7.5 Actions during operation
7.5.1 Normal operation
During normal operation the telescopic pillar lifts or lowers elements
connected to the pillar via the inner and outer tube base plates.
The telescopic pillar is driven via an external control unit and the
corresponding operating device (
†
Accessories
,
page 57
).
Use directional buttons UP and DOWN on the operating device to
operate CPMT.
•
Button UP: CPMT extends.
•
Button DOWN: CPMT retracts.
The CPMT moves until the button is released or the end positions
are reached. When the end position is reached, an end limit switch is
triggered and power to the DC motor is cut off. An end position can
also be defined by a pre-programmed position in the control unit
triggered by the encoder signal from the CPMT pillar.
7.5.2 Operating considerations
It is recommended not to exceed the duty cycle defined in the Tech-
nical Details. If the duty cycle is exceeded, the thermal cut off switch
may be triggered, preventing operation of the device until a normal
operating temperature of the motor has been reached.
To reduce the risk of a thermal cut off, it is recommended to oper-
ate the device with a manual push-to-run operating device.
!
Note!
Excessive current consumption, unusual noises or an
unwanted downward movement indicate damage to the tele-
scopic pillar CPMT. Cease operation of the CPMT, and inform the
manufacturer responsible for carrying out inspection.
39
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