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Digital amplifier module SD7                                                          Digital amplifier module SD7
                                                                                            Digital amplifier module
 BLOCK DIAGRAM BASIC AMPLIFIER  BLOCK DIAGRAM ENHANCED AMPLIFIER

 X1-5
 +  DC  U  X1-15
 Supply voltage  DC  PWM  I  +  X1-5      DC                                     U    X1-15
 X1-6  Microcontroller  Solenoid A  Supply  DC                          PWM       I
 -  X1-16           voltage   X1-6               LED       Microcontroller                 Solenoid A
 A/D                      0 VDC                  green                                X1-16
 X1-7                                                                   A/D
 Stabilised
 output voltage  LED                              Ref
 green
 X1-9              Stabilised output  X1-7
 +                 voltage                             A
 Analogue input 1  X1-10  + -  A  PWM  U  X1-13  X1-9                   PWM      U  I  X1-13
 voltage  -  I               +                +                                            Solenoid B
 Solenoid B        Analogue input 1  X1-10    -
                             -                            10-Bit                      X1-14
 X1-14                                                                  A/D
 A/D
 X1-11
 +                            X1-11
 Analogue input 2  X1-12  + -  D  +           +                                            LED red
 current  -  LED red  Analogue input 2  -  X1-12  -
                                                                                           LED yellow
 LED yellow                                       Ref
 X1-1              Stabilised output  X1-31                             SPI       A   X1-32  Analogue output
 Digital input 1   voltage                                                         D
 X1-3                                                                             12-Bit
 Digital output 1             X1-25
                             +
                   Analogue input 3  X1-26    + -                                     X1-30
 X1-4                        -                                                             Analogue ground
 X1-2  Digital output 2
 Digital input 2  FEPROM                          A    SPI
 RAM                          X1-27                D
 EEPROM                      +                    16-Bit
 X1-8              Analogue input 4           +                                        X1-3  Digital output 1
 Analogue ground             -  X1-28         -
 X2  USB
 see "Pin Assignment"                                                                  X1-4
                                                                                           Digital output 2
 Option            Analogue ground  X1-8                                              X1-23
 HART                                                                                      Digital output 3
                                                                                      X1-24
 X1-21  Fieldbus (option)                                                                  Digital output 4
 (Option)  +  A  X4  • CAN / S1939
 Analogue input 3   X1-22  + -  • Profibus
 • current  -  D  see "Pin Assignment"
 • HART
                              X1-1
                   Digital input 1
                              X1-2
                   Digital input 2
 Configuration Analog inputs Basic amplifier  Configuration Analog inputs Enhanced amplifier
                   Digital input 3  X1-17
 Type designation  Analog input 1  Analog input 2  Type designation  Analog inputs
 SD7x0xDx0-Ax  Voltage   Current  Nr. 1  Nr. 2  Nr. 3  Nr. 4  Digital input 4  X1-18
 SD7x0xDx1-Ax  Voltage   Voltage*  SD735xDx4-Bx  Voltage  Current  Voltage  Current  X1-19
 SD7x0xDx2-Ax  Current  Current  SD735xDx5-Bx  Voltage  Voltage*  Voltage  Voltage  Digital input 5
 SD735xDx6-Bx  Current  Current  Current  Current  X1-20
                   Digital input 6
 SD735xDx7-Bx  Voltage  Voltage*  Current  Current
 * x = P only 0...10VDC possible  SD735xDx8-Bx  Current  Current  Voltage  Voltage  Digital input 7  X1-21
                                                               FEPROM                    X2  USB
                                                               FEPROM
                                                                RAM
                                                                RAM
                              X1-22                                                          see "Pin Assignment"
                                                               EEPROM
 Configuration Analog inputs Basic amplifier HART  Configuration Analog inputs Enhanced amplifier HART  Digital input 8  EEPROM
 Type designation  Analog inputs  Type designation  Analog inputs  Digital ground  X1-29
 Nr. 1  Nr. 2  Nr. 3  Nr. 1  Nr. 2  Nr. 3  Nr. 4                      Option
 SD7x0xDx0-BH  Voltage  Current  Current  SD735xDx4-BH  Voltage  Current  Current  Current
                                                                                              Fieldbus (Option)
 SD7x0xDx1-BH  Voltage  Voltage  Current  SD735xDx6-BH  Current  Current  Current  Current  X4  • CAN / S1939
 SD7x0xDx2-BH  Current  Current  Current  SD735xDx7-BH  Voltage  Voltage  Current  Current    • Profibus
                                                                                              see "Pin Assignment"




 Wandfluh AG   Tel.  +41 33 672 72 72   sales@wandfluh.com   Illustrations not obligatory   Data sheet no.  Wandfluh AG   Tel.  +41 33 672 72 72   sales@wandfluh.com   Illustrations not obligatory   Data sheet no.
 Postfach   Fax  +41 33 672 72 12   www.wandfluh.com   Data subject to change   1.13-101E 6/10   Postfach   Fax  +41 33 672 72 12   www.wandfluh.com   Data subject to change   1.13-101E 7/10
 CH-3714 Frutigen          Edition 23 02  CH-3714 Frutigen                                               Edition 23 02
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