User Manual

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Building Technologies CC1N7814en
02.02.2018
Technical data (cont’d)
Storage DIN EN 60721-3-1
Climatic conditions Class 1K3
Mechanical conditions Class 1M2
Temperature range -20...+60 °C
Humidity <95 % r.h.
Transport
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-2
Class 2K2
Class 2M2
-20...+70 °C
<95 % r.h.
Operation
Climatic conditions
Mechanical conditions
Temperature range
DIN EN 60721-3-3
Class 3K3
Class 3M3
-20...+60 °C
Humidity <95 % r.h.
Installation altitude Max. 2,000 m above sea level
Warning!
Condensation, formation of ice and ingress of water are not permitted!
If this is not observed, there is a risk of loss of safety functions.
Function
The actuators SQM45... / SQM48... are of robust design and have a gear train with only
small backlash.
Control and position feedback take place via a bus system (CAN).
The bus cable is also used for powering the actuators.
The actuators are driven by stepper motors and can be positioned with a resolution of
0.1°.
The characteristics and settings (running time, direction of rotation, limit positions) of
the SQM4... are determined by the controlling basic unit (e.g. LMV5...; for details, refer
to the Basic Documentation P7550 of the LMV5...).
The running times of the associated controlling elements are varied by the basic unit
depending on the burner’s control phase (e.g. startup phase: short running time;
operation: long running time).
Environment conditions