3
05.01
3.4 Direct position sensing
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©
Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
3.4.4
Signal amplifier electronics
The signal amplifier electronics (SVE) is used for encoders with current signals
between the encoder and drive module to convert the current signals into volta-
ge signals 1 Vpp .
The signal amplifier electronics were developed for optical encoder systems
equipped with photodiodes and no additional supplementary electronics (exam-
ple, ROD 456 from the Heidenhain company). However, there are many encod-
er systems in the market with integrated electronics where the behavior of cur-
rent signals is only roughly emulated. As a result of the many options available,
a general statement regarding the compatibility between the encoder, SVE and
closed–loop control cannot be made.
Notice
For new applications, no longer use encoders with current signals, as voltage
signals offer a higher noise immunity.
The signal amplification electronics can be used in conjunction with the
following control modules:
SIMODRIVE 611 digital High Standard or High Performance
SIMODRIVE 611 universal HRS/E HRS for encoders with sin/cos 1Vpp
HLA module
ANA module
Table 3-2
Technical data of the signal amplifier electronics
Technical specifications
Signal shape
Sine/cosine
Input signal
7
μ
A
PP
to 16
μ
A
PP
Output signal
1V
PP
Max. signal frequency
300 kHz
Max. operating voltage
At the remote sense
8 VDC
Max. operating current
200 mA
Encoder voltage supply
5 VDC
5%
Max. encoder current supply
120 mA
Dimensions (W x H x D)
54 mm x 121 mm x 57 mm
Order number
6SN1115–0AA12–0AA0
Housing degree of protection
IP65
3 Motor Selection, Position/Speed Sensing
02.12