00194440-10_SM_X-Series_Customer_en.pdf - 第304页
Settings Axis Control 5.2.5 TwinHead 304 Service Manua l SIPLACE X Series Overview of Positioni ng Times for TwinHead Positioning times f or TwinHead Axis Mode/range Positioning time Z Absolute positioning, free spac e/t…
Settings
5.2.5 TwinHead Axis Control
Service Manual SIPLACE X Series 303
5.2.5
5.2.5 TwinHead
TwinHead
5.2.5.1
5.2.5.1 Overview of Axis Control for Z and D Axes
Overview of Axis Control for Z and D Axes
Axis control (shows D-axis as example)
The axis control system of the closed control loop for the
TwinHead consists of the following main components.
▪ Axis controller A363 with VC3 controller or A364
▪ Servo amplifier (SDS)
▪ Motor
▪ Position measurement system incremental scale and
encoder
1. Axis controller board A363 with VC3 controller (VC =
Velocity Commutation/speed commutation controller)
2. Control signals I nom "W" and I nom "U"
3. Servo amplifier function: motor current limiter dimen-
sioned by semiconductor or motor load - amplification
by axis controller signals. Determination of third mo-
tor current signal. Generation of three (2) AC motor
signals from the DC supply.
The Z/D servo output signals are directly connected
to the motors. This guarantees operator safety when
the safety covers are opened.
4. The Z axis has 3-phase AC motor with integrated
temperature sensor.
D axis has a 2-phase motor
5. The motor and the incremental encoder are fixed (rig-
id) to one another.
6. Incremental encoder: determines the exact position
of the axes, due to the track signals.
Settings
Axis Control 5.2.5 TwinHead
304 Service Manual SIPLACE X Series
Overview of Positioning Times for TwinHead
Positioning times for TwinHead
Axis Mode/range Positioning time
Z Absolute positioning, free space/travel range 90000 digits = 45000
µm (resolution 0.5 µm)
75 ms +/-3 ms
Z Absolute positioning, free space/travel range 54200 digits = 27100
µm (resolution 0.5 µm)
57 ms +/-3 ms
Z Current sensor (for force measurement) on conveyor edge 516
nozzle travel profile 5, force 2 N
approx. 78 ms*
*see notes below
Z Current sensor (for force measurement) on edge of conveyor side
516 nozzle, travel profile 7, force 5 N
approx. 78 ms*
*see notes below
Z Current sensor (for force measurement) on conveyor edge 516
nozzle travel profile 7, force 10 N
approx. 65 ms*
*see notes below
Z Current sensor (for force measurement) on conveyor edge 516
nozzle travel profile 25, force 15 N
approx. 70 ms*
*see notes below
D 10000 digits = 10 degrees 90 ms +/-10 ms*
*see notes below
D 90000 digits = 90 degrees 150 ms +/-20 ms*
*see notes below
D 180000 digits = 180 degrees 190 ms +/-20 ms*
*see notes below
NOTICE
Z-Axis
The Z axis positioning time in the current or force sensor mode does not permit direct conclu-
sions about the functions. To check the function of these modes, you need to record oscillo-
grams or perform a force measurement during placement.
NOTICE
D axis
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.
Settings
5.2.5 TwinHead Axis Control
Service Manual SIPLACE X Series 305
5.2.5.2
5.2.5.2 TwinHead Axis Track Signals
TwinHead Axis Track Signals
The track signals play a greater role with the new drive concept for HF machines. They are responsible
for the exactly and precise positioning of the axes and are used as the only feedback signal in the closed-
loop control system, meaning that they have an important influence on the axis dynamics.
Measurement Setup
Measurement setup for the analog track signals of the Twin head Z axis
The analog track signals of the TwinHead Z axes are counted by the incremental encoder.
NOTICE
Measurement only with Axis Test Box
The digital track signals for the TwinHead can only be measured at the Axis Test Box. The track
signals for the TwinHead D axis can only be measured as digital signals at the Axis Test Box.