The perfect interplay of motors and servo converters
The decisive factor of any application has always been - and presumably will always be - the motor. What power is requiered? What torque must be achieved? What kind of motor suits best?

Using servo converters of the Novodrive ND40 series will allow you to stay flexible. All devices are equally suited to work with synchronous servo motors, high-torque motors, and linear motors.

From a finely granduated rang of power levels, you can select the servo converter suiting best your specific requirements: ND41 for applications requiring between 2 A and 7 A, ND42 for applications requiring 5 A or 10 A, and ND43 for applications requiring up to 20 A.

In this respect it is important to note that ND41 uses a two-phase or a three-phase supply voltage of 230 V_AC, while ND42 and ND43 use a three-phase supply voltage of 400 V_AC.
All ND40 devices come with onboard power pack and braking circuit. If a motor is supposed to be driven at high speed under high working load or high inertia load, external resistors may be hooked up in compliance with the rated output of the device used.

Concentrated functionality
No matter if you choose ND41, ND42 or ND43, the broad range of functions and features is the same with every device. Outstanding flexibility ist grandes by an intelligent modular software concept, by which standard applications can be modified and specialized so that customer specific requirements can be met quickly and effectively.

A modern cascade control based on ASIC's and μ-controllers provides for closed-loop control of power, speed and position. All important functions are controlled at a cycle time of 100 μs. The same cycle time is achieved when internal setpoints are generated, for example in the positioning mode.

For rotor position feedback, you can choose from a range of measuring systems the one best suited for your specific application.

All ND40 devices support:

• Resolvers
• Sine encoders (rotary or linear) with up to 4096-fold interpolation
• Heidenhain ENDAT 2.2 measuring systems with absolute position identification in realtime.

Still adhering to our "all-in-one philosophy" …
Both complicated wiring and excessive use of peripherals is something we at Novotron have always tried to avoid. That is why all our Novodrive servo converters are build according to our 'all-in-one-philosophy', which means that all functions and features are offered to you in one single device. Thus accessories can be reduced to a minimum.

When we talk about "all in one" with regard to our new Novodrive ND40 series, we specifically mean that you may use an extended range of great functions without needing additional hardware:

• Sequencing control for up to 128 stored parameter sets
• 50 permanently available operation modes, from analog setpoint setting for speed to variour positioning modes (among them, absolute positioning with setpoint ramp)
• On-the-fly change of operation modes
• Field-weakening operation for high speeds when working with high-torque motors
• 4-channel oscilloscope for increased user support during systems start-up and monitoring.

High performance by extremely compact devices:
Novotron is leading edge particulary with regard to compact design of electronic devices. Even ND43, our most powerful servo converter, is characterized by very small dimensions.

All our devices are mounted on a 3HE Eurocard of 230 mm length. A 19 inch frame can accommodate nine ND41, or five ND42, or three ND43 servo converters. For wall mounting in switch cabinets, our servo converters are available in a rugged single-axis housing, with integrated main filter as an option.

For being connected with an external control, you may choose from the following options:

• Connector block
• D-SUB with 12 × 24 V inputs, 4 × 24 V outputs, analog input, counter input, and encoder output
• Interface with CAN Novotron, Profibus, and CANopen protocol