Emergency stop: The EMG output is directly connected to the emergency stop input of the driver, and is used in conjunction with the external emergency stop switch of CN2 to achieve a safety circuit.
3. IOIF1~IOIF4 mechanical I/O interfaces (9-pin)
Each axis corresponds to a 9-pin connector for connecting limit, origin, and universal digital signals:
Pin signal name direction function description
1 I24V power supply external+24V (for sensor power supply)
2 MEL input negative direction limit (Minus End Limit)
3 ORG input origin signal (Origin)
4 PEL input positive direction limit (Plus End Limit)
5 GPOB Input/Output Universal Digital I/O (configurable)
6 RST output reset driver signal (parallel with RST of CM)
7 IGND Ground Isolation Area
8 GPOA Input/Output Universal Digital I/O (configurable)
9 IGND Ground Isolation Area
Attention: Signals such as PEL, MEL, ORG, RST, etc. are directly connected to the same named signal in the CM interface internally. Therefore, users can connect limit switches at the IOIF end or driver side signals at the CM end, but need to avoid conflicts caused by simultaneous wiring.
4. CN3 brake signal interface (8-pin)
CN3 is specifically used to connect multi axis brake signals, with each axis occupying a pair of differential signals (BRAKE+/-), totaling 4 axes:
Pin signal Pin signal
1 BRAKE1+ 5 BRAKE3+
2 BRAKE1- 6 BRAKE3-
3 BRAKE2+ 7 BRAKE4+
4 BRAKE2- 8 BRAKE4-
This interface is connected in parallel with the BRAKE ± signals of each CM, facilitating unified connection to the brake relay board.
5. CN2 main power supply and emergency stop interface (4-pin)
CN2 provides external+24V power input and emergency stop signal input:
Pin signal function
1 IGND external power supply ground
2 EMG external emergency stop signal input (low level valid)
3 IGND external power supply ground
4 I24V external+24V power input (DC 24V ± 5%)
Power supply: It needs to be connected to+24V (recommended 1A or above) to supply power to all isolated side circuits (optocouplers, sensors, etc.).
Emergency stop: The EMG pin is connected to an external emergency stop button (normally closed contact). When the button is pressed, the EMG short circuits to GND, triggering the driver to stop urgently. This signal is simultaneously routed to the EMG outputs of each CM to achieve global emergency stop.

Typical wiring guidance
1. Connection with Mitsubishi J2S servo drive
Use the specialized cable provided with ADLINK (one end connected to CM1 and the other end connected to drivers CN1A/CN1B), and note that the pin definitions of CM and drivers need to correspond one-to-one (to be confirmed according to the driver manual). If using a universal cable, self-made wiring is required to connect the CM signal to the corresponding pins of the driver (such as OUT+/- → pulse, DIR+/- → direction, EA+/- → encoder A, EB+/- → encoder B, EZ+/- → Z-phase, SVON → enable, ALM → alarm, INP → in place, RDY → ready, EMG → emergency stop, RST → reset, BRAKE → brake control).
2. Connection with Yaskawa Sigma V servo drive
Yaskawa drives typically use the CN1 interface, with slightly different signal definitions. Users need to match the pulse/direction, encoder feedback, enable and other signals of CM correctly according to the Yaskawa manual. The differential signals (OUT ±, DIR ±, EA ±, etc.) of DIN-814-GP can be directly connected to the differential input terminal of Yaskawa driver, paying attention to polarity.
3. Connection of stepper motor driver
Stepper drivers typically only require a few signals such as pulses, directions, enable signals, and alarms. SJ class interfaces can be used (but DIN-814-GP does not have SJ and requires direct use of CM interfaces). Connect the OUT+/- of CM to pulse, DIR+/- to direction, SVON to enable, ALM to alarm, I24V and IGND to power the driver optocoupler (if necessary). Note that the pulse input of stepper drivers is often differential or single ended, and should be selected according to the actual situation.
4. Wiring of limit, origin and sensor
Connect PEL, MEL, and ORG to the output terminals of the corresponding proximity switch or micro switch (usually NPN or PNP), and connect the other end of the switch to I24V or IGND, depending on the sensor type. The input of DIN-814-GP is optocoupler isolated and requires an external power supply (I24V).
If a normally closed limit is used, the signal line is at a high level during normal operation and at a low level (ground) during triggering, and the software can set polarity reversal internally.
5. Brake signal wiring
Connect the BRAKE ± of CN3 to the external brake relay coil (using a series current limiting resistor or relay module) to control the motor brake. Usually, the brake signal is automatically controlled by the motion card when the servo is enabled or emergency stop occurs.
6. Power supply and emergency stop circuit
Connect the positive pole of the external+24V power supply to CN2-4 (I24V) and the negative pole to CN2-1 (IGND) and CN2-3 (IGND).
Connect one end of the external emergency stop button (normally closed) to CN2-2 (EMG) and the other end to CN2-1 or CN2-3 (GND). During normal operation, the EMG is suspended or at a high level. When the emergency stop button is pressed, the EMG is short circuited to ground, triggering a stop.