00194440-10_SM_X-Series_Customer_en - 第310页

Settings Axis Control 5.2.5 TwinHead 310 Service Manua l SIPLACE X Series Travel curves for TwinHead Z axis in free space (down - wards) TwinHead - Z axis in fr ee space (downwards) 1. Torque- forming m otor curre nt 500…

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Settings
5.2.5 TwinHead Axis Control
Service Manual SIPLACE X Series 309
Measurement Setup with SAT Box and A363
Measurement setup with SAT box
Assignment of output leads by the SIPLACE Axis tester and connection to the oscilloscope.
The axis dynamics are checked with continuous operation in free space. A motor current signals is trans-
mitted at the V nominal output. The uncommutated current signal (signal 3) shows the friction for the axis
system. The current signal amplitude increases as the friction rises.
The positioning time for the Z axis is 84 ms +/-2 ms.
SITEST:
► Select TwinHead ==> Axis functions
==> Select segment ==> Select Z axis
==> Axis continuous run
==> Edit and accept values:
Target position: 50000 µm = 100000 digits; = travel range for placement
Positioning type: absolute. Waiting period: 100 ms
► Press the START button if required.
1 The Vnom. output signal is currently not
needed for checking the HF dynamics.
3 Position deviation connected at CH1
2 Uncommutated current signal (Vreg), con-
nected to CH2
4 End position signal: connected at CH3
Settings
Axis Control 5.2.5 TwinHead
310 Service Manual SIPLACE X Series
Travel curves for TwinHead Z axis in free space (down
-
wards)
TwinHead - Z axis in free space (downwards)
1. Torque-forming motor current 500 mV/20 ms
2. Position deviation 500 mV/20 ms
3. Positioning time approx. 75 ms
TwinHead - Z axis in free space (upwards)
1. Position deviation 500 mV/20 ms
2. Torque-forming motor current 500 mV/20 ms
3. Positioning time approx. 75 ms
TwinHead - Z axis in free space (downwards)
Target position: 54200 digits); camera focus range
Positioning type: absolute waiting period: 100 ms
1. Torque-forming motor current 500 mV/20 ms
2. Position deviation 500 mV/20 ms
3. Positioning time approx. 57 ms
Settings
5.2.5 TwinHead Axis Control
Service Manual SIPLACE X Series 311
Checking the Force Sensor Function
SITEST
► Select TwinHead ==> Axis functions
► Position the gantry over the conveyor edge. ==> Select segment
==> Select Z axis ==> Axis dynamics ==> Edit and accept values:
Travel profile down: 5 (2 N), 7 (5 N and 10 N), 25 (15 N) travel profile up: always 2
Waiting period up/down: 500 ms
Force down: 2, 5, 10, or 15 N
► Press the START button if required.
Evaluation of oscillograms:
The placement force is calculated from several factors, such as the Z axis weight, a motor constant, lin-
ear guidance friction and the torque-forming motor current. The spring pretension and force sensor val-
ues also influence the placement force.
This means that, if these values are not entered correctly, it will not be possible to reach the set place-
ment forces.
By using the oscillograms, the torque-forming motor current value during the end position signal can be
used as a reference point for the placement force.
If the placement force is 5 N, the oscillogram should show a torque-forming motor current value (meas-
ured against GND) of near 500 mV, after the end position signal (1 V = 1 A). The factors specified above
are not considered here, leading to relatively high tolerances.
TwinHead - Z axis in free space (upwards)
1. Position deviation 500 mV/20 ms
2. Torque-forming motor current 500 mV/20 ms
3. Positioning time approx. 57 ms
TwinHead - Z axis with 1N placement force (downwards)
1. Torque-forming motor current 500 mV/20 ms
2. Amplitude approx. 100 mV
3. Position deviation 5 V/20 ms
4. Positioning time approx. 78 ms