Data Sheet for Product

Technical Instructions SQV Series Electromotive Valve Actuators
Document Number 155-521
June 16, 2015
Page 2 Siemens Industry, Inc.
Specifications
Power supply
Operating voltage 24 Vac + 20%
24 Vdc + 15%
Frequency 50 to 60 Hz
Fusing of supply lines Maximum 10 Amp slow
Power consumption 20 VA/7.5 W
Operating data
Positioning time open/close 40 seconds (default for 3/4-inch
[20 mm] stroke) Positioning time
depends on the DIP switch setting.
See
Table 1.
Positioning force > 247 lb (1100 N)
Nominal stroke 3/4-inch (20 mm) to
1-1/2-inch (40 mm)
Admissible temperature of medium 34°F to 248°F (1°C to 120°C)
in the valve
Signal inputs
Terminals G1, G2 3-position
Voltage 24 Vac + 20%
24 Vdc +
15%
Terminal Yu
Voltage 0 to 10 Vdc
Input impedance >
100K Ω
Terminal Yi
Power DC 4 to 20 mA
Input impedance 50 Ω
Fail-safe function
Terminal G
SQV91P30U Loss of operating voltage
Actuator stem retracted, pressure
independent valve fully open (100%)
SQV91P40U Loss of operating voltage
Actuator stem extended, pressure
independent valve fully closed (0%)
Spring return time 15 sec (for 3/4-inch [20 mm] stroke)
30 sec (for 1-1/2-inch [40 mm] stroke)
Position feedback
Position feedback U DC 0 to 10V + 1%
Load impedance >2.5K Ω resistive
Load Maximum 4 mA
Electrical connections
Wire cross-sectional areas 16 to 20 AWG
Cable entries 2 openings M20 x 1
(1/2" conduit adapter included) 1 opening M16 x 1.5
Degree of protection
Housing from vertical to horizontal NEMA 4/4X (IP 66)
Insulating class, AC/DC 24V III
Environmental
conditions
Operation
Mounting location Indoors (weather-protected)
Temperature 32°F to 122°F (0°C to 50°C)
Humidity (non-condensing) <95% rh
Transport
Temperature -22°F to 158°F (-30°C to 70°C)
Humidity <95% rh
Storage
Temperature -22°F to 149°F (-30°C to 65°C)
Humidity 5 to 95% rh