C32 (Rev. 5) User Manual
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User’s Manual Page 9
Operation Mode 4 (Viper, Teco and Delta)
When the system starts, the C32 enable pins go to a low state (0V). When SCHP and
E-Stop function are checked and validated and there is no fault signal coming from any
driver, the system sends a high (5V) to the driver Fault output pin, enabling the drivers.
After that the system monitors the driver’s Fault Output pin. If an error is generated in
any driver (0V in driver Fault Output pin) or an external error occurs, the system stops,
resets the CNC software and sends a LOW (0V) to the drivers to ensure they remain
disabled.
6.0 LED INDICATOR
The standby LED lights to indicate that the system is ready but disabled. When Status
LED, (Green LED) lights, it indicates that the system is enabled.
There are 4 possible error sources: a driver fault, E-STOP error, SCHP error or VFD
alarm. An LED will light close to the source of the fault.
7.0 VARIABLE SPEED CONTROL
Variable Speed Control allows controlling the spindle with PWM and direction signals,
as if it was an axis motor. It converts the PWM signal into an analog (0-10VDC) signal.
A Variable Frequency Drive or Inverter works by modifying the frequency for AC motors.
You can control most of these devices with an external analog signal (0-10VDC). That
is, if there is 5VDC control signal, the motor will run at 50% of full speed, if there is
10VDC, the motor will run at 100% of full speed. If there is no voltage, then the motor
will stop.
This function can also be used on many DC motor controllers by replacing the
potentiometer that controls the speed.
WARNING: You will require a voltmeter to fine tune your system.
Before connecting anything, please be sure to read your VFD’s manual and make sure
you understand all the safety issues.
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