IRMCS2033

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10

Getting Started

For quick start with preconfigured parameters, the following motor is supported with a preconfigured motor file.

•

Maxon 118889 (80W, 11000rpm)

If any other motor is used, reconfiguration is required. Configurable parameters are required to tailor the design to

various applications (motor and load). These configurable parameters can be modified via the host register interface

(using the ServoDesigner tool) through the communication interface. In the IRMCS2033 product, a design

spreadsheet (Drive parameters translator) is provided to aid the user for ease of drive start-up. Using the spreadsheet,

the user enters high-level parameters such as motor nameplate information, maximum application speed, current limit,

and speed regulator bandwidth. This high-level user information is translated to engineering parameters (directly

used by the drive). Figure 5 gives an overview of the commissioning steps. Please refer to the IRMCK203 Application

Developer’s Guide for a detailed description of drive commissioning.

Drive Parameters Translator

Translate input parameters to drive parameters

Enter high level design parameters

(Motor nameplate, Current limits,

Max speed, overload etc..)

Engineering

parameters

IRMCS2033

ServoDesigner

Input and download drive parameters

Refine drive parameters

User

parameters

Figure 5. Overview of Drive Commissioning

Shunt Resistor and Current Rating

Two 20m Ohms current sensing shunt resistors are equipped as default resistors at factory shipment (R11 and R12

located on the top side of PCB). With these resistors, IRMCS2033 can deliver up to

±13A maximum peak current

(using IR2175) to the motor including overshoot of current regulation when using IR2175 as current feedback.

IRMCS2033 motor commissioning tool (IRMCS2033-DriveParams.xls) will calculate the appropriate resistor value

for a particular peak Ampere requirement.