Electrical Connection; Basic Information - AUMA SAEx 07.2 Operation Instructions Manual

SAEx 07.2 SAEx 16.2 / SAREx 07.2
6.

Electrical connection

6.1.

Basic information

Wiring diagram/terminal
plan
Delay time
Limit and torque
switches
Current type, mains
voltage, mains fre-
quency
Protection and sizing on
site
SAREx 16.2
Electric shock due to presence of hazardous voltage!
Failure to observe this warning can result in death, serious injury, or property damage.
The electrical connection must be carried out exclusively by suitably qualified
personnel.
Prior to connection, observe basic information contained in this chapter.
The pertaining wiring diagram/terminal plan (in German or English) is attached to
the device in a weather-proof bag, together with these operation instructions. It can
also be requested from AUMA (state order number, refer to name plate) or
downloaded directly from the Internet (http://www.auma.com).
Valve damage for connection without controls!
NORM actuators require controls: Connect motor via actuator controls only
(reversing contactor circuit).
Observe the type of seating specified by the valve manufacturer.
The torque switches also serve the purpose of valve overload protection and
must, therefore, also be connected for limit seating.
Observe wiring diagram.
The delay time is the time from the tripping of the limit or torque switches to the motor
power being switched off. To protect the valve and the actuator, we recommend a
delay time < 50 ms. Longer delay times are possible provided operating time, output
drive type, valve type, and type of installation are considered. We recommend
switching off the corresponding contactor directly by limit or torque switch.
Limit and torque switches can be provided as single, tandem, or triple switches. Only
the same potential can be switched on the two circuits (NC/NO contact) of each
single switch. If different potentials are to be switched simultaneously, tandem
switches or triple switches are required. When using tandem/triple switches:
For signalling use the leading contacts TSC1, TSO1, LSC1, LSO1.
For switching off use the lagging contacts TSC, TSO, LSC, LSO.
Type of current, mains voltage and mains frequency must match the data on the
motor name plate. Also refer to chapter <Identification>/<Name plate>.
Figure 19: Motor name plate (example)
[1] Type of current
[2] Mains voltage
[3] Mains frequency
For short-circuit protection and for disconnecting the actuator from the mains, fuses
and disconnect switches have to be provided by the customer.
The current value for sizing the protection is derived from the current consumption
of the motor (refer to motor name plate).
Electrical connection
23