AUMA Electric multi-turn actuators SA 07.1 - 16.1_SAR 07.1 - 16.1 MATIC AM 01.1 - 02.1 - Manual (Page 15)

8. Electrical connection
Work on the electrical system or equipment must only be
carried out by a skilled electrician themselves 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 terminal plan applicable to the actuator is placed inside the terminal com-
partment, the operation instructions are attached to the handwheel in a
weather-proof bag.
External fuse
For short-circuit protection and for protecting the actuator, fuses and disconnect
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 interference
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 prevent
condensation within the actuator. Unless ordered otherwise, the heater is inter-
nally 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.
15
Multi-turn actuators SA 07.1 – SA 30.1/ SAR 07.1 – SAR 30.1
Operation instructions with actuator controls AUMA MATIC AM 01.1 / AM 02.1