00194440-10_SM_X-Series_Customer_en - 第314页

Settings Axis Control 5.2.5 TwinHead 314 Service Manua l SIPLACE X Series Checking the TwinHead D Axis Dynamics Measurement Setup The axis d ynamics of t he D axis are checked along various trave l ranges. SITEST ► Selec…

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Settings
5.2.5 TwinHead Axis Control
Service Manual SIPLACE X Series 313
5.2.5.4
5.2.5.4 Axis Control of TwinHead D Axis
Axis Control of TwinHead D Axis
TwinHead - Z axis with 15N placement force (down-
wards)
1. Torque-forming motor current 500 mV/20 ms
2. Amplitude approx. 1500 mV
3. Position deviation 5 V/20 ms
4. Positioning time approx. 70 ms
The D-axis is driven by a 2-phase AC motor, fed from
60 V DC voltage. Axis control is via 2 control signals from
the VC3 controller (phase shift 90°) I nom "W" and I nom
"U".
1. Axis controller board A363 with VC3 controller (VC =
Velocity Commutation) or A 364
2. Control signals
3. Servo amplifier
4. LEDs on servo amplifier:
5. 2 Phase AC motor.
6. Between the motor and the incremental encoder
there is a fixed mechanical connection.
7. Read unit: transmits the exact position of the axis
(track signals).
The servo board controls the AC motor directly.
Settings
Axis Control 5.2.5 TwinHead
314 Service Manual SIPLACE X Series
Checking the TwinHead D Axis Dynamics
Measurement Setup
The axis dynamics of the D axis are checked along various travel ranges.
SITEST
► Select TwinHead ==> Axis functions ==> Segment
==> Select DP axis ==> Axis continuous run ==> Edit and accept values:
Target position: 1000 1/100° = 10° = 10000 digits;
Positioning type: absolute.
Waiting period: 200 ms
► Press the START button if required.
NOTICE
Deviating positioning times
The positioning times between the left and right turns of the sleeve may deviate from one an-
other considerably. However, the time characteristic of the TwinHead in not critical, due to the
placement process.
NOTICE
Same measurement procedure
The measurement procedure follows the same preparations and procedures as for the Z axis
Travel curves for D axis with 10 degrees rotation
TwinHead - D axis with 10 degrees rotation
1. Current target value 200 mV/Div
2. Position deviation 500 mV/Div
3. End position signal 5 V/Div
Target positioning time: approx. 90 ms +/-10, path 10000
digits
Time basis: 50ms/Div
Settings
5.2.5 TwinHead Axis Control
Service Manual SIPLACE X Series 315
Travel curves for D axis, 90 degrees rotation (to the right)
TwinHead - D axis with 90 degrees rotation
1. Current target value 200 mV/Div
2. Position deviation 500 mV/Div
3. End position signal 5 V/Div
Target positioning time: approx. 160 ms +/-20, path
90000 digits
Time basis: 50ms/Div
Travel curves for D axis with 180 degrees rotation
TwinHead - D axis with 180 degrees rotation
1. Current target value 200 mV/Div
2. Position deviation 500 mV/Div
3. End position signal 5 V/Div
Target positioning time: approx. 200 ms +/-20, path
190000 digits
Time basis: 50ms/Div
NOTICE
Positioning times
The positioning times for the D axis of the TwinHead are not critical, from a placement perfor-
mance perspective, provided the positioning time is below 230 ms. If the time is above this, this
will affect the placement performance.