Elmo DBP SERIES manual Table Of Contents

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			TABLE OF CONTENTS
1.Description				7
2.	Type Designation			8
3.	Technical Specification			9
	3.1	Digital I/O specification		10
	3.2	Analog input specification		13
	3.3	Sensors specification		14
		3.3.1	Encoder	14
		3.3.2	Resolver	14
	3.4	Communication		16
		3.4.1	RS232 Configuration	16
		3.4.2	RS485 Configuration	16
	3.5	Battery backup		16
	3.6	Performance		16
4.	System Operation			18
	4.1	RS485 and Checksum Protocol		18
	4.2	Current Control		18

4.2.1Current feedback, Current feedback multiplier (CFM) and

	Current loop		19
4.3	Digital current limits		20
	4.3.1 Time dependent peak current limit		20
4.4	Digital position and speed control		21
4.5	Operation of the shunt regulator		25
4.6	Commutation signals format		26
4.7	Protective functions		27
	4.7.1	Short circuit protection	27
	4.7.2	Under/over voltage protection	27
	4.7.3	Temperature protection	27
	4.7.4 Internal power supply failure		27
	4.7.5	Loss of commutation feedback	27
	4.7.6	Low back-up Battery voltage	27
5. Terminal Description			33
5.1	Terminals for Horizontal and Rack mounting versions		33
5.2	Mother Boards terminals (MBA-DBP/3U and MBA-DBP/6U)		43
5.3	Terminals for DBP mounted in ENCD		54
5.4	Communication Port Connector		64

DBP - Rev 6/93