DM420, 2 Phase Digital Stepper Drive; Max 36 VDC / 2.0A

16,49

In stock

SKU: DM420 Category:

Description

– Supply voltage from 12VDC to 36VDC
– Opto-isolated signal I/O
– Overvoltage, under voltage, overcorrect, phase short circuit protection
– 8 channels subdivision and automatic idle-current reduction
– 8 channels output phase current setting
– Offline command input terminal
– Motor torque is related with speed, but not related with step/revolution
– High start speed
– High hording torque under high speed

 

Pins assignments and description:

1)     Connector Pins    Configurations

Pin Function

                Details                                                          

PUL +,PUL-

Pulse signal, PUL+ is the positive end of pulses  input pin

                  PUL- is the negative end of pulse  input pin

 

DIR+,DIR-

DIR signal: DIR+ is the positive end of direction input pin

                 DIR- is the negative end of direction input pin

ENBL+

 

Enable signal:  ENBL+ is the positive end of direction input pin. This signal is used for enabling/disabling the driver. High level for enabling the driver and low level for disabling the driver.

ENBL-

ENBL- is the negative end of direction input pin. Usually left unconnected (enabled)

 

3.Function choice ( Using DIP pins to achieve this function)

 1) Micro step resolution is set by SW 5,6,7,8 of the DIP switch as shown in the following table

 

SW5

ON

OFF

ON

OFF

ON

OFF

ON

OFF

SW6

ON

ON

OFF

OFF

ON

ON

OFF

OFF

SW7

ON

ON

ON

ON

OFF

OFF

OFF

OFF

Pulse/rev

200

400

800

1600

3200

6400

12800

25600

Micro

1

2

4

8

16

32

64

128

 

2) Standstill current setting

SW4 is used for this purpose. OFF meaning that the standstill current is set to be half of the selected dynamic current and ON meaning that standstill is set to be the same as the selected dynamic current.

3) Output current setting:

The first three bits (SW 1, 2, 3)of the DIP switch are used to set the dynamic current. Select a setting

Closest to your motor’s required current 

SW1

SW2

SW3

PEAK

RMS

ON

ON

ON

0.44 A

0.31 A

OFF

ON

ON

0.62 A

0.44 A

ON

OFF

ON

0.74 A

0.52 A

OFF

OFF

ON

0.86 A

0.61 A

ON

ON

OFF

1.46 A

1.03 A

OFF

ON

OFF

1.69 A

1.20 A

ON

OFF

OFF

2.14 A

1.51 A

OFF

OFF

OFF

2.83 A

2.00 A

 

Troubles

Alarm indicator

 

Reasons

Measures

LED off turn

Wrong connection for power

Check wiring of power

Low-voltages for power

Enlarge voltage of power

Motor doesn’t run, without holding torque

Wrong connection of stepper motor

Correct its wiring

RESET signal is  effective when offline

Make RESET ineffective

Motor doesn’t run, but maintains holding torque

Without input pulse signal

Adjust PMW & signal level

Motor runs wrong direction

Wrong wires’ connection

Change connection for any of 2 wires

Wrong input direction signal

Change direction setting

Motor’s holding torque is too small

Too small relative to current setting

Correct rated current setting

Acceleration is too fast

Reduce the acceleration

Motor stalls

Rule out mechanical failure

Driver does not match with the motor

Change a suitable driver

 

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