background image

User manual AD CM M  
Page 7 of 20 

 

 

1.4

 

Suitable PRECISTEP Motors 

The driver of the series AD CM M_S is specifically suitable for motors with windings designed for constant 

current control. 

 

Motor Type 

Winding 

Current setting 

(switch position)

 

Voltage setting 

(recommended)

 

AM0820 V-3-18  3 

16 

AM1020 A-0,25-8  5 

12 

ADM1220(S) V2 

10 

ADM1220(S) V3 

15.5 

AM1524 A-0,25-12,5  5 

18.5 

AM1524 A-0,45-3,6  9 

10 

AM1524 V-6-35  3 

27 

AM2224(-R3) AV-4,8 

10 

14.5 

AM2224(-R3) AV-18 

27 

 

For other stepper motors, the current control mode is possible but not optimal. 

 

Motor Type 

Winding 

Current setting 

(switch position)

 

Voltage setting 

(recommended)

 

Notes 

ADM0620 

V3 

10 V 

33% torque reduction 

ADM0620 

V6 

Definitely not recommended for current mode 

AM0820 

V-5-56 

17 V 

38% torque reduction  

AM0820 

A-0,225-7 

10 V 

12% torque reduction  

AM1020 

V-3-16 

14.5 V 

17% torque reduction  

AM1020 

V-6-65 

19.5 V 

45% torque reduction 

AM1020 

V-12-250 

Definitely not recommended for current mode 

ADM1220(S) 

V6 

14.5 V 

45% torque reduction 

ADM1220(S) 

V12 

Definitely not recommended for current mode 

AM1524 

V-12-150 

Definitely not recommended for current mode 

AM2224(-R3) 

AV-0,9 

15 (max) 

10 V 

35% torque reduction 

AM2224(-R3) 

AV-12-75 

Definitely not recommended for current mode 

 

Notes 

 

The settings of the second table use a lower current than the nominal current recommended in the 

datasheet (that is why torque is reduced in most cases). It is possible to set a higher current but the 

temperature may rise very quickly causing irreversible damages to the motor. 

 

 

It is often possible to set the current to a close matching value by using the boost function. The idea is 

then to set the current to a lower value and increase it up to 135% by using the PIN7 of the COMMAND 

connector (see section 2.3.1 for more information). However, this solution is not direct and requires 

controlling externally the boost function. 

 

 

Also, when the current setting is not appropriated to the winding, please note that some motors may 

offer a reduced operational speed because of their high back-EMF. 

 

 

Generally speaking, the higher the voltage of the supply is, the more torque the motor will develop at 

high speed. 

 

 

 

Summary of Contents for PRECIstep AD CM M1S

Page 1: ...Stepper Motor DRIVER Constant Current Mode USER MANUAL AD CM M1S AD CM M2S AD CM M3S ...

Page 2: ... R4 Name Update Precistep 08 04 2008 V4900UM160311_CD R5 Update of complete user manual 16 03 2011 Product denomination key Typical Product type AD CM M1S AD Driver product category C Constant Current driver M Mode M1 Function Mode M1 Pulse direction drive external control M2 Speed control drive w o speed ramp non standard M3 Speed control drive with speed ramp S External connection type S Screw t...

Page 3: ...etting rotary switch potentiometer 13 3 SET UP OF THE AD CM M2S 14 3 1 BLOCK DIAGRAM 14 3 2 LOCATION OF COMPONENTS 14 3 3 ADJUSTMENT OF THE SPEED FMIN POTENTIOMETER 14 3 4 OPERATION OF THE AD CM M2 15 3 4 1 Jumper ADJ Adjust 15 3 4 2 Jumper VCO Voltage Controlled Oscillator 15 3 4 4 Jumper CK Clock 15 4 SET UP OF THE AD CM M3S 16 4 1 BLOCK DIAGRAM 16 4 2 LOCATION OF COMPONENTS 16 4 3 ADJUSTMENT OF...

Page 4: ...ontrol the phase current in current mode operation of PRECIstep two phases stepper motors They offer Full and half step operation Current control preset currents 16 levels of 50mA each BOOST current increase to 135 of set current level One phase ON two phase ON operation switch selection STANDBY activate or deactivate phase current to save energy INHIBIT activate or deactivate phase current to sav...

Page 5: ...set manually with a potentiometer This version is good for speed control in start stop mode pull in operation Unplugging the blue jumpers will transform the unit into the AD CM M1S Typical speed profile possible with this driver v t Please refer also to the Product Block Diagram in chapter 3 1 3 AD CM M3S Standard stock item Basic drive AD CM M1S including a plug in board with a pulse generator to...

Page 6: ...2x53 5x12 83 2x53 5x21 83 2x53 5x21 If using the internal clock generator 1 3 Protection of Inputs and Outputs The AD CM M_S versions are offering increased protection levels for the inputs and outputs as presented in the list below Driver output short circuit AD CM M_S Driver OUT versus GND protected Driver OUT versus V not protected Driver OUT versus Pin 1 2 protected Driver OUT versus Pin 1 3 p...

Page 7: ...220 S V6 1 14 5 V 45 torque reduction ADM1220 S V12 Definitely not recommended for current mode AM1524 V 12 150 Definitely not recommended for current mode AM2224 R3 AV 0 9 15 max 10 V 35 torque reduction AM2224 R3 AV 12 75 Definitely not recommended for current mode Notes The settings of the second table use a lower current than the nominal current recommended in the datasheet that is why torque ...

Page 8: ...n be mounted by using the four holes on the board However the M2 and M3 consist of two boards assembled through these holes which means that you have to fix the driver by using 4 screws M2 5 53 5 12 0 21 0 14 2 83 2 AD CM M2S AD CM M3S AD CM M1S 4x O2 7 48 0 53 5 4x M2 5 5 3 x ...

Page 9: ...COMMAND screw type terminal 12 positions MOTOR A locking connector Molex 4 pins miniature POWER SUPPLY MOTOR screw type terminal 6 positions Switch manual switch 3 pins Current selection screw type potentiometer 16 positions Status LED busy indicator For Pin out and functional explanations please see the respective section 2 3 Connection of the drives This section will introduce the functions of t...

Page 10: ...s commutated with positive current X 1 CLK input is active on positive trigger signal 2 Output sink and source pins to connect directly 3 PIN12 can be set as input or output Please refer to PIN12 description below Functional description of the Inputs Outputs on COMMAND connector PIN1 Operation mode Selection Selection can be one phase ON LH or twp phase ON LL commutation Input is not active if not...

Page 11: ... on external clock generator PIN6 STOP Command only available on M2 and M3 version Activated by a positive edge of the signal It stops the motion of the rotor by loading and enabling the internal clock signal only no effect on external clock generator PIN 7 Current boost operation The current increases by a factor of 1 35 as long as this input is active For more information see PIN7 9 truth table ...

Page 12: ...als to the driver are generated by an open collector output PLC it will be necessary to add depending on the type of output of the PLC a pull up or pull down transistor 2 3 2 Switch for operation mode To operate the driver it is also possible to work without using the COMMAND connector In this case the selection of the drive mode is done manually and directly on the board thanks to a 3 position sw...

Page 13: ...ex connector Pin Motor Phase Motor PIN 1 Phase A 1 2 Phase A 2 3 Phase B 3 4 Phase B 4 Connector Type Molex 4 poles Nr 53047 0410 Mating Connector Molex 4 poles Nr 51021 0400 with pins Molex 50058 8000 A cable with this mating connector is not supplied with the driver or the motor Please refer to the cable list of PRECIstep to find a suitable cable 2 3 5 Current setting rotary switch potentiometer...

Page 14: ...ilable Note The driver AD CM M2S do not offer a speed ramp they are able to operate the motor only at a single speed which has to be reached during the first step generally at less than 200 600 Hz depending on load 3 1 Block Diagram Host GND ON OFF Direction Phase B Phase A M Translator Clock 3 2 Location of Components FMIN ADJ A B A B CK VCO 0 1 2 345 6 7 8 9 A B C D E F F H DIR Busy OPO F H DIR ...

Page 15: ... A Jumper ADJ in Position B involve that the motor will react on the inputs RUN STOP Jumper CK will set either internal or external clock generator 3 4 1 Jumper ADJ Adjust Position A The motor rotates at the set FMIN operation speed settings upon power up Position B The motor rotates at the set FMIN operation speed settings according to the RUN and STOP inputs signals Input RUN active PIN5 motor w...

Page 16: ...ailable 4 1 Block Diagram Host GND ON OFF Direction Phase B Phase A M Translator Clock Profile 4 2 Location of Components Acc Dec FMIN FMAX STOP RUN ADJ A B A B CK VCO 0 1 2 345 6 7 8 9 A B C D E F F H DIR Busy OPO F H DIR Busy OPO GND V 1 MOTOR 4 4 3 Adjustment of the Speed Profile The Potentiometers FMIN FMAX ACC and DEC located on the plug in board are used to set the parameters of the speed pr...

Page 17: ...e min speed to its lowest value if necessary turn FMIN CCW to zero Set the ACC and DEC ramp by adjusting the corresponding potentiometers on the board see ACC and DEC Adjustment Set the max speed by adjusting the FMAX potentiometer CCW max speed CW max speed Set Jumper ADJ to position B Press RUN to see whether the motor starts If the motor does not accelerate to the speed stalling of motor shaft ...

Page 18: ...ed or pressed Note the PIN 5 on the COMMAND connector has the same function in case that the PIN 5 is activated 5 to 24VDC applied the RUN button has no function STOP Function The motor starts to decelerate when STOP is activated or pressed Note the PIN6 on the COMMAND connector has the same identical function in case that the PIN 6 is activated 5 to 24VDC applied the STOP button has no function 4...

Page 19: ...et by the on board FMIN potentiometer Position B The external Analogue Speed Reference input is used PIN 12 on COMMAND connector 4 4 4 Jumper CK Clock Jumper SET the internal clock generator is active but PIN 4 on COMMAND connector is still active too Jumper NOT SET Only the external clock signal will be taken into account clock signal must be provided on PIN 4 on COMMAND connector Start Stop ...

Page 20: ...their higher safety They require an adaptation to the AD driver series with a PULL UP resistor This configuration is necessary for the inputs outputs 1 7 of all PRECIstep drivers The value of resistor used to pull up an open collector is not critical Smaller values offer faster switching times at the price of higher current consumption Typical values range from a few thousand to a few hundred thou...

Reviews: