mdd - VASCAT - (Version JPG) - PDF Catalogue | Technical Documentation

MOTOKE5 ElECTRICOS DE VEiOCIDAD VARIABLE

general features mdd range inverter-fed synchronous motors

CODE CT 52 EDITION 02 Date: July 2009 Page 1

1. overview

MDD Motors are multi-pole three-phase permanent-magnet synchronous motors - air-cooled (MDD-SN) or water-cooled (MDD-SW). These motors are specially designed for use in high level torque applications at low rpm's. The motors are solely driven by absolute encoder feedback vector inverters. Additionally, they are technically designed to both eliminate mechanical components (transmissions, reducers,...) and increase precision, rigidity and overall efficiency of the drive, which makes them ideal for direct drive applications. The mechanical configuration of these motors offers great flexibility: through-hollow shaft, blind shaft, solid shaft or frameless.

2. main technical features

The main technical features are provided below, according to the MDD series chosen:


		MDD
FEATURES	FACTOR	MDD-SN	MDD-SW
No. of poles		16	16
Degree of Protection	Type	IP54	IP54
Cooling		Air-cooled	Water-cooled
		IC410	IC97W
Compact frame with double shaft ends	Form	Circular	Circular
High transient overload capacity	No. of times
	Rated Torque	3	1,7
Specific windings and insulation	Insulation Class	H	H
for withstanding
high operating frequencies	Operating Type	F	F
Variable resistance temperature probes	Temperature Probe	PTC	PTC
for protection against potential overheating		KTY 84	KTY 84

3. main advantages of use

MDD series advantages are described below:


ADVANTAGES	MDD
ADVANTAGES	MDD-SN	MDD-SW
Kinematics chain simplification (direct drive)	X	X
High torque values at low rpm's	X	X
Increased drive efficiency	X	X
Greater dynamic response due to low inertia values and low electrical time constants	X	X
Operates at a wide range of speeds at constant power	X	X
Savings in set-up and maintenance time	X	X
Dramatic increase in precision and resolution	X	X
Maximum mechanical rigidity (no need to maintain the load-to-motor inertia ratio)	X	X
High power density: smaller dimensions	X	X
Lower noise levels (dB)	X	X
Availability of rated torque from zero speed, 0 rpm (with absolute encoder feedback)	X	X
Smooth speed regulation with minimum ripple	X	X
Speed unaffected by load level	X	X

mdd - VASCAT - #1

Electric motor, Three-phase motor, DC motor, AC servo-motor, AC motor