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User's Manual

Step Motor Driver

3540 M

7/14/98

Содержание 3540 M

Страница 1: ...User s Manual Step Motor Driver 3540 M 7 14 98 ...

Страница 2: ...t Microstepping CE Mark Dual bipolar MOSFET H bridge pulse width modulated three state switching at 20kHz 12 42 VDC input 0 4 3 5 amps phase output current switch selectable in 0 1 A increments 122 watts maximum output power Automatic idle current reduction switch selectable reduces current to 50 of setting after one second Step direction and enable optically isolated 5V logic 5mA signal sink requ...

Страница 3: ...the section entitled Choosing a Power Supply for help in choosing the right power supply 5 volts DC 15mA to activate the optoisolation circuits if you don t use 5 volt logic see page 6 This is provided by most indexers and PLCs a source of step pulses capable of sinking at least 5 mA if your application calls for bidirectional rotation you ll also need a direction signal capable of sinking 5 mA a ...

Страница 4: ...l labeled VDC Connect power supply Ð to the drive terminal labeled VDC Ð Use no smaller than 20 gauge wire Be careful not to reverse the wires Reverse connection will destroy your driver void your warranty and generally wreck your day Connecting the Motor Warning When connecting the motor to the driver be sure that the motor power supply is off Secure any unused motor leads so that they can t shor...

Страница 5: ...e the power supply voltage exceeds the motor voltage the less current you ll need from the power supply We recommend the following selection procedure 1 If you plan to use only a few drives get a power supply with at least twice the rated phase current of the motor 2 If you are designing for mass production and must minimize cost get one power supply with more than twice the rated current of the m...

Страница 6: ...ices are directly compatible with this drive Logic low or 0 for a given input occurs when that input is pulled to less than 0 8 volts DC In this state the LED is conducting current Logic high or 1 occurs when the input is greater than 4 volts or open STEP tells the driver when to move the motor one step The drive steps on the falling edge of the pulse The minimum pulse width is 0 5 microseconds DI...

Страница 7: ...01 inches step Setting the step resolution is easy Look at the dip switch on the 3540 M Next to switches 2 and 3 there are labels on the printed circuit board Each switch has two markings on each end Switch 2 is marked 1 5 1 10 at one end and 1 5 1 64 at the other Switch 3 is labeled 1 2 1 5 and 1 10 1 64 To set the drive for a resolution push both switches toward the proper label For example if y...

Страница 8: ...ting Table 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 5 6 7 8 9 Setting Phase Current Before you turn on the power supply the first t...

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