00195376-05_SM_D1_D1i_D2_D2i_EN.pdf - 第217页
Settings 6.3.2 Checking the Track Signals Track Sig nals and Zero Pulse Service Manual SIPLACE D1/D1i/D2/D2i 217 6.3.2.2 6 . 3 . 2 . 2 D ig it a l T r a c k S ig n a ls Digital Track Signals See also 6.3.1.2 Measurin…
Settings
Track Signals and Zero Pulse 6.3.2 Checking the Track Signals
216 Service Manual SIPLACE D1/D1i/D2/D2i
► Voltages V/Division decrease up to 0.5 V/Div.
► Set the track signal tester switch to "Measure".
► Switch the oscilloscope to X/Y --> Illuminated point will appear!
► Move the point into the middle of the display.
► Manually move the selected axis back and forth.
Analog track signals A and B in X/Y oscilloscope mode
► The adjacent picture should appear on the oscillo-
scope.
NOTICE! A new version of the incremental en-
coder (one field lens) can recognize signals from 1.8 to
3.6 Vss.
Analog track signals 90° phase shift
► Switch the oscilloscope from X/Y deflection to normal
mode.
► The adjacent picture should appear on the oscillo-
scope.
Settings
6.3.2 Checking the Track Signals Track Signals and Zero Pulse
Service Manual SIPLACE D1/D1i/D2/D2i 217
6.3.2.2
6.3.2.2 Digital Track Signals
Digital Track Signals
See also
6.3.1.2 Measuring the Digital Zero Pulse Signal [ ➙ 213]
6.3.2.1 Analog Track Signals [ ➙ 215]
Digital track signals 90° phase shift
Legend
1. Track A
2. Track B
The digital track signals can only be measured at the Axis
Test Box.
Set both channels to 1 V / 20 ms. Note the 90 degrees
phase displacement.
The measurement structure for the axis test box is de-
scribed in section.
Settings
Axis Control 6.4.1 Axis Control Assemblies
218 Service Manual SIPLACE D1/D1i/D2/D2i
6.4
6.4 Axis Control
Axis Control
6.4.1
6.4.1 Axis Control Assemblies
Axis Control Assemblies
6.4.2
6.4.2 Checking the X Axis Dynamics
Checking the X Axis Dynamics
The inspection of dynamics occurs with the following signals:
▪ Deviation of position
▪ Uncommutated target current value
▪ Vnom. – speed signal
▪ End signal (adapter board, axis in target position)
▪ Actual position = target position signal (upstream end position signal)
"Axis control" assemblies
The control loop for the X and Y axis consists of the fol-
lowing parts:
▪ Axis board A364
▪ Servo board (TDS)
▪ 3 phase AC linear motor
▪ Measurement system (incremental scale and encod-
er (read unit))
To protect the linear motors from overtemperature, all
these motors have an internal temperature sensor.
Legend
1. Axis board A364
2. Control signals I
nom "W"
and I
nom "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, overtempera-
ture longer than 2.5 sec.
5. 3-phase AC linear motor for X and Y axes with inte-
grated 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 sig-
nals for the axis control.
The servo board directly controls the linear motor, the in-
termediate circuit voltage is 250 V.
NOTICE
Before adjusting the axes, make sure that the machine has reached its operating temperature.
Switch the machine on at least 30 minutes before you begin work.