Elmo SERVO AMPLIFIER DBP SERIES - Manual (Page 4)

3
DBP - Rev 6/93
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
4.2.1 Current 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