
INCON 1292
mounted on shaft
1292
Synchro
Control Cabinet
M-2025B/D
Current Loop
Interface
120 Vac signal
TCC300
LTC Control
RS-485
or FO
HMI
Tap Position
RTU /
SCADA
.
.
Rx Current
Loop Resistor
Interface Cable
Transformer
INCON 1250
Tap Position
Monitor
4-20 mA dc
signal
GUID-30EC8A13-824C-4EB1-B1BE-88C3903D9ED0 V1 EN
Figure 359:
Tap Position Scheme Using INCON Devices
Connection of the optional M
‑
2025B(D) will require either a B
‑
0752 (5 pin to 6 pin) or
B
‑
0753 (6 pin to 6 pin) interface cable. See M
‑
2025B(D) Specification for details.
The transformer (XFMR) and regulator (REG) external setting is for use with the Positive
Knowledge (current loop) system, except REG #3, which is designed to be used with a
Toshiba resistive voltage divider. Selecting either XFMR or REG will determine which
screens are disabled, and then selecting either #1, #2, or #3 will depend on the output
current or voltage signal from the Tap Position monitor.
outlines the options
available for the Tap Information screen.
The user initializes the control at a given, known, tap position upon installation, by
following the steps described later in this section. See "Initializing Tap Position when
Regulate (Reg or XFMR) External or Contact KeepTrack™ 1R1L/1N is Active" for
detailed steps for entering the tap position using the HMI or TCC600®.
To obtain accurate calibration, it is suggested that the calibration should
be performed near the neutral tap for 0 to 1, 0 to 2 and 4 to 20 mA, and at
tap position 8 R or 8 L in the case of -1 to +1 mA range.
6.4.1.4
Resistor Divider KeepTrack
™
tap position knowledge for LTCs
Applicable controls and accessories for Resistor Divider KeepTrack Method include:
Section 6
1VAC388793-MB A
Configuration
454
TCC300
User Manual
Содержание TCC300
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