00194614-08 Trainingsdoku. SG X-Serie_X4i SW70x (AL2)_EN - 第202页
Gantry Axis Control Assemblies Axis Control Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 202 Axis Co ntrol 6.5 Axis Control Axis Contro l Assemblies 6.5.1 Axis Control Assemblies Checkin g the X Axis D ynamics 6.5.2…
Gantry
Track Signals and Zero Pulse Checking the Track Signals
201 Student Guide SIPLACE X-Serie and X4I SW70x (AL2)
Digital T rack Signals
6.4.2.2 Digital Track Signals
To check the digital track signals, connect the track signal tester and the oscilloscope. (see "6.4.1.2
Measuring the Digital Zero Pulse Signal" [ ➙ 198])
The measurement sequence is identical to that described in "6.4.2.1 Analog Track Signals" [ ➙ 200].
Analog track signals 90° phase shift
► Switch the oscilloscope to normal operation.
► The adjacent picture should appear on the
oscilloscope.
Digital track signals 90° phase shift
Legend
1. Track A
2. Track B
Gantry
Axis Control Assemblies Axis Control
Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 202
Axis Control
6.5 Axis Control
Axis Contro l Assemblies
6.5.1 Axis Control Assemblies
Checkin g the X Axis D ynamics
6.5.2 Checking the X Axis Dynamics
The inspection of dynamics occurs with the following signals:
▪ Deviation of position
▪ Uncommutated target current value
▪ End signal (adapter board, axis in target position)
▪ Actual position = target position signal (axis test box output end position signal)
"Axis control" assemblies
The control loop for the X and Y axis consists of the
following parts:
▪ Axis card A363 with VC3 controller or A364
▪ Servo board (TDS)
▪ 3 phase AC linear motor
▪ Measurement system (incremental scale and
encoder (read unit))
To protect the linear motors from overtemperature, all
these motors have an internal temperature sensor.
Legend
1. Axis controller board A363 with VC3 controller (VC =
Velocity Commutation) or A 364
2. Control signals I
target "W"
and I
target "U"
3. Servo amplifier
4. LEDs on servo amplifier:
GREEN: power supply ON
GREEN: Servo enable, if the enable signal has been
received from the axis board.
ORANGE: Display R.M.S. current limiter shorter than
2.5 s.
RED: Error: overvoltage, overcurrent,
overtemperature longer than 2.5 sec.
5. 3-phase AC linear motor for X and Y axes with
integrated temperature sensor.
6. Between the motor and incremental encoder there is
a fixed mechanical connection.
7. Incremental encoder: transmits the exact position of
the axis. The track signals are the only feedback
signals for the axis control.
The servo board directly controls the linear motor, the
intermediate circuit voltage is 250 V.
NOTICE
Before checking the axis dynamics, make sure that the machine has reached its operating
temperature. Switch the machine on at least 30 minutes before you begin work.
Gantry
Axis Control Checking the X Axis Dynamics
203 Student Guide SIPLACE X-Serie and X4I SW70x (AL2)
Measurem ent Setup with SA T Box and A364
6.5.2.1 Measurement Setup with SAT Box and A364
Measurement setup with SAT box
CAUTION
When checking the dynamics, it may be sufficient if you check the travel times and overshoot
behavior of the axis with the SIPLACE axis tester (SAT) display and the values in the settings
tables.
However, when checking for errors, you will need to use a suitable oscilloscope for the
dynamics analysis.