Configure the r325 using the dip switch, Dip switch run current settings, Using the r325p with more than 5v – RMS Technologies R325P DRIVER User Manual
Page 10: Disable line has a 1k ohm internal resistor, Configure the r325p using the dip switch
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 signal, please use the following recommended resistor to limit the current to
10 mAmps. Note: no resistor will be needed on the actual opto supply line, pin 1.
Step & Direction lines have a 470 ohm internal resistor
Voltage:
5V
10V
15V
24V
Ohms needed:
0
500
1000
2000
Wattage rating:
0
¼ watt
¼ watt
¼ watt
Table 6.1
Disable line has a 1k ohm internal resistor
Voltage:
5V
10V
15V
24V
Ohms needed:
0
1000
2000
3800
Wattage rating:
0
1/8 watt
1/8 watt
¼ watt
Table 6.2
Configure the R325P using the DIP Switch
R325P DIP Switch Settings
Run Current
Function
SW1
SW2
SW3
SW4
0.3A
ON
ON
ON
ON
0.4A
OFF
ON
ON
ON
0.5A
ON
OFF
ON
ON
0.6A
OFF
OFF
ON
ON
0.8A
ON
ON
OFF
ON
1.0A
OFF
ON
OFF
ON
1.2A
ON
OFF
OFF
ON
1.4A
OFF
OFF
OFF
ON
1.6A
ON
ON
ON
OFF
1.8A
OFF
ON
ON
OFF
2.0A
ON
OFF
ON
OFF
2.2A
OFF
OFF
ON
OFF
2.4A
ON
ON
OFF
OFF
2.6A
OFF
ON
OFF
OFF
2.8A
ON
OFF
OFF
OFF
3.0A
OFF
OFF
OFF
OFF
Table 6.3
WARNING: Current of 2.7 Amp and above REQUIRES an additional heat sink; make
sure the temperature of the bracket does not exceed 45° C
R325P User Manual
Page 10 of 20
5/29/2013 Version 1.01