定位器旋转气缸英文文献和中文翻译
Page Section
1 1. Contents
2 2. Installation -
2.1 Direct Mounting Units onto Kinetrol Positioner Actuators
2.2 Mounting of Discrete Positioners.
2.3 .Pneumatic and Electrical Connections.
4 3. Description of Operation
5 4. Settings and Adjustments –
4.1 Change of Direction for rising signal (direct mounted)
4.2 Zero and Range Adjustment
4.3 Speed Control
4.4 Change of Direction for rising signal (Discrete)
7 5. Maintenance and Troubleshooting
2. INSTALLATION.20216
Positioners can be supplied direct-mounted, or ready to be direct-mounted, onto Kinetrol rotary actuators, or in stand- alone (discrete) form for fitting via a mount kit to any 90 degree rotary or linear actuator. If the positioner is supplied ready mounted on an actuator, sections 2.1 & 2.2 can be bypassed. Positioner-type Kinetrol actuators (ready for direct mount of positioners) are available in models 050 to 140 inclusive.
2.1 Mounting of Direct Mounting Units onto Kinetrol Positioner-Type Actuators (without angle retransmit)
Note: For angle retransmit versions, refer to section 6.1
2.1.1 Move actuator vane to mid travel position, with its output square as shown in Figure 1. This is advisable to prevent subsequent error in orientating positioner coupling. (This is not necessary with spring return actuators as there can be no
confusion with square orientation).
2.1.2 Remove positioner cover and undo the two M4 screws retaining the red angle scale plate and remove coupling as shown in Figure 2.
2.1.3 Bolt the positioner body to the actuator in the orientation shown in Figure 1 taking care that the two O'rings are in place to seal the ports to the actuator (place a small amount of grease onto the O'rings to keep them in place) and that the actuator shaft is centred in the body.
2.1.4 Observe the direction that the cam moves with a rising signal and, if correct, place the coupling on the actuator square with one hand whilst pulling back the mechanism with the other (refer to Figure 2). If the direction is not as required then refer to section 4.1. If the actuator has been correctly positioned near mid-stroke, the cam follower will contact the cam at approximately half way. Ensure that the coupling is pushed fully onto the actuator square and tighten the central fixing screw which will have the effect of centralising the cam follower on cam. Refit the angle scale plate.
2.2 Mounting of Discrete Positioner.
The design and manufacture of the mount kit between the positoner and actuator is outside the scope of this document. It is essential that the shaft of the actuator is well aligned with the positioner shaft and that the two are coupled together with a minimum of backlash as this will reduce the performance of the positioner/actuator combination. It is essential that the 90 degree travel of the actuator moves the positioner coupling through the correct 90 degrees of travel. This can be achieved by either observing the position of the indicator on the lid or the position of the cam or internal indicator with the lid removed.
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