Samson 3374 Mounting And Operating Instructions page 11

Table 3: Common data
Type 3374-xx Actuator
Input signal
Position feedback
Binary input
Binary output
Applications
Display
Rotary pushbutton
Interfaces
Motor deactivation
Permissible temperatures
Ambient
Storage
Ambient conditions
Degree of protection acc. to EN 60529
The permissible medium temperature depends on the valve on which the electric actuator is mounted. The limits in
1)
the valve documentation apply.
EB 8331-4 EN
Voltage input 0/2 to 10 V, adjustable · R
Current input 0/4 to 20 mA, adjustable · R
Note: Only one of the two inputs may be connected.
Voltage 0/2 to 10 V, adjustable · Error message 12 V
Resolution 1000 steps or 0.01 V
Load Minimum 5 kΩ
Current 0/4 to 20 mA, adjustable · Error message 24 mA
Resolution 1000 steps or 0.02 mA
Load Max. 200 Ω
Not galvanically isolated · Polarity configurable
Normal polarity Floating · Galvanically isolated · Max. 24 V DC/50 mA
No short-circuit protection · Polarity configurable
Positioner The travel follows the input signal
PID controller Simple fixed set point control
Two-step mode Two-step behavior, control over binary input
Icons for functions and codes; with backlight
Operating control for on-site operation to select and con-
firm codes and values
Standard RS-232 · For point-to-point connection to communication
participants or for memory pen · Permanently installed
Connection: RJ-12 connector socket at front
By torque-dependent limit switches
1)
5 to 60 °C
–25 to 70 °C
5 to 95 % relative humidity, no dew formation
IP 54 with cable entries
IP 65 with cable glands
Suspended mounting position not approved according to
EN 60664
Design and principle of operation
= 20 kΩ
i
= 50 Ω
i
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