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M-0329B LTC Backup Control
Instruction Book
1.1
Introduction ................................................................................................................... 1
Figure 1
Setpoint Voltage Levels ............................................................................... 1
2.1
Installation .................................................................................................................... 2
Figure 2
Mounting and Outline Dimensions ................................................................ 3
3.1
Terminal Block Connections ......................................................................................... 4
F
igure 3
Wire Terminations for External Connections As Required for UL Listing ....... 4
Figure 4
External Connections .................................................................................... 4
4.1
Application .................................................................................................................... 5
Figure 5
Power and Voltage Input Connections .......................................................... 5
Figure 6
M-0329B Interconnections with Beckwith
Tapchanger Controls and Regulator .............................................................................. 5
Table 1
TCC Connections ........................................................................................... 6
Figure 7
Interconnections for use with Centrifugal-type Capacitor Drive Motors ......... 7
5.1
Adjustment ................................................................................................................... 8
6.1
Theory of Operation ...................................................................................................... 8
Power Supply ................................................................................................................ 8
AC/DC Converter .......................................................................................................... 8
Level Detectors ............................................................................................................. 8
Power Supply Monitor ................................................................................................... 8
Lower Time Delay ......................................................................................................... 9
Alarm ............................................................................................................................ 9
Selectable Deadband .................................................................................................... 9
Table 2
Switch Position Settings ................................................................................ 9
Figure 8
Schematic .................................................................................................. 10
Figure 9
Block Diagram ............................................................................................ 12
7.1
Maintenance ............................................................................................................... 13