Supported Motor-Sensor Configurations; Single Loop Configurations; Dual Loop Configurations - Technosoft iMOTIONCUBE BX-CAN Technical Reference

2.4

Supported Motor-Sensor Configurations

2.4.1

Single loop configurations

The position and/or speed are controlled using one feedback sensor. The other available feedback sensor
input can be used for External reference Position or Velocity, Pulse and Direction, Electronic Gearing or Camming.
Sensor
Sensor type
Incr. encoder
Incr. encoder + Digital Hall
Digital halls only
Linear halls (analogue)
SSI*
BiSS-C*
Analogue Sin/Cos encoder
Tacho
Open-loop (no sensor)
Open-loop (with step loss
detection using
Incr. Encoder/SinCos)
* Available only with an additional circuit. See Figure 3.24.
2.4.2

Dual loop configurations

The motor speed control loop is closed on one feedback connected on the motor while the motor position
control loop is closed on the other available feedback which is placed on the load. There is usually a transmission
between the load and the motor.
Motor Feedback #1
type
•
Incremental encoder
(single-ended or differential)
PMSM
•
•
•
Incremental encoder
(single-ended or differential) +
BLDC
Digital halls
•
Incremental encoder
Stepper
(single-ended or differential)
2ph
•
•
Incremental encoder
DC (single-ended or differential)
Brush
•
Analogue Sin/Cos encoder
•
Analogue Tacho (only on motor)
* Available only with an additional circuit. See Figure 3.24.
Each defined motor type can have any combination of the supported feedbacks either on motor or on load.
Example:
-PMSM motor with Incremental encoder (from feedback #1) on motor and Incremental encoder (from feedback#2)
on load
-DC brush motor with Incremental encoder (from feedback #2) on motor and Sin/Cos encoder (from feedback #1)
on load.
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Sensor location
FDBK #1 (single ended or diff.)
FDBK #2 (single ended 3.3V TTL)
FDBK #1 (single ended or
diff.)
FDBK #2 (single ended
3.3V TTL)
Digital halls interface
Linear halls interface
FDBK #2 (diff.)
FDBK #2 (diff.)
FDBK #1 (diff.)
Analogue input: Feedback
-
FDBK #1 (single ended or diff.)
FDBK #2 single ended 3.3V TTL
(
Analogue Sin/Cos encoder
Linear Halls (only on motor)
Analogue Sin/Cos encoder
Motor Brushless
PMSM
Yes
Digital
halls
Yes
interface
Yes
Yes
Yes
Yes
Yes
-
-
-
)
Feedback #2
•
Incremental encoder (single-ended 3.3V TTL)
•
*SSI/BiSS C encoder
•
Incremental encoder
(single-ended 3.3V TTL) + Digital Halls
•
*SSI/BiSS C encoder (only on load)
•
Incremental encoder (single-ended 3.3V TTL)
•
*SSI/BiSS C encoder
•
Incremental encoder (single-ended 3.3V TTL)
•
*SSI/BiSS C encoder
12
Brushless DC Brush Stepper
BLDC 2 phase
- Yes
Yes -
- -
- -
- Yes
- Yes
- Yes
- Yes
- -
- -
iMOTIONCUBE Technical Reference
Stepper
3 phase
Yes -
- -
- -
- -
Yes -
Yes -
Yes -
- -
Yes Yes
Yes Yes