C25XP – MULTIFUNCTION CNC BOARD Rev.5

JULY 2025

1.0 FEATURES

Can ship with the Ethernet Smooth Stepper Motion Controller installed when purchased as a bundle.
Built-in PWM-Based Speed Control and Two Built-in Electromechanical Relays with NO and NC positions for spindle control.
The system monitors:
- E-Stop.
- Safety Charge Pump.
- Driver Error.
Electromechanical Relay with NO and NC positions for general purpose (Port_2 16 or 17, jumper-selectable).
Microcontroller-based SCHP (Safety Charge Pump).
opt isolated inputs working at 5-24VDC.
Uses a single +24VDC to power the system. It generates the isolated voltage for the spindle control circuit and +5VDC for circuits using TTL logic.
Status LEDs on all input and Output connections.
DIN Rail mountable.
Open-Collector Outputs: pins 1, 14, 16, and 17 on Port 2.
Screw-On connections for all terminals.
Status LEDs for enable.
The ENABLE Output of the C25XP is tied to LPT3. So that relay or breakout boards connected to LPT3 will be enabled/disabled with the C25XP.
Available installers and configuration files that configure all the functions of the board.
Driver Fault Detection pin. *NEW
4 pins can be used for High-Speed input. *NEW

2.0 I/O SPECIFICATIONS

PINS	PORT1	PORT2	PORT3	TOTAL
INPUT	5	13	5 / 13	31
OUTPUT	12	4	12 / 4	20
TOTAL	17	17	17	51

OPTOISOLATED DIGITAL INPUT TTL SPECIFICATIONS

On-state voltage range	5 to 24VDC
Maximum off-state voltage	0.8V
Typical signal delay	2.8uS

DIGITAL OUTPUT TTL SPECIFICATIONS

Maximum output voltage	5VDC
Maximum output current	24mA
Maximum off-state voltage	0.44 V
Maximum supported frequency	400KHz
Typical signal delay	10µS
Time of transition to high impedance state	12µS

HIGH SPEED ENCODER INPUT

On-state voltage	5 VDC
Maximum off-state voltage	0.8V
Typical signal delay	2.8uS
Rise / Fall Time (Typ)	50ns - 12ns

OPEN COLLECTOR OUTPUT SPECIFICATIONS

Maximum output voltage	60VDC
Maximum output current	2A
Typical signal delay	0.5 µS

Relay 1 and 2

They can be used to control the VFD. The relay specifications are shown in this table.

ELECTROMECHANICAL RELAYS SPECIFICATIONS

Maximum Current (AC)	2A@125VAC
Maximum Current (DC)	2A@60VDC

3.0 BOARD DESCRIPTION

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Set the jumper on ESS LPT3 to apply +5VDC to pin 26.

4.0 POWER TERMINALS AND CONFIGURATION

4.1 Power terminal

The board can typically be powered with regulated +24vdc, but it can also work with anything between +10VDC and +30VDC. The board itself will draw about 1 Amp, but we recommend using a 2A and up so it can power external devices.

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WARNING

Overvoltage or reverse-polarity power applied to these terminals can cause damage to the board, and/or the power source.

4.2 Source Output 5VDC

A regulated +5V DC supply of up to 2.5A can be used to power +5V DC external devices.

4.3 Source Output 24VDC

The same voltage that is used to power the board can be used to power external devices.

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SOURCE's +24 VDC is limited to 2.5 A.

5.0 PORT_3 ESS

Pin	Function
P_1	OUTPUT
P_2	IN/OUT
P_3	IN/OUT
P_4	IN/OUT
P_5	IN/OUT
P_6	IN/OUT
P_7	IN/OUT
P_8	IN/OUT
P_9	IN/OUT
P_10	INPUT
P_11	INPUT
P_12	INPUT
P_13	INPUT
P_14	OUTPUT
P_15	INPUT
P_16	OUTPUT
P_17	OUTPUT
P_18/25	GND
P_26	5V

The ENABLE Output of the C25XP is now tied to LPT3. So that relay or breakout boards connected to LPT3 will be enabled/disabled with the C25XP. Pin 26 also provides +5VDC to an external Relay or breakout board, making it easy and clean to integrate with other products.

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Set the jumper on ESS LPT3 to apply +5VDC to pin 26.

6.0 E-STOP TERMINAL (24V)

Connect an E-STOP push button as is shown in the images below.

Pin 10, port 1 is used for E-Stop. Since this board controls the enable line, which is responsible for notifying the controller of the e-stop condition, the user does not have direct access to the pin itself, but only to the e-stop terminal on the board. The E-Stop terminal is tied to the enable line and will trigger the E-Stop. A fault or E-Stop triggers a low for 5 seconds to notify the controller of the fault condition, then resets to high again

7.0 DRIVER ERROR

In order to start the driver monitoring function, it is necessary to connect the driver Alarm to the ERR terminal.

7.1 WIRING DRIVER ERROR

8.0 HIGH SPEED INPUTS

PORT_2 PIN 2, 3, 4, AND 5. These terminals support signals 5VDC.

9.0 CONFIGURATION JUMPERS

9.1 Selecting the SCHP operation mode

The Safety Charge Pump uses pin 17 on port 2. When the SCHP is enabled on the board, then the output of the terminals will be active while the Safety Charge Pump signal is present and inactive while the SCHP is not present.

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Note: Also, that Relay3 on can also be tied to pin 17 or 16 on port 2. If the jumper is set to be tied to pin 17, then the relay will activate while the system is active. This can be ideal to control power to DC servos or to handle servo brakes. Or enable/disable any other feature that is associated to the system been active.

9.2 Configuration jumper mode US or INT

Set jumpers 1 and 2 in the corresponding positions for the desired configuration mode.

For the Variable speed control, go to
instructions_variable_speed_control.pdf
To configure the control software, go to
Configuration_of_Control_Sofware.pdf
To replace the Potentiometer, go to
Replacing_a_Potentiometer.pdf
ESS MOTHER BOARD
https://www.cnc4pc.com/ethernet-smooth-stepper-board.html

9.3 Configuration jumper pin 16 or 17

10.0 GENERAL PURPOSE OUTPUT TERMINALS

Open Collector Outputs Sample Wiring

11.0 LEDs

12.0 WIRING SAMPLE INPUT PORT_1 AND PORT_2

13.0 AXIS WIRING SAMPLE

14.0 WIRING SAMPLE VFD

15.0 WIRING SAMPLE ENCODER

16.0 WIRING SAMPLE DRIVE FAULT DETECTION

17.0 DIMENSIONS

All dimensions are in Millimeters.

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DISCLAIMER

Use caution. CNC machines can be dangerous. Neither IGNITE, LLC nor Arturo Duncan is liable for any accidents resulting from the improper use of these devices. This product is not a fail-safe device, and it should not be used in life support systems or in other devices where its failure or possible erratic operation could cause property damage, bodily injury, or loss of life.