Maxon 4-Q-DC Servo Control LSC 30/2 Operating Instructions Manual
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Maxon 4-Q-DC Servo Control LSC 30/2 Operating Instructions Manual

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maxon motor control
Operating Instructions
The LSC 30/2 (Linear Servo Controller) is a linear
4-Q-Servoamplifier used to control DC motors up to
approx. 50 W that are powered by permanent magnets.
It allows the following operating modes:
• IxR compensation
• Voltage regulator
• Digital encoder control
• DC tacho control
• Current control
The required operating mode is easily selected using a DIP
switch.
There are also several ways of choosing the set value input:
• ± 10 V to connect to layout systems, such as a positioning
controller
• auxiliary voltages ± 3.9 V are already provided by the LSC
for use with external potentiometer
• well suited for fixed speed adjustment using internal
potentiometer
Its wide input voltage, ranging from 12 - 30 VDC, makes the LSC very flexible for use with different voltage
sources. The modular-style aluminum housing offers several fastening options, notably plugging into a 19"
rack (3HE). Separable screw terminal strips and a robust controller design make the amplifier ideal for
immediate use.

Table of contents

1
Safety Instructions ...........................................................................................................................................2
2
Technical Data .................................................................................................................................................3
3
Minimum External Wiring .................................................................................................................................4
4
Start-up Procedure...........................................................................................................................................6
5
Inputs and Outputs...........................................................................................................................................8
6
Operating Status Display ...............................................................................................................................12
7
Error Handling................................................................................................................................................12
8
EMC-compliant installation ............................................................................................................................13
9
Block Diagram................................................................................................................................................13
10 Dimension Drawing........................................................................................................................................14
11 Spare Parts List .............................................................................................................................................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 250521 or
in the e-shop http://shop.maxonmotor.com.
maxon motor
4-Q-DC Servo Control LSC 30/2
Order number 250521
June 2010 Edition

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Summary of Contents for Maxon 4-Q-DC Servo Control LSC 30/2

  • Page 1: Table Of Contents

    4-Q-DC Servo Control LSC 30/2 Order number 250521 Operating Instructions June 2010 Edition The LSC 30/2 (Linear Servo Controller) is a linear 4-Q-Servoamplifier used to control DC motors up to approx. 50 W that are powered by permanent magnets.

  • Page 2: Safety Instructions

    4-Q-DC Servo Control LSC 30/2 Operating Instructions 1 Safety Instructions Skilled personnel Only skilled, experienced personnel should install and start the equipment Statutory regulations The user must ensure that the amplifier and the components belonging to it are assembled and connected according to local statutory regulations.

  • Page 3: Technical Data

    Operating Instructions 4-Q-DC Servo Control LSC 30/2 2 Technical Data Electrical data Supply voltage V .....................12 – 30 VDC Max. output voltage.........................25 V Max. output current I ......................2 A Max. power output .........................50 W It is advisable to consider mounting on a heat sinking surface if ambient temperature is high and...

  • Page 4: Minimum External Wiring

    4-Q-DC Servo Control LSC 30/2 Operating Instructions 3 Minimum External Wiring Operating mode Power supply 12...30 VDC 10 11 12 13 14 15 16 T acho unten Encoder maxon motor control June 2010 Edition / Subject to change...
  • Page 5 Operating Instructions 4-Q-DC Servo Control LSC 30/2 Set value input 10 11 12 13 14 15 16 positive set value: motor turns clockwise negative set value: motor turns counterclockwise Set value -10 ... +10V +3.9V Motor turns clockwise 50kΩ...

  • Page 6: Start-Up Procedure

    4-Q-DC Servo Control LSC 30/2 Operating Instructions 4 Start-up Procedure Power supply layout Any available power supply can be used as long as it meets the minimum requirements set out below. During set-up and adjustment phases, we recommend separating the motor mechanically from the machine to prevent damage from uncontrolled motion.
  • Page 7 Operating Instructions 4-Q-DC Servo Control LSC 30/2 Adjusting the potentiometers 4.3.1 Pre-adjustment With pre-adjustment, the potentiometers are set in a preferred position. Units in the original packing are already pre-set. Pre-adjustment of potentiometers 50 % Offset 50 %...

  • Page 8: Inputs And Outputs

    4-Q-DC Servo Control LSC 30/2 Operating Instructions 5 Inputs and Outputs Inputs 5.1.1 Set value “Set” The set value can be applied externally via an analogue voltage or internally using potentiometer P3. If the set value is applied externally using the “+Set” and “-Set” connections, DIP switch S9 must be in the “ON ”...
  • Page 9 Operating Instructions 4-Q-DC Servo Control LSC 30/2 5.1.2 “Disable” Enabling or disabling the power stage. If the “Dis IN” connection is not connected or at Gnd potential, the power stage is activated (Enable). Release “Enable” minimum input voltage...
  • Page 10 4-Q-DC Servo Control LSC 30/2 Operating Instructions 5.1.4 Encoder Channel A terminal [13] Channel B terminal [14] Encoder supply voltage +Venc +5 VDC, max. 80 mA max. encoder input frequency DIP switch S8 OFF : 100 kHz DIP switch S8 ON : 6 kHz Voltage level max.
  • Page 11 Operating Instructions 4-Q-DC Servo Control LSC 30/2 Outputs 5.2.1 Auxiliary voltage “+Vaux” and “-Vaux” Auxiliary voltage for supplying an external potentiometer (50 kΩ). +Vaux positive auxiliary voltage terminal [5] Output voltage +3.9 VDC referenced to Sig_Gnd Max. output current...

  • Page 12: Operating Status Display

    4-Q-DC Servo Control LSC 30/2 Operating Instructions 6 Operating Status Display A red and green LED shows the operating mode. No LED Reason: • No supply voltage • Fuse faulty • Wrong polarity of supply voltage Green LED •...

  • Page 13: Emc-Compliant Installation

    Operating Instructions 4-Q-DC Servo Control LSC 30/2 EMC-compliant installation Power supply (+V - Power Gnd) • No shielding normally required. • Star point-shaped wiring if several amplifiers are supplied by the same power supply. Motor cable • No shielding normally required.

  • Page 14: Dimension Drawing

    4-Q-DC Servo Control LSC 30/2 Operating Instructions 10 Dimension Drawing Dimensions in [mm] 11 Spare Parts List maxon motor order number Designation 282310 16 poles pluggable PCB connector pitch 3.5 mm maxon motor control June 2010 Edition / Subject to change...

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