background image

maxon motor 

maxon motor control 

4-Q-DC Servoamplifier ADS 50/5 

 

Order number 145391 

Operating Instructions 

July 2009 Edition 

 
 
The ADS 50/5 is a powerful servoamplifier for 
driving permanent magnet DC motors up to 
250 Watts. 
Four modes can be selected by DIP switches 
on the board: 

  Speed control using tacho signals 

  Speed control using encoder signals 

  IxR compensated speed control 

  Torque or current control 

The ADS 50/5 is protected against excess 
current,  
excess temperature and short circuit on the 
motor winding. With the FET power transis-
tors incorporated in the servoamplifier, an 
efficiency of up to 95 % is achieved. A built in 
motor choke combined with the high PWM 
frequency of 50 kHz allows the connection of 
motors with a very low inductivity. In most 
cases an external choke can be omitted. 
Thanks to the wide input power supply range of 12 - 50 VDC, the ADS 50/5 is very versatile and can be used 
with various power supplies. The aluminium housing makes installation simple, with terminal markings for easy 
connection. 
 
 
 
 
 
 
 

Table of Contents 

 
1

 

Safety Instructions ...........................................................................................................................................2

 

2

 

Performance Data............................................................................................................................................3

 

3

 

Minimum External Wiring for Different Modes of Operation ............................................................................4

 

4

 

Operating Instructions......................................................................................................................................5

 

5

 

Functions .........................................................................................................................................................7

 

6

 

Additional Possible Adjustments....................................................................................................................10

 

7

 

Operating Status Display ...............................................................................................................................12

 

8

 

Error Handling................................................................................................................................................13

 

9

 

EMC-compliant installation ............................................................................................................................13

 

10

 

Block Diagram................................................................................................................................................14

 

11

 

Dimension Drawing........................................................................................................................................14

 

 
 
 
 
 
 
The latest edition of these operating instructions may be downloaded from the internet as a PDF-file under 

www.maxonmotor.com

, category «Service & Downloads», order number 145391 or 

in the e-shop 

http://shop.maxonmotor.com

 

Summary of Contents for ADS 50/5

Page 1: ...0 kHz allows the connection of motors with a very low inductivity In most cases an external choke can be omitted Thanks to the wide input power supply range of 12 50 VDC the ADS 50 5 is very versatile...

Page 2: ...ufacturer It is dange rous for the user to open the unit or make repairs to it Danger Do ensure that during the installation of the ADS 50 5 no apparatus is connected to the electrical supply After sw...

Page 3: ...100 Speed monitor Monitor n short circuit protected 10 10 VDC RO 100 Status reading READY Open collector short circuit protected max 30 VDC IL 20 mA 2 4 Voltage outputs Aux voltage short circuit prote...

Page 4: ...maxon motor 4 Q DC Servoamplifier ADS 50 5 Operating Instructions 3 Minimum External Wiring for Different Modes of Operation 4 maxon motor control July 2009 Edition Doc No 538837 07 Subject to change...

Page 5: ...rpm mNm Sought values Supply voltage VCC Volt Solution V M M n n n U V B B N CC 2 9 0 1 0 Choose a power supply capable of supplying this calculated voltage under load The formula takes into account a...

Page 6: ...s loud the amplification is ad justed too high 4 Adjust set value to 0 V e g by short circuiting the set value Then set the motor speed to 0 rpm with the potentiometer P2 Offset In addition only in th...

Page 7: ...imum input voltage 4 0 VDC Maximum input voltage 50 VDC Input resistance 15 k Switching time typ 500 s by 5 V Disable Minimum input voltage 0 VDC Maximum input voltage 2 5 VDC Input resistance 15 k Sw...

Page 8: ...d max speed limits must be expected because of the slower switching slope The servoamplifier does not need any home impulse I and I Male header front view Pin configuration at Encoder input 1 n c Not...

Page 9: ...10 V when the maximum number of revolutions set by the nmax potentiometer has been reached The Monitor n output is short circuit protected Output voltage range 10 10 VDC Output resistance 100 Example...

Page 10: ...ompletely satisfactory using potentio meters P1 to P5 In special cases the transient response can be optimized by setting the P6 speed regulation gain potentiometer The P7 current regulator gain poten...

Page 11: ...ycle will repeat it self Pre adjustment P8 Icont 50 DIP switch S6 ON DIP switch S6 OFF cyclical current limiter active maximum current limit active 11 6 3 Maximal encoder frequency DIP switch S5 DIP s...

Page 12: ...atus d If a motor current of more than ap prox 12 5 A is detected at the current actual value the power stage will be switched off disable status e If the internal supply voltage cannot be set up as e...

Page 13: ...both sides ADS 50 5 side Terminal 3 Ground Safety Earth and or bottom of housing Motor side Motor housing or with motor housing mechanical design with low resis tive connection Use separate cable Enco...

Page 14: ...IxR P4 Imax Monitor I Motor Motor Power Gnd Vcc 12 50VDC 12V OUT 1K 12V 1K DIP1 P6 n gain P5 gain DIP2 DIP3 P2 Offset 12V 12V Monitor n P3 n max DIP4 Tacho Input Set value Set value Encoder B Encoder...

Reviews: