A special parking frame (figure E-4) is
available to protect against touching the
bare contacts and environmental influ-
ences, in case the electrical connection
has been removed.
7.2
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 considered.
We recommend to switch off the corresponding contactor directly by the limit
or torque switch.
7.3
Motor protection
The motors have no built-in thermal motor protection. The applicable
national regulations must be observed.
7.4
Remote position transmitter
For the connection of remote position transmitters (potentiometer, RWG),
screened cables must be used.
11
Multi-turn actuators SAI 6 – SAI 100 / SARI 6 – SARI 100
Operation instructions
for valve automation Inside Containment in nuclear power plants
Parking frame
Terminals
Technical data
Power terminals
Protective earth
Control terminals
Terminals max.
3
1
50
Description
U1, V1, W1
1 to 50
Connecting voltage max.
750 V
-
250 V
Type of customer connection Screws
Screws
Screws
Cross section max.
10 mm
2
10 mm
2
2.5 mm
2
flexible, 4 mm
2
solid
AUMA plug/ socket connector
Technical data
Power connections
1)
Protective earth
Control terminals
No. of contacts max.
6 (3 are used)
1 (leading contact)
50 pins/ sockets
Description
U1, V1, W1, U2, V2, W2
1 to 50
Connecting voltage max.
750 V
-
250 V
Current max.
25 A
-
16 A
Type of customer connection Screws
Screw for ring lug
Screws, crimping (option)
Cross section max.
6 mm
2
6 mm
2
2.5 mm
2
Material: Pin/socket carrier Ryton
Ryton
Ryton
Contacts
Brass (Ms)
Brass (Ms)
Brass, tin plated or gold plated (option)
Threads for conduit entries
2)
2 x Pg 21; 1 x Pg 13.5 or
1 x M 20 x 1.5 / 2 x M 25 x 1.5
Other thread sizes and thread types e.g. NPT threads as well as a variety of threads for conduit entries are available on
request. Suitable cable glands can be supplied on request if specified beforehand.
1) Suitable for copper wires. For aluminium wires, please contact AUMA
2) Sealed with plug on delivery
Table 4: Technical data electrical connection
Figure E-4: Parking frame (accessory)
