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» Leadshine CS-D23445B closed loop stepper motor 4,5 Nm with brake for CS-D808/CS-D1008
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Leadshine NEMA34 closed loop stepper motor 4,5 Nm
Leadshine CS-D23445B closed loop stepper motor 4,5 Nm with brake for CS-D808/CS-D1008 specifications
Leadshine closed loop stepper motor 4.5 Nm
Type: ES-M23445B
These
stepper motors have incremental encoders for position feedback.
Position sensing is performed by a 1000 line optical encoder providing
4000 edge changes per revolution. As soon as a position deviation
occurs, the electronics compensate immediately: no step loss occurs.
This 2-phase closed-loop, encoder motor is designed to work with the
Leadshine CS-D508 hybrid servo controller and requires an encoder
extension cable, available in several lengths. Together with these
controllers, the drive forms a closed-loop system that combines high dynamics, high torque for its size and low heat generation. Due to the encoder-position feedback, there is no additional step loss.
This product combines the advantages of stepper motor drive and servo drive, such as.
- no step loss due to position feedback
- less heat production
- less vibration
- lower power consumption
- high dynamics
In most cases, these drives are ready for immediate use and do not require complex tuning, such as servo motors, for stable operation.
The complete drive system requires the following components:
- Closed loop motor (this item)
- Driver
- Transmitter extension cable type H-BMxM0 (optional lengths 3m, 5m, 8m, 10m, 12m)
- Accessory: Programming cable, with
the free ProTuner software, this cable allows you to connect to your
computer to tune your system settings.
Fields of application:
- Ideal for milling machines, lathes, robots, winders or general positioning.
- Compatible with CNC controllers such as Beamicon. Estlcam, Mach3, Eding, Linuxcnc and many more.
Technical data:
- Torque: 4 Nm
- Shaft diameter: 14mm
- Shaft length: 38,5 mm
- Centring diameter: 38 mm
- Total length without shaft: approx. 102 mm
- Flange size: NEMA34/ 86x86mm
- Bore spacing: 69,6 mm
- Encoder 1000 pulses/rotation
Type Benefits:
- No need for tuning as with servo motors
- Simple control with standard pulse/direction signals (PUL/DIR) and enable signal
- Compact size makes installation easy
- 2 green and red LEDs to indicate drive status
- Settings can be made using DIP switches or software
- Parameters can be transferred to PC via RS232
Security features
- No step loss and high position accuracy due to position feedback
- Error output allows reaction to error conditions
- The quiet and smooth engine runs at low revs, avoiding resonances
- High efficiency thanks to variable current control technology
- Integrated overcurrent protection, overvoltage protection, step-loss detection increase safety
Advantages over JMC integrated stepping motors
- Better electronics because there is more space for properly sized components
- Better cooling because the drive and motor are separated
- Dust-free operation is possible, the motor is encapsulated, the driver is located in the switch cabinet
- Longer-lasting technology.
Hybrid servo information
Conventional
open-loop stepping systems operate in open-loop mode, i.e. position
control without feedback. When stepper motors operate under load in
open-loop mode, a potential loss of synchronization between commanded
and actually executed steps can occur, referred to as "stall" or "step
loss". In the past, this was corrected by adding a feedback device, such
as an optical encoder, that monitors the "current" position. However,
this modification only warns, not corrects, the step loss.
When an application requires real-time position control in motion,
engineers have had to rely on servo systems and the complexity and cost
associated with them. In many applications, because conventional servo
systems do not have high torque compared to stepper motor systems,
expensive planetary gears have had to be added to achieve the desired
torque.
By implementing high-resolution encoders that provide feedback on motor
position every 25 microseconds, closed-loop stepper motors guarantee
real-time controlled position accuracy without loss of steps, as in
open-loop stepper motor systems.
Note: There are systems that call themselves "closed loop" and can
operate with encoders, but do not have field-oriented control, including
sinusoidal commutated current control. They control step position, but
cannot compensate for step angle errors during motion.
Our closed-loop systems have field-oriented control, i.e. they
compensate for step losses during motion and correct for load angle
errors within one complete step!
Unlike open-loop stepper motor systems where the current is constant,
closed-loop stepper motor systems vary the output current and are
optimized based on motion and load. As a result, closed-loop stepper
motor systems generate more torque, less motor heat, less vibration and
less noise than open-loop stepper motor systems.
Compared to brushless or brushed servo systems, the cost of closed loop
stepper motor systems is significantly lower. They also offer much
higher torque, simple setup and configuration, no overshoot, and no
oscillation in and out (hunting). In many low and medium applications,
closed loop stepper motor systems can be a better solution than servo
systems.