
This digital input registers neutral position switch closures on regulators. The pins are
isolated from neutral to permit placement of the external contact in series with either the
wetting voltage or neutral. Normally the wetting supply (Pin 10) will be connected to Pin
14.
When using the ΔVAR2 (KeepTrack) paralleling method, this input becomes the disable
input for ΔVAR2 (KeepTrack). This is used to keep the paralleled devices from running
to their limits (max raise or lower) if they have been un-paralleled for maintenance, etc.
Pin 16 Tapchanger Lower Output
This switched output connects the tapchanger lower winding to the source of motor
power. When the control calls for a lower, it is capable of switching up to 6 A at 120/240
Vac.
Pin 17 Input 2 - Non-Sequential Operation/Auto Tapchange Inhibit/Block
SCADA
– Non-sequential Operation
When the Input Selection (2) screen (in the Configuration menu) is set to NONSEQ
INPUT, non-sequential operation is invoked by momentarily connecting this input to the
n12 Vdc wetting source (Pin 10) through an external Form "a" dry contact. When
this function is enabled, the tapchanger control times out with the Time Delay setting
between every tapchange.
– Auto Tapchange Inhibit
When the Input Selection (2) screen (in the Configuration menu) is set to NONSEQ
INPUT, auto tapchange inhibit is invoked by closing and maintaining a Form "a" dry
contact connected to this input and to the n12 Vdc wetting source (Pin 10). As
long as this contact is closed, the tapchanger will not time out, thereby prohibiting raise
and lower commands.
– SCADA Cutout Input
When the Input Selection (2) screen (in the Configuration menu) is set to SCADA
CUTOUT INPUT, all writes using SCADA will be blocked when the non-sequential input
is present. Any read operations using SCADA will still be allowed regardless of the input
state. When the "SCADA Cutout Input" input mode is selected, all non
‑
sequential input
functions will be disabled.
Pin 18 Voltage Reduction Step #1
This digital input is typically enabled by connecting it to the n12 Vdc wetting
source (Pin 10) through an external Form "a" dry contact. The amount of voltage reduction
implemented is determined by the setting.
1VAC388793-MB A
Section 8
Installation
TCC300
559
User Manual
Содержание TCC300
Страница 1: ...Digital Tapchanger Control TCC300 User Manual ...
Страница 2: ......
Страница 3: ...Document ID 1VAC388793 MB Issued 2016 08 10 Revision A Copyright 2016 ABB All rights reserved ...
Страница 22: ...Updating data file remotely 700 Section 16 Glossary 705 Table of contents 16 TCC300 User Manual ...
Страница 26: ...20 ...
Страница 34: ...28 ...
Страница 91: ...1VAC388793 MB A Section 3 Operation TCC300 85 User Manual ...
Страница 126: ...120 ...
Страница 176: ...Section 4 1VAC388793 MB A TCC600 170 TCC300 User Manual ...
Страница 260: ...254 ...
Страница 328: ...322 ...
Страница 494: ...488 ...
Страница 556: ...550 ...
Страница 580: ...574 ...
Страница 600: ...594 ...
Страница 700: ...694 ...
Страница 710: ...704 ...
Страница 712: ...706 ...
Страница 713: ...707 ...
Страница 714: ......
Страница 715: ......