Mounting To Rotary Actuators - ABB TZID Operating Instructions Manual

3.1.4 Mounting to rotary actuators

A mounting kit is available for mounting the positioner to a rotary actuator in accordance
with VDI/VDE 3845. Fig. 7 gives you an overview:
4, 5, 6
Fig. 7 Mounting to rotary actuators
The TZID positioner is mounted to the rotary actuator using a mounting bracket (7),
which has to be ordered separately. At the positioner's back you can find four threaded
holes M6 arranged on a 50 mm circle diameter, into which the mounting bracket's fasten-
ing screws (1) are screwed. The screws, plain washers (2) and spring washers (3) are
included in the positioner's scope of delivery, just as the screws, plain washers and
spring washers (4, 5, 6) for attaching the mounting bracket to the actuator.
The adapter (8) is used to couple the accordingly dimensioned positioner shaft with the
actuator shaft. Positioners ready for attachment to a rotary actuator are delivered with
the adapter already fastened to the positioner.
IMPORTANT
16
Pay attention to the following information when mounting the TZID
positioner to a rotary actuator:
- Position feedback to the positioner is only possible through counter-
clockwise rotation (seen from the device's front). A built-in return
springs turns the shaft until reaching the stop on the right-hand side in
the unloaded state.
- The air signal output via OUT1 determines the direction of rotation
(counterclockwise or clockwise).
- You can attach the positioner to the actuator either in parallel or shifted
by 90°.
- Prior to mounting the positioner to a double acting rotary actuator, set
the shaft to the end position, i.e. to the same position which single act-
ing actuators reach through the spring load or which the air signal
OUT2 of the positioner causes.
- Position the actuator shaft in such a way that the groove is at right
angles to the longitudinal axis.
Electro-pneumatic positioner TZID
1, 2, 3
7
8
1 Hexagon head screw
M6x12
2 Plain washer A6, 4
3 Spring washer B6
4 Hexagon head screw
M5x10
5 Plain washer A5,
6 Spring washer B5
7 Mounting bracket
8 Adapter
42/18-54 EN