Etel DSC Series User Manual

Operation & Software Manual
178
Direct Drives & Systems
Chapter C: System functions ETEL Doc. - Operation & Software Manual # DSC2P 903 / Ver. F / 3/6/05
Remark: If the measure is done between +XAOUT3 and GND, the voltage will be divided by two :11.23 / 2
= ~5.61V (refer to the 'DSO-HIO User's Manual' for more information).
The digital analog converter (DAC) may induce a small offset and amplitude error. These errors can be
removed with the DAO (DAc Offset) and DAA (DAc Amplitude) commands which are an alias of parameters
K156 and K157.
Remark: For the DSCDP and DSCDL, if parameter K156 or K157 is modified, the SAV command must be
executed on both axes.
Monitorings M173, M174, M175 and M176 allow the user to read the value of the 4 analog outputs by taking
parameters K156 and K157 into account:
Here is the formula giving the values on the analog outputs after the amplitude and offset correction (M17x is
M173, M174, M175 or M176 depending on the output number corresponding to the depth of parameter K173):
Example with K156 = 100, K157 = 2
14
and a DAC with an offset of -50 inc.
• Analog outputs with 'source register' mode
The user can allocate to the XAOUT1, XAOUT2, XAOUT3 and XAOUT4 analog outputs of the DSO-HIO, the
values of any register (X, K or M) present in the controller. To do so, the following commands (or parameters)
must be used (the 4 depths of the parameters correspond to the 4 analog outputs):
K Alias Name <p1> Comment
K156 DAO:[depth].<axis>=<p1>
Analog
output
offset
-32768
to
+32767
Modifies the offset of the signal sent to the analog outputs (XAOUT1 to
XAOUT4). The 4 depths of the parameter correspond to the 4 analog outputs.
K157 DAA:[depth].<axis>=<p1>
Analog
output
amplitude
-32768
to
+32767
Modifies the amplitude of the signal sent to the analog outputs (XAOUT1 to
XAOUT4). The 4 depths of the parameter correspond to the 4 analog outputs.
M Name Comment
M173 Analog output1 status Gives the value on the analog output 1
M174 Analog output2 status Gives the value on the analog output 2
M175 Analog output3 status Gives the value on the analog output 3
M176 Analog output4 status Gives the value on the analog output 4
M17x
K157
2
15
-------------
K173 K156+()⋅=
Source
K173
(XAOUT)
Inc.
+8192
-8192
DAC
D
A
Analog
output
DAC
offset
K156
(DAO)
DAC
amplitude
K157
(DAA)
+8292
-8092
+100
+4146
-4046
+50
-20V
+20V
Inc.
Inc.
-10V
+10V
M17x
(12 bits)

Etel DSC Series Specifications

General

Brand	Etel
Model	DSC Series
Category	Controller
Language	English