Siemens Sinumerik 840D Series Function Manual page 85
Hla module
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02.99
10.03
Valve spool
setpoint
(manipulated
voltage)
Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
For an explanation of how to use the function generator, please refer to
References:
/FBA/, DD2 "Speed control loop"
/SHM/, SIMODRIVE 611 "Manual for MCU 172A"
An overview of the function generator functions provided for HLA is given below,
with only the purely hydraulic-specific functionality for HLA described in detail.
Table 3-8
Signal (operating mode) for valve spool setpoint
Trigger
Valve spool setpoint in velocity controller cycle, valve
control loop closed, velocity control loop open
Table 3-9
Signal (operating mode) for valve spool setpoint parameter settings
Parameters
Signal type: Square-wave
Amplitude
Period
Pulse width
Offset
limitation
Tr. 1: Valve stroke setpoint
Tr. 2: Actual valve stroke
1.9890
2.0510
V
V
-2.0260
-2.0610
0.0000
Fig. 3-38
Servo trace of actual valve value with square-wave signal type to valve
setpoint
3 Startup
3.11 Start-up functions
Signal type
Square-wave
Physical unit
V
ms
ms
V
V
t [ms]
200.0000
3-85
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