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RMS R325P User Manual

Manual is about: Single Axis Driver

Summary of R325P

  • Page 1

    R325p single axis driver user manual and commands guide version 1.00 rms technologies 2533 n. Carson st. #4698, carson city, nv 89706‐0147.

  • Page 2

    R325p user manual page 2 of 20 1/31/2013 version 1.0 thank you for purchasing the r325p single‐axis step & direction driver. This product is warranted to be free of manufacturing defects for one (1) year from the date of purchase. Please read before using before you start, you must have a suitable s...

  • Page 3

    R325p user manual page 3 of 20 1/31/2013 version 1.0 r325p user manual product: r325p version: 1.00 date: 1/31/2013 version history version date description of changes 1.00 01/31/2013 new user manual.

  • Page 4

    R325p user manual page 4 of 20 1/31/2013 version 1.0 table of contents 1. Features ........................................................................................... 5 2. Electrical specifications ...................................................................... 5 3. Operating specific...

  • Page 5

    R325p user manual page 5 of 20 1/31/2013 version 1.0 1. Features  single axis driver for bipolar step motors  operates from +12 to 48 vdc  phase currents from 0.3 to 3.0 amp peak note: phase current of 2.7 amp and above requires an additional heatsink, make sure the temperature of the bracket doe...

  • Page 6

    R325p user manual page 6 of 20 1/31/2013 version 1.0 3. Operating specifications maximum step frequency: 2.5 mhz operating temperature: low end – 0° c high end – dependent on case temperature, bracket temperature must not exceed 45° c automatic motor holding current reduction available from 0.3 to 2...

  • Page 7

    R325p user manual page 7 of 20 1/31/2013 version 1.0 5. Pin assignments mating connectors p1 amp 640441‐3 p3 phoenix contact 1803675 p1 – rs485 bus interface p1 configuration pin no function 1 a input (+ve) 2 ground 3 b input (‐ve) table 5.1 p1 connector – pin 1 location image 5.1 p3 – motor/control...

  • Page 8

    R325p user manual page 8 of 20 1/31/2013 version 1.0 caution: connecting motor phases (a, a bar, b, b bar) to the incorrect location while the r325p is powered will cause the board to burn. Be sure to insert motor phases into pins 6 through 9, in the order of a, a bar, b, and b bar. It is recommende...

  • Page 9

    R325p user manual page 9 of 20 1/31/2013 version 1.0 connecting the power the r325p requires a supply voltage between 12‐48 vdc. First, connect the positive end of the power supply to positive terminal (pin 12), and then connect the negative of the power supply to the ground (pin 11) on the r325p. W...

  • Page 10

    R325p user manual page 10 of 20 1/31/2013 version 1.0 using the r325p with more than 5v you can choose to supply the optos with the r325p’s internal 5v supply by jumping pins 1 to 4. But if you choose to use more than 5v, for example, a 24v supply and the step pulse train is also a 0 to 24v low‐high...

  • Page 11

    R325p user manual page 11 of 20 1/31/2013 version 1.0 hold current (percent of run current) function sw5 sw6 0% on on 33% off on 66% on off 100% off off table 6.4 step resolution function sw7 sw8 sw9 sw10 full step* off off off off 2x on off off off 4x on on off off 8x on off on off 16x on on on off...

  • Page 12

    R325p user manual page 12 of 20 1/31/2013 version 1.0 communicating with the r325p 1. Connect p1 to pc via rs485‐232 converter card or usb485 converter card. 2. Set up hyperterminal by selecting correct com port 3. Settings for hyperterminal is as follows: 57600, 8 bits, none, 1, none 4. The r325p d...

  • Page 13

    R325p user manual page 13 of 20 1/31/2013 version 1.0 8. Commands protocol syntax command format: # example: #aht1000 sets the hold timeout for driver a to 1000 to query a command use the following format query format: # example: #afr queries driver a for the current firmware revision the response w...

  • Page 14

    R325p user manual page 14 of 20 1/31/2013 version 1.0 9. Troubleshooting r325p is not functioning correctly try putting the r325p into test mode by placing a jumper on pins 3 & 4 of j1 as shown below. The motor should twitch back and forth slightly if the r325p is functioning properly. R325p not mov...

  • Page 15

    R325p user manual page 15 of 20 1/31/2013 version 1.0 10. Appendix a: recommended cable recommended cable configurations: dc supply to driver cable length, wire gauge and power conditioning devices play a major role in the performance of your rms technologies driver and motor. Note: the length of th...

  • Page 16

    R325p user manual page 16 of 20 1/31/2013 version 1.0 note: these recommendations will provide optimal protection against emi and rfi. The actual cable type, wire gauge, shield type and filtering devices used are dependent on the customer’s application and system. Driver supply cable awg table 1 amp...

  • Page 17

    R325p user manual page 17 of 20 1/31/2013 version 1.0 recommended cable configurations: driver to motor cable length, wire gauge and power conditioning devices play a major role in the performance of your driver and motor. Note: the length of the dc power supply cable between the driver and the moto...

  • Page 18

    R325p user manual page 18 of 20 1/31/2013 version 1.0 * 0.5 mh is a typical starting point for the common mode line filters. By increasing or decreasing the value of l you can set the drain current to a minimum to meet your requirements. Driver to motor cable awg table 1 amp (peak) 5 amp (peak) leng...

  • Page 19

    R325p user manual page 19 of 20 1/31/2013 version 1.0 11. Appendix b: pf value for applications requiring ultimate smoothness of motion and extreme accuracy, the r325p driver can be programmed via rs485 to change the percent fast decay rate, or, the pf value. The percent fast decay default is 2, or ...

  • Page 20

    R325p user manual page 20 of 20 1/31/2013 version 1.0  pf value 3  slow speeds  bad waveform  pf value 1  fast speeds  bad waveform.