Manual Override; Auxiliary Switches; Setting The Switches - Siemens ASC77.2U Installation Instructions

Document No. 129-420
Installation Instructions
December 13, 2004

Manual Override

NOTE: When EAS is installed, you can still access the
manual override capability as shown in Figure
11.
0∞
GEB
GMA
Figure 11. Manual Override.

Auxiliary Switches

CAUTION:
There should be no load on the actuator
when setting the auxiliary switches.

Setting the Switches

With the actuator in the full-closed (0°) position, press in
and turn with a Phillips screwdriver to the desired
setting. Release pressure to set the switch.
The switch is now set.
5
5
85
85
15
15
75
25
75
65
35
45 55 25
65
55 45 35
Figure 12. Press In, Turn to Adjust, Release to Set Switch.
Page 4 of 5
GBB/GIB
GCA
5
5
85
85
15
75 15
25
75
65
35
45 55 25
65
55 45 35
A
0∞
5∞ 10∞ 20∞
5∞
A
S1 S1
S2 S3 S2 S3
Figure 13. Example of Switches Set to 5° and 85°.
Wiring
WARNING:
Do not mix operations. Apply only line voltage
or only Class 2 voltages to the switching
outputs of both auxiliary switches A and B.
24 Vac...250 V/6(2) A
S2 S3
Figure 14. Wiring Diagram.
Wiring Designation
Wire Code Color
S1 Gray/red
S2 Gray/blue
S3 Gray/pink
S4 Black/red
S5 Black/blue
S6 Black/pink
Siemens Building Technologies, Inc.
B
30∞ 70∞ 85∞ 90∞
2∞
B
S4 S4
S5 S6 S5 S6
S1 S4
A B
S5 S6
Switch - Function
A Input
A – NC
A – NO
B Input
B – NC
B – NO