Continuous Control - ABB OTM_C Series Installation And Operating Instruction

6. Operating

6.1.2 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).
Operation 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 6.4
shows the operation of the change-over switch with continuous control.
The continuous control command can be given with push buttons, cam switches
or with relays incorporated in PLC equipment or with other suitable contacts.
I - position
0 - position
I+II ( CL)
_
II - position
Figure 6.4 Continuous control
22 l 1SCC303002M0206 l ABB Installation and operating instructions, 34OTM_C rev. F
I - command II - command
0 - command
I+II ( CL)
_
0 - command