Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: McLennan Servo Supplies | Subject: i-Stepmotor
Edited by the Engineeringtalk Editorial
Team on 23 July 2007
Stepmotor offers smooth microstepping
Mclennan Servo Supplies' i-Stepmotor offers smooth microstepping speed performance with zero position loss.
Mclennan Servo Supplies has introduced a new integrated "closed-loop" stepper motor and drive from Tamagawa The low cost i-Stepmotor combines a choice of NEMA 11, 17 or 23 size stepper motors fitted with a 200-line encoder plus a dedicated stepper drive requiring a simple pulse and direction input
This article was originally published on Engineeringtalk on 17 Jun 2008 at 8.00am (UK)
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The packaged BLuAC5 range includes a PWM drive stage with a 5A continuous rating (15A peak) and direct-online 90-265V AC input.
The complete system offers smooth microstepping speed performance with zero position loss and as the encoder feedback system does not rely upon conventional servo technology, there is no need to set gain adjustment and no tendency for the motor to hunt at standstill.
The i-Stepmotor system is aimed at both new and retrofitted positioning applications requiring the simplicity of conventional stepper motor pulse train control but where motor stalling and its subsequent position loss results in excessive manufacturing cost, unwarranted production downtime or is otherwise deemed intolerable.
The chassis mounted microstepping drive requires a 24V DC supply and is fitted with connectors for direct connection to matching motor and encoder cables or for connection to optional cable extensions in convenient lengths up to 10m.
Further reading
Intelligent stepper drives promise smooth moves
Microstepping drives are available in three competitively priced versions offering a wide choice of control options.
Steppers solve wiring conundrum
NEMA 23 and 34 frame hybrid stepper motors come complete with a terminal block and a choice of cable gland or metal ring connectors.
The drive has eight dip-switch selectable resolutions from 200 steps/revolution to 25600 steps/revolution.
A second dip-switch is used to set the maximum and standby motor current ratings ranging from 0.1 to 3.0A.
The drive also includes a comprehensive array of outputs for move completion and alarms such as over-current and over-voltage conditions, inputs for drive enable, standby current reduction and alarm reset as well as repeated encoder outputs for connection to counters or other equipment.
All motors have a smooth speed capability of up to 4000rev/min with maximum holding torque from 0.12nm to 1.05nm.
The size 11 and 17 motor/encoders are available in a single length and the 23 frame motor/encoder is available in a choice of two stack lengths.
Motor/encoder assemblies include 300mm long cables with connectors fitted.
The i-Stepmotor is easy to set up and integrate into precision positioning applications as a stand-alone motion solution with the customer providing pulse and direction or CW/CCW outputs from his own controller.
Alternatively, using its own design and manufacturing capability, Mclennan is able to provide complete mechatronic solutions based around the motor and drive system with a wide selection of multi-axis motion controls and custom-designed mechanics including spur or planetary gearboxes and other power train components.
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