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maxon motor

18 

maxon EC motor 

EC 20 flat with integrated electronics 

Operating Instructions

September 2010 Edition / document number 903155_PDF_E - 07 / subject to change

11  Glossary

1-Q speed controller

The motor produces positive torque in the selected or 
programmed direction. The load is not actively dece-
lerated when the speed set value is reduced or the 
direction changed (direction pre-selection version). The 
speed control enters again as soon as the load has 
reduced its speed through friction to the level specified 
by the set value speed.

Max. torque [mNm] 

The peak torque the motor can deliver intermittently. It 
is restricted by the electronics overload protection.

Max. current [A]

Supply current with which the peak torque is generated 
at nominal voltage. With an active speed controller, 
the supply current is not proportional to the torque, but 
also depends on the supply voltage. As a result, this 
value only applies at nominal voltage.

IP 00

No protection against access to dangerous parts. No 
protection against water.

IP 40

Protected against access to dangerous parts with a 
wire, tool or similar >_ Ø1 mm. 
Protected against fixed foreign objects >_ Ø1 mm. 
No protection against water.

Rotation CW/CCW 

cw = clockwise
ccw = counter-clockwise
(seen on the flange side)

Summary of Contents for EC 20

Page 1: ...et value speed target through analog signal 0 10 V 2 wire operation possible Versions Enable TTL level compatible Direction pre selection cw ccw TTL level compatible Speed monitor supplies frequency s...

Page 2: ...the equipment fails if it is used incorrectly if the control unit fails if the cable breaks etc Repairs Repairs may only be carried out by authorised personnel or the manufacturer It is dangerous for...

Page 3: ...0 cw ccw 5 wire version nominal speed 6000 rpm 5 Watt 2 2 Motor data 2 Watt at 24VDC Order number IP40 with housing 350795 350796 350794 370413 Order number IP00 without housing 350776 350778 350794 3...

Page 4: ...peed may change 2 3 Motor data 5 Watt at 24VDC Order number IP40 with housing 350834 350835 350806 370416 Order number IP00 without housing 350804 350805 349731 370415 Nominal voltage VDC 24 24 24 No...

Page 5: ...416 370415 If the supply voltage is reduced the torque and or speed may change 2 4 Controller data Version 2 wire 2 wire 5 wire Nominal speed 3000 rpm 6000 rpm 6000 rpm Control variable speed speed sp...

Page 6: ...input Input 0 33 10 8 VDC Green only 5 wire operation Monitor speed n Output 6 counts per turn Version Enable grey only 5 wire operation Enable Input 2 4 28 VDC Version Direction grey only 5 wire oper...

Page 7: ...oltage 10 28 VDC Set value Speed 0 10 VDC Supply voltage 10 28 VDC 14k 0 1 W 10k 0 1 W Supply voltage 10 28 VDC Values for 24 VDC operating voltage red black white green grey red black white green gre...

Page 8: ...ating mode 2 wire operating mode can be simulated by short circuiting the terminals set value speed input and speed monitor output Speed is proportional to the supply voltage see picture 17 Supply vol...

Page 9: ...VDC re bl w gr gr red black white green grey ccw 0 0 0 8 VDC cw if closed ccw if open Picture 13 Example for 5 wire version direction cw ccw in 2 wire operating mode 3 3 2 wire version Supply voltage...

Page 10: ...at the speed set value input The set speed is controlled by the amplifier Changes to speed set value are re stricted by the maximum acceleration see section 2 4 To activate the output stage in the ena...

Page 11: ...ted against overvoltage Pin allocation Cable grey Input voltage range 0 5 0 V based on GND Input impedance 112 kW range 0 5 9 V 12 kW range 5 9 V 30 V Continuous overvoltage protection 30 V 30 V 47k 1...

Page 12: ...tage V 12k 100k grey Direction cw ccw Picture 18 Direction wiring The cw direction is activated by a voltage of more than 2 4 V Speed is dependent on the applied voltage at the speed set value input I...

Page 13: ...CC Motor speed is proportional to the supply voltage independant of torque Supply voltage can be varied within the permitted range Speed at 24V supply voltage is 3000 rpm for versions 350795 and 35077...

Page 14: ...ics operating of the specification As soon as the supply voltage falls below the restart threshold of approx 28 5 V the EC 20 flat with integrated electronics is ready for operation 6 4 Blockage prote...

Page 15: ...the connection cable must be minimised by choosing a large enough wire cross section The use of shielded cables connected to ground can improve immunity against interference in electromagnetically har...

Page 16: ...0 VDC Is the enable voltage connected to the grey and black wire and switched on Is the voltage at the grey motor wire positive compared to voltage at the black wire Enable through potential free cont...

Page 17: ...h integrated electronics September 2010 Edition document number 903155_PDF_E 07 subject to change 10 Dimensions 10 1 2 Watt Version IP 40 IP 00 Picture 21 Dimensional drawing 2 Watt Version 10 2 5 Wat...

Page 18: ...set value speed Max torque mNm The peak torque the motor can deliver intermittently It is restricted by the electronics overload protection Max current A Supply current with which the peak torque is g...

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