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4. Set Up and Calibration Procedures - Setting Auxiliary Switches (actuators mfd. pre-1/1/03)
Setting Auxiliary Switches (actuators mfd. pre-1/1/03)
WARNING
While the unit is powered, a potentially lethal shock hazard exists inside the case.
ATTENTION
The first two cams (starting from the back) are for the 0 % and 100 % end of travel limit switches
and should not need any adjustments as they are factory set to stop the actuator at 0 % and 100
%. See page 67 for setting end of travel limit switches (Switches #1 and #2)
If optional auxiliary switches were ordered, these switches are factory set to 10 % and 90 % for
switches #3 and #4 and to 20 % and 80 % for switches #5 and #6. Additional switch settings
should be set so that switch #3 operates in synchronism with switch #1 (i.e., both activating when
the actuator is going in the same direction) and switch #4 to operates in synchronism with switch
#2, etc.
To adjust the next auxiliary switch cams (see Figure 22 ):
1. Remove the cover. (Non-contact sensor and terminal cover, see Figure 1.)
2. Turn the locking nut, found behind the sensor, counter-clockwise using a 1/8" allen wrench or
equivalent inserted into the radial holes in the locking nut until it is possible to turn the cams with your
fingers.
3. Using a slotted screwdriver on the slots on edge of cams, or your fingers, rotate the cams until the
switches are set. (See Figure 20.)
•
The auxiliary switches should be set so switches #3 and #5 operate in synchronism with switch #1
(i.e., both activating when the drive is going in the same direction) and set switches #4 and #6 to
operate in synchronism with switch #2.
For Switches #3 and #5:
•
Rotate the actuator shaft, using the manual handwheel or the auto/manual switch, to the desired
low scale position.
•
Rotate the #3 switch operating cam to activate at this position. The switch roller arm should go
from being in an up, not depressed state, to a depressed state as the cam is rotated in the direction
of the shaft rotation going toward the limit position. This will cause the switch to go from NC to
NO when the switch activates. Switch activation may be detected by the clicking sound or with a
continuity tester connected to the terminals. Both the NC and NO contact states are available to
the customer at the terminals (see Figure 13 page 26).
•
Repeat for Switch #5 if applicable.
For Switches #4 and #6:
•
Rotate the actuator shaft, using the manual handwheel or the auto/manual switch, to the desired up
scale position.
•
Rotate the #4 switch operating cam to activate at this position. The switch roller arm should go
from being in an up, not depressed state, to a depressed state as the cam is rotated in the direction
of the shaft rotation going toward the limit position. This will cause the switch to go from NC to
NO when the switch activates. Both the NC and NO contact states are available to the customer at
the terminals (see Figure 13 page 26).
•
Repeat for Switch #6 if applicable.
70
10260S HercuLine® Actuator Installation, Operation and Maintenance Manual
Revision 5
7/07
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Troubleshooting
