gefran POS-MINI SIEIDrive Instruction Manual page 38

Case 2:
• Starting point: QualCnf = 2 or 3, the axis is engaging the zero cam.
1. Zero cycle start.
2. The axis moves with a ZeroSpd speed so as to disengage the zero cam. If the axis movement is
opposite to the zero cam direction: stop the axis and set the zero speed with –ZeroSpd. Repeat the
operations.
3. After disengaging the zero cam, the encoder first met home switch starts the initialization sequence of
the real value.
4. The axis stops. The point where the axis stops does NOT correspond to the 0 value.
Positive direction
+
Mechanical
Minimum
Track
-250.34
lower
limit
Home switch
Lower limit switch
Software lower limit switch
Zero slot
Encoder used
for initialization
2
1
Case 3:
• Starting point: QualCnf = 0 o 1.
1. Zero cycle start.
2. The axis moves with a ZeroSpd speed. If the moving direction is not the required one: stop the axis
and set the zero speed with –ZeroSpd. Repeat the operations.
3. The first met home switch starts the initialization sequence of the real value.
4. The axis stops. The point where the axis stops does not correspond to the 0 value.
Positive direction
Mechanical
Minimum
Track
-250.34
lower
limit
Lower limit switch
Software lower limit switch
38
3 4
+
Zero slot
Encoder used
for initialization
1
—————— Instruction manual ——————
GEFRAN
2
4
3
Track
Maximum
upper
+1399.66
limit
Upper limit switch
Software upper limit switch
Encoder turns
Track
Maximum
upper
+1399.66
limit
Upper limit switch
Software upper limit switch
Encoder turn