Siemens LMV5 Quick Start Manual page 67
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Also See for LMV5:
- Technical instructions (374 pages) ,
- Basic documentation (278 pages) ,
- Manual (39 pages)
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Checking Actuator Operation
After the actuators are addressed and the direction of rotation for each actuator is set, the actuator
shaft can be coupled to the valve / damper that it will drive.
The direction or rotation for each actuator can be viewed / adjusted under Parameters & Display >
Actuators > DirectionRot.
Standard rotation – Clockwise (CW) when the actuator shaft is pointed away from you or
Counterclockwise (CCW) rotation when the shaft it pointed directly at you.
Reversed rotation – CCW when the when the actuator shaft is pointed away from you or CW
rotation when the shaft is pointed directly at you.
IMPORTANT
: Make absolutely certain that when the actuator is at 0 degrees the valve / damper
that it is coupled to is in fact closed. The actuator position must be verified by
reading the actuator position on the AZL5 display since this reading accounts for
the programmed direction of rotation.
Actuator positions can be viewed under:
Params & Display > Ratio Control > Gas (Oil) Settings > CurveParams
Also, on an LMV52 only, by pressing enter key, while in "Normal Operation"
Actuators should be coupled to valve / dampers with robust, near zero lash flexible couplings to
avoid binding due to minor shaft misalignment but still retain highly accurate valve / damper
positioning.
After the actuators are properly coupled to the valve / damper that they are driving, they should be
stroked through their normal range of operation to check for smooth operation.
Actuators with the coupled valve / damper can be stroked through their range of operation under:
Params & Display > Ratio Control > Gas (Oil) Settings > CurveParams
The actuators can be stroked with the burner off. This can be done by entering a point (typically
point 1) and moving the actuators up and down individually. When finished verifying the stroke of
the actuator, do not save the changes to the point.
Note: Check rotation of ALL actuators BEFORE commissioning combustion curves. This includes
the oil actuator BEFORE commissioning the combustion curves on gas.
If the direction of rotation is changed for any actuator, ALL combustion curves (both fuels)
MUST be deleted.
LMV5 QSG Rev 4
Sec 4
Pg 11
www.scccombustion.com
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