Bus Interfaces - Siemens Sinumerik 840D Series Function Manual
Hla module
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04.00
10.03
Activating the
analog output
Output voltage
range
5.1.6
Bus interfaces
Drive bus
Device bus
Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
Bit
23
DAC with SF0
DAC with SF1
DAC with SF8
DAC with SF16
LSB = Least Significant Bit
Fig. 5-3
Representation of the shift factor
The display for activating and setting the parameters of the DAC outputs is
called up from the basic machine display by pressing the Start-up /
Drive/Servo / Configur. DAC soft keys.
Use the Start soft key.to activate the configuration. Active DACs are identified
(active/inactive) on the left of the display. The output is ended with Stop (active/
inactive).
The selected signals are active after POWER ON.
The DAC operates on a voltage of between 0 V and +5 V. The 2.5 V output volt-
age corresponds to the zero point of the displayed signal. A two's complement
is used in the digital/analog conversion, see Fig. 5-3.
+5V
U
DAC
2.5V
00
0V
Fig. 5-4
Analog output voltage range
(see SIMODRIVE 611A/D)
S
X141:
Input
S
X341:
Output
A bus terminator must be plugged into the last module.
(see SIMODRIVE 611A/D)
S
X151:
Device bus
5 Hardware Drive Functions
16
15
SF = Shift Factor
7F
( 0111 1111
Hex
Hex
80
(1000 0000
Hex
5.1 Interface overview
8
7
0
(LSB)
)
d
00
Hex
FF
Hex
)
d
5-183
- Quick Links:
- Typical Applications
- General
- Drive Configuration
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