Data Sheet for Product

Technical Instructions OpenAir
®
GQD Series, Spring Return, 20 lb-in, Rotary, Electronic Damper Actuators
Document Number 155-760
June 5, 2019
Page 6 Siemens Industry, Inc.
CAUTION:
Mixed switch operation to the switching outputs of both dual
end switches (5° and 85°) is not permitted.
Either AC line voltage from the same phase must be applied
to all six outputs of the fixed dual end switches, or UL-Class
2 voltage must be applied to all six outputs.
DIP Switch
Functionality
GQD 151.1P
NOTE: The black position indicates the active switch setting.
Description
Label
Description
Function
Inverse Acting
Direct-Acting
Input Signal Inversion
Inverse-Acting Feedback
Direct-Acting feedback
Feedback Signal inversion
Not In Use
Figure 7. DIP Switches.
Input Signal Inversion
Allows inverting the control input signal
The arrow direction indicates opening or closing (closing or opening) when
operating an actuator with a given control signal.
= Direct acting (Factory setting)
Input signal 2 Vdc ► fail-safe position
= Inverse acting
Input signal 10 Vdc ► fail-safe position
Feedback Signal Inversion
Allows inverting the position feedback output signal
= Direct acting feedback (Factory setting)
Fail-safe position ► Output signal 2 Vdc
= Inverse acting feedback,
Fail-safe position ► Output signal 10 Vdc
Wiring
All wiring must conform to NEC and local codes and regulations.
Use earth ground isolating step-down Class 2 transformers. Do not use
autotransformers.
The maximum rating for a Class 2 step-down transformer is 100 VA. Determine
the supply transformer rating by summing the VA ratings of all actuators and all
other components used. It is recommended that one transformer power no more
than 10 actuators (or 80% of its VA).
WARNING:
Installations requiring Conformance:
• All wiring for 24 Vac/dc actuators must only be safety extra-low
voltage (SELV) or protective extra-low voltage (PELV) per HD384.
• Use safety transformers per EN61558 with double isolation,
designed for 100% duty-cycle for supplying SELV or PELV circuits.
• Over-current protection for supply lines is maximum 10A.