ADLINK DIN-814-GP Universal Adapter Board Configuration

ADLINK DIN-814-GP Universal Adapter Board Configuration Detailed Explanation

In industrial automation motion control systems, reliably connecting high-performance motion control cards with different brands of servo drives or stepper motor drives often faces challenges such as large differences in interface definitions, cumbersome wiring, and easy errors. The DIN-814-GP universal interface adapter board launched by ADLINK (Linghua Technology) is designed specifically for PCI-8134/8164/8154/8158 and other series of motion control cards, providing unified standardized signal routing, compatible with pulse command interfaces of mainstream servo drives such as Mitsubishi, Yaskawa, Panasonic, and Delta, and supporting universal stepper drives, greatly simplifying system integration work. This article will provide you with a complete DIN-814-GP application guide from the perspectives of hardware architecture, interface definition, typical wiring, safety emergency stop, and troubleshooting.

Product positioning and hardware overview

DIN-814-GP is a passive interface adapter board (passive backplane), whose core function is to convert the 100 pin SCSI main interface (CN1) of the motion control card into an industrial terminal for easy on-site wiring, while providing independent power and emergency stop interfaces. It supports up to 4 motion axes, each of which is connected to a servo drive or stepper drive through a 26 pin CM # connector (CM1~CM4), and is equipped with independent 9-pin IOIF # connectors (IOIF1~IOIF4) for limit, origin, and universal I/O signals. In addition, the board also provides an 8-pin CN3 connector for brake signals, and a CN2 connector for external 24V power supply and emergency stop input.

Key compatibility statement: DIN-814-GP is only applicable to ADLINK PCI-8134, PCI-8164, PCI-8154, PCI-8158 and other series of motion control cards. Do not mix with other brands or models of motion control cards, otherwise it may cause signal mismatch or hardware damage.

Supported drive types (connected via dedicated or universal cables):

Mitsubishi: J2S series, J3A series

Yaskawa: Sigma II, Sigma III, Sigma V series

Panasonic: MINAS A4 series

Delta: A2 Series

Other: Any servo or stepper driver that supports pulse+directional input (differential signal) (requires the use of a universal cable with one end open)

All signals on the board undergo isolation processing (optocoupler isolation) to ensure electrical isolation between the control card side and the drive side, thereby improving anti-interference capability. The power supply is provided by external+24V through CN2, while also supplying power to the isolation side.

Interface Definition and Signal Explanation

1. CN1 main interface (100 pin SCSI)

This is the standard interface for connecting the motion control card, which is connected to the CN1 (or CN2) of the motion card through a flat cable. DIN-814-GP routes all signals of CN1 to various CM, IOIF, and CN3 connectors. Users do not need to pay attention to the specific pin definitions of CN1, they only need to connect the sports card correctly with DIN-814-GP.

2. CM1~CM4 servo/stepper drive interface (26 pins)

Each axis corresponds to a 26 pin CM connector, which integrates all key signals such as pulse commands, encoder feedback, enable, alarm, reset, brake, etc. The specific pin definitions are as follows (taking the axis as an example, representing axis numbers 1-4):

Pin signal name direction function description

1 SVON output servo enable signal (Servo On), high level valid

2 INP input positioning completion signal (In Position)

3 ERC output deviation counter clear (Error Counter Clear)

4 RDY input servo ready signal (Ready)

5 OUT - Output pulse signal negative terminal (differential)

6 OUT+output pulse signal positive terminal (differential)

7 EA - Input encoder A negative terminal

8 EA+input encoder A-phase positive terminal

9 BRAKE+output brake signal positive terminal (used to control motor holding brake)

10 RST output reset driver signal (Reset)

11 ALM input driver alarm signal (Alarm)

12 I24V power supply external+24V power supply (isolated side power supply)

13 IGND Ground Isolation Area

14 BRAKE - Negative end of brake signal output (differential/twisted pair)

15 IGND Ground Isolation Area

16 EB Input Encoder B Negative Terminal

17 EB+input encoder B-phase positive terminal

18 IGND Ground Isolation Area

19 EMG output emergency stop signal (to driver)

20 IGND Ground Isolation Area

21 IGND Ground Isolation Area

22 IGND Ground Isolation Area

23 DIR - Negative terminal of output direction signal (differential)

24 DIR+output direction signal positive terminal (differential)

25 EZ - Input encoder Z-negative terminal

26 EZ+input encoder Z-phase positive terminal

Signal points:

Differential pulse/direction: OUT ± and DIR ± are RS-422 differential pairs, and it is recommended to use twisted pair shielded wires with a transmission distance of up to 10 meters.

Encoder feedback: EA ±, EB ±, EZ ± are all differential inputs and need to be correctly paired with the driver encoder output.

Brake signal: BRAKE ± is usually used to control the motor brake relay, with a differential signal output that can drive optocouplers or relays.

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.

Principles of Circuit Interface and Signal Compatibility

The manual provides the internal circuit structure of several types of signals to facilitate users' understanding of load capacity and wiring requirements:

Limit/origin input (PEL, MEL, ORG): using optocoupler isolation, the input terminal needs to be connected to an external power supply (I24V), and the signal is low level valid (i.e. triggered when the input pin is short circuited to IGND). If a PNP sensor is used, it needs to be converted through an intermediate relay or a specialized level conversion circuit.

Servo enable (SVON) and universal output (DO): The output is open collector (OC), and an external pull-up resistor needs to be connected to I24V (the board already has a pull-up resistor, but the driving capability needs to be confirmed). Output low level is valid.

Differential pulse/direction (OUT ±, DIR ±): RS-422 differential drive, compliant with EIA standards, can be directly connected to the differential receiving end of the servo drive. If the driver is a single ended input, differential to single ended circuits can be used or only OUT+and IGND can be used (but this may reduce anti-interference performance).

Encoder feedback input (EA ±, EB ±, EZ ±): Differential receiver that receives differential encoder signals from the driver. The board has integrated terminal resistors (usually 120 Ω) internally and does not require external connections.

Common problems and troubleshooting

Problem 1: After the servo is enabled, the motor does not rotate and there is no alarm

Check if the OUT ± and DIR ± of the CM interface are wired correctly and if the motion card has issued a pulse command.

Check if the SVON signal is at a high level (usually requires software enablement). Measure the SVON pin voltage of CM with a multimeter, which should be close to+24V (the OC output high level needs to be pulled up).

Check if the driver parameters are set to 'external pulse command' and if the pulse type is' pulse+direction '.

Check if the CN2 power supply is properly connected (the voltage between I24V and IGND should be 24V).

Problem 2: Invalid limit or origin signal

Check whether the PEL/MEL/ORG of the IOIF terminal is correctly connected to the sensor and whether the sensor is powered (I24V).

Check: The sensor type (NPN/PNP) matches the input polarity of the board. DIN-814-GP input is low level valid (triggered by IGND), if using PNP sensor (output high level), additional conversion or change of software polarity setting is required.

Check if the software limit of the motion control card is turned off (to prevent software from preferentially blocking hardware limits).

Problem 3: Emergency stop cannot be triggered

Check if the emergency stop button between CN2-2 (EMG) and CN2-1/3 (GND) is properly closed (short circuited when pressed).

Check whether the emergency stop signal has been correctly transmitted to the driver end (the EMG pin of CM is directly connected to the EMG of CN2, but it needs to be confirmed that the EMG input on the driver side is wired correctly).

Check if the drive parameters have been set to external emergency stop.

Problem 4: Encoder feedback value jumps or is incorrect

Check if the encoder cable is a twisted pair shielded wire and if the shielding layer is grounded at the driver end.

Check whether EA ± and EB ± are correctly paired with the driver output (A and A, B and B), as reversed polarity can cause the count value to reverse.

Check if the terminal resistance matches (the board is already built-in, but the driver may also be built-in. If the parallel resistance decreases, disconnect one end).

Problem 5: Incorrect use of DIN-814-GP for non compatible sports cards

Consequence: The signal level and definition are completely mismatched, which may result in damage to the control card or driver. Be sure to verify the model of the sports card, only for use with PCI-8134/8164/8154/8158.

Maintenance and safety recommendations

Regularly check the tightness of wiring terminals, especially power cords and emergency stop circuits.

Do not plug or unplug cables while they are live to prevent static electricity or surges.

Keep the board clean to avoid short circuits caused by metal debris.

The emergency stop circuit must adopt a dual channel redundant design (such as safety relays), and this board only provides a single channel, requiring external enhancement.

If it is needed for applications with higher safety levels, it is recommended to add external safety relays and monitoring circuits.