YMER 3
OPERATORS GUIDE
March 2020
www.plcelectronicsolutions.com
D E S I G N E D A N D M A D E I N S W E D E N S I N C E 1 9 6 4
®
D E S I G N E D A N D M A D E I N S W E D E N S I N C E 1 9 6 4
®
7
Auto Calibration
Automatic motor calibration is commonly used for lenses with end stops. Automatic calibration can be started in two
ways, either from the transmitter or from the receiver.
-On the Receiver
Pressing the AUTO button on the receiver will perform a soft reset of the unit and perform a recalibration of all motor
channels. The connected motors will now move in one direction until they find the lens end stop. They will then change
direction and repeat. When both ends are detected the motors will return to a point somewhere on the lens track. The
system is now ready to use.
The calibration seqence is tuned to be gentle with the end stops of lenses, sometimes the calibration will not reach
both end stop due to varition in lens friction. If this occours, the easiest solution is to use the LenSaver maual calibration
described furter down on this page.
-On the Transmitter
Auto calibration is initiated by long pressing the Calibration button for 2 seconds until the unit gives a slight vibration and
the green Auto LED starts blinking.
The Focus motor will now move in one direction until it finds the lens end stop (or the resistance gets higher than the set
torque value can overcome). It will then change direction and repeat. When both ends are detected the Auto LED turns
solid green and the motor will return to the set position determined by the position of the control knob on the hand unit.
The system is now ready to use.
The calibration seqence is tuned to be gentle with the end stops of lenses, sometimes the calibration will not reach
both end stop due to varition in lens friction. If this occours, the easiest solution is to use the LenSaver maual calibration
described furter down on this page.
The lens calibration and current position is retained in memory up to 1 day after the system is powered down.
Removing the motor, initiating calibration or powering the system down for more than 1 day
removes the current calibration and positional memory.
LenSaver
TM
Manual Calibration
The Hedén Ymer system features the unique LenSaver
TM
manual calibration method with
unprecedented control over the calibration process. Manual calibration is especially helpful
for lenses with no or fragile end stops. Manual calibration will prevent damage to sensitive
equipment and is faster than automatic calibration in the hands of an experienced operator.
The calibration method can also help overcoming problems with automatic calibration due to
uneven or high resistance in old or worn lenses.
LenSaver
TM
Manual calibration can only be initiated from the receiver there is a separate MANUAL button per each
channel. To manually calibrate any of the channels press the corresponding MANUAL button on the receiver, the green
LED starts blinking and the display shows blinking digital segments.
The lens or motor can now be rotated by hand until it reaches the desired endpoints in both directions, without any
further input. The system recognizes the extremes -i.e. the most clockwise and counter clockwise position, as ends.
Leave the lens a teast an inch from any end stop before proceding. Press the MANUAL button once more to set the most
extreme positions the motor/lens has been at as end stops. The LED indicator turns green and the display goes back to a
number while the motor turns into position. The system is now ready to use.
