General Breakout Board

1. Product Overview

This general breakout board is designed for motion control modules and adopts standard Euro terminal block interface. Its design purpose is to provide extremely high wiring flexibility, pulling out all control signals so that developers can freely connect most stepper motor and servo motor drivers on the market.

2. Hardware and Application

2.1 Applicable Scenarios

• Multi-brand Driver Integration: When the system needs to mix drivers from different brands.
• Customized Wiring: Need to connect motor drivers with special specifications or non-standard pins.
• Prototype Development: When wiring definitions need to be adjusted frequently during the verification phase.

2.2 Terminal Configuration Description

The breakout board is equipped with four sets of main Euro terminal blocks, partitioned according to signal characteristics:

• T1 / T3 Terminal Block (High Speed Signal Area):
  • Responsible for handling Pulse Output and Encoder Input of the motor.
  • T1 corresponds to Axis 1; T3 corresponds to Axis 2.
• T2 / T4 Terminal Block (I/O Control Area):
  • Responsible for handling I/O signals such as Servo Management (Servo On/Alarm) and Limit Sensing (Limit/Home).
  • T2 corresponds to Axis 3; T4 corresponds to Axis 4.

3. Pin Definition and Signal Description

3.1 T1/T3 Terminal Block (High Speed Signal)

This block provides the high-speed differential signals required for motor control.

• Differential Output: Transmit STEP/DIR or CW/CCW pulse commands to the driver.
• Differential Input: Receive A/B/Z quadrature encoder signals from the motor.
  • Note: If Z phase homing function (Find INDEX) is not used, ENC_Z can be left unconnected.

T1/T3 Signal Description Table

Pin#	Name	Level	Type	Dir	Description
1	Step	5V	Differential	Out	Step/Pulse/CW output signal
2	Step	5V	Differential	Out	Step/Pulse/CW output signal
3	Dir+	5V	Differential	Out	Direction/CCW output signal
4	Dir-	5V	Differential	Out	Direction/CCW output signal
5	Enc_A+	5V	Differential	In	Encoder Phase A+
6	Enc_A-	5V	Differential	In	Encoder Phase A-
7	Enc_B+	5V	Differential	In	Encoder Phase B+
8	Enc_B-	5V	Differential	In	Encoder Phase B-
9	Enc_Z+	5V	Differential	In	Encoder Phase Z+
10	Enc_Z-	5V	Differential	In	Encoder Phase Z-

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3.2 T2/T4 Terminal Block (I/O Control)

This block integrates various switch and trigger signals required for motion control.

• Open Collector Output: Servo On and Alarm Clear, suitable for controlling driver status.
• Opto-coupler Input: Forward (Positive Limit), Reverse (Negative Limit), Home (Origin), this block supports 24V voltage, convenient for interfacing with industrial sensors.
• TTL Signal (5V):
  • Break-point (BP): Position Compare Output (Trigger Out).
  • Capture (CAP): Position Capture Input (Trigger In).

Note

BP (Breakpoint) and CAP (Capture) are 5V TTL signals, strictly prohibited to connect to 24V voltage. If strictly connected to 24V signals (such as accidentally connected to the 24V loop of the Limit Switch), the axis card circuit will be damaged immediately.

T2/T4 Signal Description Table

Pin#	Name	Level	Type	Dir	Description
1	Servo on	24V	Open-collector	Out	Serve on output signal / inhibit out
2	ALM	24V	Open-collector	Out	Alarm clear output signal
3	FWD	24V	Optocoupler	In	Forward limit switch input signal
4	REV	24V	Optocoupler	In	Reverse limit switch input signal
5	HOME	24V	Optocoupler	In	Home limit switch input signal
6	24V	24V	Power	Out	Power output for limit switch
7	24V	24V	Power	Out	Power output for limit switch
8	GND		Power	Out/Ref	Power output for limit switch /Signal reference
9	GND		Power	Out/Ref	Power output for limit switch /Signal reference
10	BP	5V	Single-ended	Out	Break-point output signal
11	CAP	5V	Single-ended	In	Capture input signal
12	GND		Power	Out/Ref	Signal reference for BP / CAP