ABB TCC300, Руководство пользователя, Страница: 584 / 716

9.6. Close S
3
to enable Voltage Reduction step #2. The LOWER LED should
illuminate.
9.7. Decrease voltage to 114.0 Vac. The LOWER LED should extinguish.
9.8. Open S
3
and decrease the input voltage to 120.0 Vac.
10. Paralleling
10.1. Apply 100.0 mA 90° leading current to Pin 5 (circulating current-polarity) and
Pin 6 (circulating current-return) of the P2 connector.
10.2. Set S
1
to CIRC and S
2
to IP. The LOWER LED should illuminate.
10.3. Decrease the voltage to 108.0 Vac. Both RAISE and LOWER LEDs should be
extinguished.
10.4. Set S
1
to OFF.
11. Counter
11.1. Set the TCC300 Tapchanger Control to display the Operations Count screen
for the Total Operations Counter.
11.2. Verify counter operation by depressing S4 wired to Pin 11 and Pin 12 (counter
in).
11.3. The operations counter should increment.
12. Block Raise/Block Lower/Deadband
12.1. Set Block Raise to 126.0 V.
12.2. Set Block Lower to 114.0 V.
12.3. Set the unit to display the Bias Voltage screen.
12.4. Press ENT.
12.5. Increase voltage to 126.5 V. BR should be displayed on the screen.
12.6. Increase voltage to 128.5 V. FL is displayed on the screen.
12.7. Decrease voltage to 113.5 V. BL is displayed on the screen.
—Bench Test Complete—
9.3 Starting check-out procedure
All ABB units are fully calibrated at the factory. There is no need to
recalibrate the units before initial installation.
Follow the steps below to apply power.
1. Remove any external connection between Pin 1 (voltage input) and Pin 8 (motor
power input).
2. Using a voltmeter, ensure that the voltage applied to Pin 1 is nominal 120 Vac with
respect to Pin 3 (neutral).
Section 9
1VAC388793-MB A
Testing
578 TCC300
User Manual