Electrical Connection; Basic Information - AUMA SAEx 07.2 Operation Manual

SAEx 07.2 SAEx 16.2 / SAREx 07.2
5.

Electrical connection

5.1.

Basic information

Wiring diagram/terminal
plan
Delay time
Protection on site
Protection via thermal
motor protection
Limit and torque switch-
es
Type of current, mains
voltage and mains fre-
quency
SAREx 16.2
Danger due to incorrect electrical connection
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 per-
sonnel.
Prior to connection, observe basic information contained in this chapter.
After connection but prior to applying the voltage, observe the <Commissioning>
and <Test run> chapters.
The pertaining wiring diagram/terminal plan is in the cover of the electrical connection.
The operation manual is attached to the device in a weather-proof bag.
Valve damage for connection without controls!
NORM actuators require controls: Connect motor via controls only (reversing con-
tactor circuit).
Observe the type of seating specified by the valve manufacturer.
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 the operating time, output drive
type, valve type, and the type of installation are considered. We require switching off the
corresponding contactor directly by limit or torque switch.
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 respective sizing is derived from the current consumption of the
motor (refer to electrical data sheet).
According to FM approvals, thermal switches for thermal motor protection must be
connected to external controls for explosion-proof actuators.
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 signaling 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 tag.
Electrical connection
19