ElmoMC SimplIQ Command Reference - Manual (Page 33)

CA[34] Configure resolver, analog halls or Absolute Coarse/Fine Encoder bits in the
range of 10..16. The resolver / analog halls readout resolution is 2 16-CA[34]
bits per resolver or analog halls cycle. For example, if CA[34]=4 the
feedback reads 4096 bits per cycle. If the feedback has one pole pair,
this will also be the bit count per mechanical revolution. If the feedback
has 2 pole pairs, there will be 8092 counts/mechanical revolution and
so on.
Potentiometer feedback type:
Configure scale factor for analog (potentiometer) signal reading. Scale
is needed to reduce position ripple.
The potentiometer measured signal is arithmetically right shifted by
the value contained in CA[34] setting.
This means that the actual max value is:
CA[18]/2^CA[34].
CA[34] is in range [0…6]. Default value is zero.
Table 3-11: - CA - Resolver Parameters
The following parameters are required for Tachometer operation:
CA[35] The value of the Tachometer offset in counts/sec.
CA[36] The value of the Tachometer gain (from the Tachometer’s data sheet) in
Volts/kRPM.
Table 3-12: - CA - Tachometer Parameters
Attributes: Type: Parameter, Integer
Source: Program, RS-232, CANopen
Restrictions: MO=0
Default values: CA[1]=CA[2]=CA[3]=1,CA[4]=3,
CA[5]=2,
CA[6]=1, CA[13]=32768, CA[15]=4, CA[16]=1,
CA[17]=1,CA[18]=4096, CA[19]=2, CA[20]=1,
CA[21]=1, CA[22]=2, CA[24]=5, CA[25]=1,
CA[26]=20, CA[29]=1
All other CA parameters are 0 (RS),
Non-volatile
Range:
As defined in the previous tables
Unit modes: All
Activation: Immediate
Notes:
ƒ The CA parameters are usually set automatically by the Composer program. Avoid
setting the CA[N] parameters manually unless you are sure of what you are doing.
ƒ Unused indices are reserved for compatibility with other drive models.
ƒ CA[7], CA[35] and CA[36] are floated
See also: Reference chapter in the SimplIQ Software Manual:
MO , UM Chapter 9, ”Commutation”
SimplIQ Command Reference Manual Alphabetical Listing
MAN-SIMCR (Ver. 4.5)
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