Product Overview

OpenAir GMA Series Spring Return, 62 lb-in, Rotary, Electronic Damper Actuators Technical Instructions
Document Number 155-315P25
January 26, 2011
Siemens Industry, Inc. Page 5
Specifications,
continued
Feedback potentiometer (GMA 132.1U)
Sliding contact (P2) 0 to 1000 ohm <10 mA
Load <1W
Voltage UL-Class 2 (SELV/PELV for CE)
<24 Vac/dc
Miscellaneous
Pre-cabled connection 18 AWG (0.75 mm
2
)
Cable length 3 feet (0.9 m) length
Noise level 40 dBA
Life cycle Designed for over 60,000 full stroke
cycles and a minimum of 1.5 million
repositions at rated torque and
temperature
Dimensions 8-3/8-in. H × 3-1/4-in. W × 2-2/3-in. D
(212 mm H × 83 mm W × 68 mm D)
Weight 2.9 lbs (1.3 kg)
Country of Origin USA
Actuator
Components
14
13
15
EA0917R1
EA0919R1
13
12
2
3
4
5
6
7
16
1
11
10
9
17
18
8
Figure 1. Components of the GMA Spring
Return Actuator.
Legend
1. Actuator housing
2. Positioning scale for angle of
rotation
3. DIP switches and cover
4. Span adjustment
5. Offset (start point) adjustment
6. Mounting bracket
7. Connection cable for power and
control signals
8. Connection cable for auxiliary
switches or feedback potentiometer
9. Gear train lock pin
10. Manual override wrench opening
and direction of rotation arrow
11. Auxiliary switches A and B
12. Position indicator
13. Self-centering shaft adapter
14. Shaft adapter locking clip
15. Position indicator adapter
16. Key for manual adjustment
17. Adjustment tool for: auxiliary
switches (11), offset/span (4 and 5),
and lock pin (9)
18. 1/2-inch NSPT conduit connections