8.
Electrical connection
Work on the electrical system or equipment must only be
carried out by a skilled electrician himself or by specially
instructed personnel under the control and supervision of
such an electrician and in accordance with the applicable
electrical engineering rules.
Wiring diagram
The wiring diagram applicable to the actuator is attached to the handwheel
in a weather-proof bag, together with the operation instructions. In case the
wiring diagram is not available, it can be obtained from AUMA (state com-
mission no., refer to name plate) or downloaded directly from the Internet
(www.auma.com).
External fuse
For short-circuit protection and for releasing the actuator, fuses and discon-
nect switches have to be provided by the customer.
The current values for sizing the switch can be derived from the current con-
sumption of the motor plus the current consumption of the controls.
Motor current consumption:
Refer to name plate on motor (nominal current).
Current consumption of the controls depending on the mains voltage:
100 to 120 V AC = max. 650 mA
208 to 240 V AC = max. 325 mA
380 to 500 V AC = max. 190 mA
The maximum permissible fuse for controls with a rated power of 1.5 kW is
16 A (gL/gG), and for controls with a rated power of 7.5 kW, the value
amounts to 32 A (gL/gG).
Cable installation in accordance with EMC
Signal and bus cables are susceptible to interference.
Motor cables are interference sources.
.
Lay cables being susceptible to interference or sources of interference at
the highest possible distance from each other.
.
The interference immunity of signal and bus cables increases if the cables
are laid close to the ground potential.
.
If possible, avoid laying long cables and make sure that they are installed
in areas being subject to low interference.
.
Avoid long parallel paths with cables being either susceptible to interfer-
ence or interference sources.
.
For the connection of remote position transmitters (potentiometer, RWG),
screened cables must be used.
Heater
As standard, the control unit of the actuator is equipped with a heater to pre-
vent condensation within the actuator. Unless ordered otherwise, the heater
is internally supplied. For external supply (option), the heater always has to
be connected.
Some actuators are optionally equipped with an additional motor heater.
The motor heater is always externally supplied and has to be connected
according to the wiring diagram.
14
Multi-turn actuators SA 07.1 – SA 30.1/SAR 07.1 – SAR 30.1
with actuator controls AUMA MATIC AM 01.1/AM 02.1
Operation instructions
