9300 Servo PLC
System blocks
2.9 DFOUT_IO_DigitalFrequency
2-35
L
ServoPLC EN 2.0
Digital frequency output X10
Technical data
Connection: Sub-D female connector, 9-pole
Output frequency: 0 - 500 kHz
Current capacity: max. 20 mA per channel
Load capability: • For parallel connection, a maximum of three slaves can be connected.
• With a series connection, any number of following drives can be connected.
Properties
• Two-track with inverse 5 V signals and zero track
• When PIN 8 (EN) shows a LOW level, the master is initialized (e.g. if the mains was disconnected).
The slave can thus monitor the master.
Assignment of the Sub-D connector (X10)
PIN 1 2 3 4 5 6 7 8 9
Signal B A A +5 V GND Z Z EN B
B
B
A
A
Z
Z
CW rotation: CCW rotation:
B
B
A
A
Z
Z
Track
A
leads track B by 90º
( DFIN_nIn_v = positive value
lags behind track B by 90º
( DFIN_nIn_v = negative value)
B
B
A
A
Z
Z
Track
B
- -
Signal sequence with phase shift (CW rotation)
Note!
Caused by the system the digital frequency output X10 has a delay time
d
which is a combination of
T
d
= task cycle time (process image cycle) - 1 ms
Example: If
DFOUT_nOut_v
is overwritten within a “10 ms task”, the signal at X10 has a delay time
T
d
of 9 ms (10 ms - 1 ms).
Digital frequency input X9
• See SB DFIN_IO_DigitalFrequency . (^ 2-26)
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