Auma Electric multi-turn actuators SA 07.1 - 48.1_SAR 0 Manuel d'utilisateur télécharger pdf (Page 12)

7.2 Motor connection for the sizes SA(R) 25.1/SAR 30.1 – SA 48.1.

From the size SA(R) 25.1, the power for the motor is connected to separate

terminals. For this, the cover at the motor connection compartment has to be

removed.

The control contacts are connected to the AUMA plug/socket connector.

Cross section motor terminals:

16 mm² to 70 mm² (6 to 2/0 AWG), depending on the actuator size

7.3 Motor connection for

special motors

For versions with special motors (e.g. DC motors), the connection is

performed directly at the motor (figure G-4).

7.4 Delay time The delay time is the time from the tripping of the limit or torque switches to the

motor power being removed. To protect the valve and the actuator, we recommend

a delay time < 50 ms. Longer delay times are possible provided the output speed,

output drive type, valve type, and the type of installation are taken into

consideration.

We recommend to switch off the corresponding contactor directly by the limit or

torque switch.

7.5 Controls made by AUMA In case the required reversing contactors are not to be installed in the control

cabinet, the controls AUMA MATIC or AUMATIC for the sizes SA(R) 07.1 – SA(R)

16.1 can be easily mounted to the actuator at a later date.

For enquiries and more information, please state our commission no. (refer to

actuator name plate).

7.6 Heater AUMA multi-turn actuators have a heater installed as standard. To prevent

condensation, the heater must be connected.

7.7 Motor protection In order to protect against overheating and extreme high temperatures at the

actuator, PTC thermistors or thermoswitches are embedded in the motor winding.

The thermoswitch is tripped as soon as the max. permissible winding temperature

has been reached.

Failure to integrate PTC thermistors or thermoswitches into the control circuit voids

the warranty for the motor.

7.8 Remote position transmitter For the connection of remote position transmitters (potentiometer, RWG) shielded

cables must be used.

Multi-turn actuators SA 07.1 – SA 48.1 / SAR 07.1 – SAR 30.1

AUMA NORM Operation instructions

Figure G-4: Connection special motor

Figure G-3: Connection to SA(R) 25.1

Cover motor connection compartment

AUMA plug/socket connector

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 31 32

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Auma Electric multi-turn actuators SA 07.1 - 48.1_SAR 0 Manuel d'utilisateur Page 12