2 System Configuration
2
05.01
2.6 Control units
2-54
© Siemens AG 2008 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 05/2008 Edition
S SIMODRIVE 611 universal E HRS (economic high resolution) as 2–axis
control units for encoders:
– sin/cos or
– EnDat or
– TTL (only PROFIBUS DP interface for the controller)
Table 2-3 Comparison table
Control unit with 611 universal High Standard
Closed–loop
control
High Performance
Closed–loop
control
Max. electrical fundamental frequency for motor 1400 Hz 600 Hz 1400 Hz
Encoder limit frequency, motor encoder 350 kHz 200 kHz 350 kHz (420 kHz)
1)
Encoder limit frequency, motor encoders for Safety
Integrated
– 200 kHz 300 kHz (420 kHz)
1)
Encoder limit frequency, direct measuring system 350 kHz 200 kHz 350 kHz (420 kHz)
1)
Encoder limit frequency resolver 12–bit 432 Hz
14–bit 108 Hz
– –
Encoder limit frequency, direct measuring system for
Safety Integrated
– 200 kHz 300 kHz (420 kHz)
1)
Pulse multiplication:
S Incremental encoder
S Resolver (14/12–bit)
2048
4096/16348
128
–
2048
–
Maximum cable length, encoder with voltage signal 50 m 50 m 50 m (20 m)
1)
Smooth running characteristics (measure of the posi-
tion fluctuation by n
set
in the range 10% n
N
referred
to a 10 mm spindle pitch/motor revolution)
S 1–axis version
S 2–axis version
0.1 µm
0.1 µm
0.2 µm
1.5 µm
0.1 µm
0.1 µm
1) The following limitations/secondary conditions apply for 420 kHz:
– Cable to be used: Siemens cable, Order No. [MLFB]: 6FX2002–2CA31–1CF
– Maximum permissible encoder cable length: 20 m
– Encoder characteristics: ”–3dB cutoff frequency” greater than or equal to 500 kHz
Examples for permissible encoders: ERA 180 with 9000 pulses/revolution and
ERA 180 with 3600 pulses/revolution manufactured by Heidenhain
– Amplitude monitoring up to 420 kHz is active.
2.6.4 NCU box for SINUMERIK 840D
If the digital drive modules are operated in conjunction with the SINUMERIK
840D CNC control system, then the NCU box must be located immediately to
the right of the infeed module.
Fig. 2-5 Digital closed–loop control with SINUMERIK 840D
For SINUMERIK
840Di powerline
SINUMERIK 802D
05.08
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