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Siemens Building Technologies Basic Documentation LMV5... CC1P7550en
HVAC Products 7 Display and operating unit AZL5... 13.08.2004
To select the direction of rotation, choose the following menu on the AZL5…:
«Params & Display» → «Actuators» → «DirectionRot»
You are given the choice of «Standard» and «Reversed»:
Standard (counterclockwise) Reversed (clockwise)
90°
0°
0°
90°
7550d29/0903
Facing the end of the drive shaft (
not mounted)
To check the direction of rotation, every actuator can be moved in the home position in
fault-free standby mode.
The parameter is filed in the basic unit so that the direction of rotation need not be reen-
tered when replacing the actuator.
Note: After setting the ignition positions or curves, the direction of rotation can
only be changed after deleting the curves and ignition positions on setting
menu «Delete Curves».
This facility makes it possible to reset an already addressed actuator in the case of a re-
placement, repair, or if addressing is wrong (wrong address assignment by the user).
For that purpose, the user must press the actuator’s addressing button for at least 10
seconds when the actuator is in normal operation. The actuator will then reset its ad-
dress which is indicated by the LED when steady on.
LED steady ON
Time
7550d11E
OFF
ON
The actuator gives the addressing number via the LED. The blink interval is 200 ms:
1 pulse ⇒ air actuator
2 pulses ⇒ gas actuator
3 pulses ⇒ oil actuator
4 pulses ⇒ auxiliary actuator
5 pulses ⇒ auxiliary actuator 2
6 pulses ⇒ auxiliary actuator 3
After each blink cycle, there is a pause of 1.2 seconds.
Example of an actuator for gas
Time
7550d12E
OFF
ON
Direction of rotation
Reset
Operational status indication
by LED on the actuator
Power is fed to
unaddressed actuator
Button for addressing is
pressed (display during
addressing procedure)
ddressing completed,
normal operation of actuator
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