CNC4PC C32 - Operation Mode Selection Jumper

C32 (Rev. 5) User Manual
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User’s Manual Page 10
7.1 Operation Mode Selection Jumper
This jumper allows selecting the way how the relays are activated when a PWM signal
and REV signal are present in the pins 1_14 and 1_16.
In US mode one relay is used to start on CW and the other one to start on CCW. In
international mode one relay is used for on/off, and the other one to indicate the CW or
CCW rotation of the spindle motor. This board uses the step and direction setting for
the spindle motor under motor output in Mach3 to generate the required action on the
relays. For both cases the presence of PWM will indicate spindle start.
See the tables below.
US MODE (INT)
PIN
RELAYS
1_14
1_16
REL 1
REL 2
OPERATION
PWM
1
OFF
ON
Spindle ON CCW
PWM
0
ON
OFF
Spindle ON CW
0
1
OFF
OFF
Spindle Off
0
0
OFF
OFF
Spindle Off
INTERNATIONAL MODE
(INT)
INPUTS
RELAYS
1_14
1_16
REL 1
REL 2
OPERATION
PWM
1
ON
ON
Spindle ON CCW
PWM
0
ON
OFF
Spindle ON CW
0
1
OFF
OFF
Spindle Off
0
0
OFF
OFF
Spindle Off
Relay 1 and 2 (Pins 16 “Port 1”)
They can be used to control the VFD. The relay specifications are shown in the table
below.
ELECTROMECHANICAL RELAYS
SPECIFICATIONS
Maximum Current (AC)
7A@240VAC;
10A@125VAC
Maximum Current (DC)
15A@24VDC;
10A@28VDC