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D-4990 – Low Energy Operator
The door has several options that are enabled with dip switches. This may be
confusing and wrong settings may cause improper door operation. But in all
cases the door should open with the switches set to all off. A possible exception
here is if an electric strike does not open and the door is locked. A second
exception is if the operator is an in-swing. For an in-swing door type DIP SW3
should be ON.
NOTE: Before considering any initial adjustments, PLEASE ensure the
operator has been installed to the proper template requirements for the
respective application. D-4990 – Push Side or D-4990T Pull Side
1.) Turn power switch to off.
2.) Check mechanical closer settings. These include close speed, back
check, latch check and spring force. When these are properly set the door
moves smoothly manually. If these are set at too high a value the
automatic door operation can be compromised. All of these should be
properly set from the factory.
3.) POTs 4,5,6,7 should be set to the middle of their range. (Factory Default)
4.) POT2 should be set completely counter clockwise. (Factory Default)
5.) Advance POT1 about ¼ turn clockwise from it fully counterclockwise point.
6.) Shut the door that the operator is attached to.
7.) When the door power switch is turned on the motor drive will move
backward to the point where it pushes on the shut door – as if to shut it.
8.) Then the motor drive will return to a position called "Ready". The motor
drive is ready to open the door.
9.) Set the function switch to "Hold Open".
10.)
The door should open but it will be open at less than 90 degrees.
11.)
With the door at this hold open position vary POT 4 so that the door
is stationary.
12.)
Move the function switch to Day.
13.)
At this time the orange LED should be glowing. The numeric
display should indicate "-2"
14.)
When the door open switch is pressed the yellow LED should glow.
The door should move open. The numeric display should show "-4" while
the door moves open.
It should show "-5" for ~2 seconds during the last 10 degrees of
15.)
door travel. Then when the door is fully open the display should show "-
6".
16.)
After about 5 seconds the door should return to closed. During the
door closing the numeric display should show "-7".
When the door is closed the numeric display should show "-2".
17.)
Initial Adjustments:
1
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Summary of Contents for Dormakaba D-4990
- Page 1 NOTE: Before considering any initial adjustments, PLEASE ensure the operator has been installed to the proper template requirements for the respective application. D-4990 – Push Side or D-4990T Pull Side 1.) Turn power switch to off. 2.) Check mechanical closer settings. These include close speed, back check, latch check and spring force.
- Page 2 D-4990 – Low Energy Operator Initial Adjustments Cont’d: Door Position Adjustment: 1.) To make the door move open to a full 90 degrees the technician needs to adjust POT 2. 2.) To do this, change the POT2 position by about 5 degrees and check the new position by opening the door.
- Page 3 D-4990 – Low Energy Operator Initial Adjustments Cont’d: Door does not Open Completely and Numeric displays Shows “-8” If the door shows a “-8” then the controller has tried to open the door but it sensed an obstruction. This sensed obstruction maybe due to many things. One possible remedy is to increase the setting of POT6.
- Page 4 D-4990 – Low Energy Operator Initial Adjustments Cont’d: Electric Strike: 1.) For the electric strike to work it should be connected according to the manual drawing Figure 1.7. 2.) The power supply should be a DC power supply. AC power supplies will not work and may actually damage the controller.
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