14
Parameter setting
e) Position-limit switching unit -16- (Fig.9)
This unit causes the CLOSE or OPEN position-limit switch (PZ or PO) to open when the preadjusted RPMof the output
shaft are reached, the rotary motion of the unit being derived from that of the output shaft by means of the drive wheel -62-.
This wheel is rotated step by step by gear wheels driving cam -57- (-60-). Turning of the cam up to the lever of
the CLOSE or OPEN position-limit switch (PZ or PO) causes the switches to change over.
Handling and setting
The unit can be adjusted within the range shown in Tab.1. The adjusting procedure is the following:
1) After attachment of the actuator to a fitting, bring the fitting into the CLOSE position by means of the actuator.
2)
In this position, depress the tripping rod -58- in the vertical direction and then rotate it through an angle of 90°
to the left or right.
3)
Turn the regulating screw -56- in the direction of arrowhead designated „Z“ (CLOSE) till the cam -57- depresses
the spring of microswitch -63- (PZ).
4)
Rotate the tripping rod -58- at an angle of 90°. As a result, the rod should shift out again. If this is not the case, turn
the screw -56- or -59- by a small amount.
5) Readjust the fitting to the OPEN position by the required number of revolutions, making use of the actuator.
6)
Apply pressure on the tripping rod -58- again in the vertical direction and position it at an angle of 90° on either side.
7)
Turn the regulating screw -59- in the direction of arrowhead designated „O“ (OPEN) till the cam -60- depresses
the spring of microswitch -61- (PO).
Position "4 mA“
Set the actuator to required position (usually
Closed) and keep the push-button 4 depressed
until LED blinks.
Position "20 mA“
Set the actuator to a required position (usually
Open) and keep the push-button 20 depressed
until LED blinks.
20
4
- L
+ L
- U
+ U
1
DCPT
EHL elektronika
v.č. 000106
20
4
- L
+ L
- U
+ U
1
DCPT
EHL elektronika
v.č. 000106
2 s
Diagram of microswitches
Legend:
55 – Decadic transmission gearing
56 – CLOSE adjusting screw
57 – CLOSE tripping cam
58 – Tripping rod
59 – OPEN adjusting screw
60 – OPEN tripping cam
61 – OPEN position–limit microswitch (PO)
62 – Drive gear
63 – CLOSE position–limit microswitch (PZ)
The encircled numbers correspond to
the numbers of terminals on the terminal
board of the actuator.
Fig.9 -
Position-limit switching unit
55
56
57 58
59
63
62
60
61
19
17
18
16
14
15
1
2
4
2 s
Summary of Contents for MODACT MON 100/130-100
Page 2: ......
