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MOTORIZED CHANGE-OVER AND TRANSFER SWITCHES, OTM_C

The continuous control command can be given with push buttons, cam switches

or with relays incorporated in PLC equipment or with other suitable contacts.

8.1.2 Continuous control

When using continuous control, the control command is supplied to the switch continuously. When you

press the control button, the change-over switch is driven to the corresponding position (I, 0, II). Oper-

ation of position 0 will over-run control of the other positions; that is, if you simultaneously give the 0

command with another command, the change-over switch is driven to position 0. Figure 8.4 shows the

operation of the change-over switch with continuous control.

Figure 8.4 Continuous control

I - position

0 - position

II - position

I - command

II - command

0 - command

A04133

I+II (_CL)

I+II (

_CL)

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ABB OTM C Series User Manual

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