
Enabling both voltage reduction Step #1 and Step #2 inputs
simultaneously will result in the level of voltage reduction as specified on
the Voltage Reduction Step #3 screen of the control.
When "Contact KeepTrack
TM
1R1L" or "Contact KeepTrack 1N" Tap position
knowledge is selected the Voltage Reduction Step 1 Input is utilized as an "Auxiliary
Raise Contact Input". In the "Contact KeepTrack" method of Tap Position Knowledge,
Voltage Reduction Step 1 is still available through communications.
Pin 19 Motor Seal-In Disconnect Output
This output connects to the B
‑
0553 motor seal-in printed circuit board subassembly.
When the seal-in detector input is actuated, this output drives a triac on the B
‑
0553 motor
seal-in printed circuit board subassembly to temporarily disconnect the motor power to
the control. The B
‑
0553 is a supplemental circuit board used in the appropriate adapter
panels.
Pins 20 & 22 User-Programmable Alarm
This pair of terminals is a Form "a" alarm relay contact rated for 3 A at 120 Vac, or 100
mA at 120 Vdc. This alarm indicates when any of the programmable alarm conditions are
detected.
Pins 21 and 24 Self-Test Alarm
If the TCC300 is configured for the SCAMP pushbutton Auto/Manual
Switch type, then the Self-Test Alarm relay is NOT available.
This pair of terminals is a held-open Form "b" alarm relay contact rated for 6 A at 120 Vac,
or 100 mA at 120 Vdc. Failure of the power supply or the micro controller results in loss
of power to the alarm relay, allowing the contact to close.
Pin 23 Non-Interruptible Power Supply Input
This input is normally connected to Pin 8, the motor power input. The power to Pin 8 is
interrupted by the motor seal-in process of the B
‑
0553 motor seal-in printed circuit board.
The purpose of Pin 23 is to provide continuous power to the raise and lower KeepTrack
TM
detection circuits. It should be connected ahead of any motor power interruption (for
example, auto/manual, local/remote) of the seal-in circuitry to maintain KeepTrack raise
and lower operation. The motor seal-in function is used in the following adapter panels:
M
‑
2109, M
‑
2324 and M
‑
2355.
FIVE PIN CONNECTOR (Bottom)
Pin 1 Source Voltage Input
Section 8
1VAC388793-MB A
Installation
560
TCC300
User Manual
Summary of Contents for TCC300
Page 1: ...Digital Tapchanger Control TCC300 User Manual ...
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