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

6 Electrical connection

6.1 Basic information

WARNING
Wiring diagram/terminal
plan
NOTICE
Delay time The delay time is the time from the tripping of the limit or torque switches to the motor
Limit and torque switches Limit and torque switches can be provided as single, tandem, or triple switches. Only
Current type, mains
voltage, mains frequency
Protection and sizing on
site
Electric shock due to presence of hazardous voltage!
Failure to observe this warning could result in death, serious injury, or property dam-
age.
à The electrical connection must be carried out exclusively by suitably qualified per-
sonnel.
à Prior to connection, heed 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 when indicating the order number (refer to name plate) or
downloaded directly from our Website (http://www.auma.com).
Valve damage when connecting to actuator controls!
à NORM actuators require actuator controls: Connect motor via actuator controls
only (reversing contactor circuit).
à Respect the type of seating specified by the valve manufacturer.
à The torque switches also serve the purpose of valve overload protection and must,
therefore, also be connected for limit seating.
à Heed wiring diagram.
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 switch-
ing off the corresponding contactor directly by limit or torque switch.
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 DSR1/TSC1, DOEL1/TSO1, WSR1/LSC1,
WOEL1/LSO1.
• For switching off use the lagging contacts DSR/TSC, DOEL/TSO, WSR/LSC,
WOEL/LSO.
Type of current, mains voltage and mains frequency must match the data on the motor
name plate. Refer to Name plate
Figure 19: Motor name plate (example)
[1] [2] [3]
[1] Type of current
[3] Mains frequency
For short-circuit protection and for disconnecting the actuator from the mains, fuses
and disconnect switches or circuit breakers have to be provided by the customer.
[} 9].
[2] Mains voltage
Electrical connection
21