CNCdrive DG4S Series, Manual

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8 CONTENTS
Description of the Main connector:
The socket labeled Main is a standard RJ45 socket and contains control and fault
signal pins.
The pinout of the Main connector is listed below:
1. Step signal input
2. Direction signal input
3. Ground for Step and Direction signals (NOT for power)
4. 5V power input. (if this input is fed then the 7.pin should not be connected!)
5. Reset (input) and Stop input)
6. Error (output) and Stop input
7. DC power + (12V DC input for digital processor)
8. DC power – (ground for the 12V DC power supply)
Descriptions of Main connector signals:
Digital power connection. The drive needs a power supply to power the digital part of
the device.
This power source can be a 12Volts DC powersupply connected to pins 7. and 8. in the
drive.
Or it can be an 5Volts DC powersupply connected to pins 4. and 8. in the drive.
Only one of these powering options should be used, both of them should not be con-
nected, because connecting both could damage the device.
It also must be noted that the 5Volts connection does not have an overVoltage nor reverse
polarity protection, making a wrong connection to pin 4. of the main connector can cause
permanent damage to the device!
Step and Direction source signals are fed to the DG4S drive through built in high speed
10Mbit/sec optoisolators. The step and direction inputs interface includes an analog and
also a digital filer, these filters out short pulses and noise spikes.
Reset (and Stop ) signal is referenced to the digital power supply ground (pin8). This is a
dual purpose signal which is ‘active low’, which means the drive normally keeps the signal
high and the drive is stopped by pulling the line low (grounding the pin). After the pin is
pulled low, releasing the pin initiates a reset.
Note:
The drive is also reset by turning the digital power off and back on. Error
conditions must be cleared and an encoder must be connected and functioning
properly before the drive will start working successfully.