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NOTE: Your Beck drive was shipped from the
factory ready for installation; no electrical
adjustments are required before placing it in
operation. Each drive is set up and calibrated
to the specifications that were written into
the equipment order.
Under normal operating conditions there is no
need to recalibrate the control drive. However,
if the application requirements change or are
different than specified on the equipment order,
the drive should be recalibrated according to the
following procedures.
SWITCH ADJUSTMENTS
Control drives are shipped with over-travel
limit switches factory-set for either 101° (11-159,
-209, -309, -409) or 91° (11-169, -269, -369,
-469) of travel unless otherwise specified at time
of order. Limit switches must be set inside the
range of the built-in, non-adjustable mechanical
stops to prevent stalling of the motor. Limit
switches can be reset to limit travel of the output
shaft to any angle down to a minimum of 60°.
Auxiliary switches are set as shown in the figure
at left unless otherwise specified at time of order.
NOTE: The over-travel limit switches are the
switches closest to the drive body. To adjust
the over-travel limit switches, it is necessary
to remove the control end cover.
Switches are operated by cams which are
clamped onto the control shaft. Setting a switch
involves loosening the cam, moving the output
shaft to the desired position, and positioning the
cam so that it just operates the switch at that point.
In the following procedure, the use of a continuity
meter is recommended to determine when the
switch opens or closes. If such a meter is not
available, it is possible to hear the switch click as
the contacts open and close.
CAUTION
Do not attach the meter or attempt to move the
switch cams until the drive is disconnected
from the line voltage and auxiliary switches are
disconnected from external power sources.
Setting Over-travel Limit
Switches CW and CCW
This procedure should be used if the factory
over-travel limit switch settings must be changed
in the field. It is advisable to operate the drive fully
in each direction, using the electric Handswitch to
check switch settings before attempting to change
them. Follow these instructions if they require
adjustment:
Standard Over-travel Limit and
Auxiliary Switch Settings
DCM-2 LOCAL INTERFACE Calibration - Switches