW and In Band.
Power Direction The range of displayed values for Power Direction
(PWR) are Forward and Reverse.
Blocks in Effect The range of displayed values for Blocks in Effect
(BLK) from left to right are:
Position 1
LL – Block Line Limit
DL – Delta VAr Overcurrent Limit Block
Position 2
FL – Force Lower Block
BR – Volt Block Raise
BL – Volt Block Lower
Position 3
TR – Tap Raise Block
TL – Tap Lower Block
Position 4
NS – Non Sequential Block
SR – Seal - in Failure Raise Block
SL – Seal - in Failure Lower Block
IB – Low Current Block
Position 5
CB – Comm Block
Position 6
RP – Reverse Power Block
Position 7
SC – SCADA Cutout Local
Voltage Reduction The range of displayed values for Voltage reduction
(VRD) are on and off. Press the Exit pushbutton to
return to the "Tapchanger Status" screen.
3.6.1.4 Accessing the alarm status screens from the HMI
1. Navigate to the "Alarm Status" screen.
2. Press the ENT pushbutton. The control will display a summary of the Alarm Status
parameters.
Alarm Status Display Key
•
– = Disabled/Condition Not Met
• 1 = ALARM, ENABLED/Condition Met
• 0 = ENABLED/Condition Not Met
• X = Disabled/Condition Met
3. To cycle through each element of the Alarm Status display, press the Down arrow
pushbutton. The control will display a detailed status screen.
1VAC388793-MB A
Section 3
Operation
TCC300 63
User Manual