ADLINK DIN-814P-A4 Panasonic servo adapter board configuration

ADLINK DIN-814P-A4 Panasonic servo adapter board configuration

In the field of industrial automation motion control, efficiently integrating high-performance motion control cards with Panasonic series AC servo drives is a key link in system integration. The DIN-814P-A4 launched by ADLINK is a 4-axis interface adapter board designed specifically for Panasonic's MINAS A4/A5 series servo drives. It is also compatible with stepper motor drivers and provides standardized signal routing solutions for motion control cards such as PCI-8134, PCI-8164, PXI-8164, and MPC-8164. This article will provide you with a complete technical guide from the dimensions of hardware architecture, interface definition, jumper configuration, typical applications, and troubleshooting.

Product positioning and hardware overview

DIN-814P-A4 is a passive adapter board (passive backplane), whose core function is to convert the 100 pin SCSI main interface (CN1/CN2) of the motion control card into industrial terminals for easy on-site wiring. It supports up to 4 motion axes, each axis providing two interface options:

CNIF # (# represents axis numbers 1-4): A 50 pin dedicated interface that is compatible with Panasonic MINAS A4/A5 series servo drives (such as MADHT, MBDHT, etc.), including complete instructions, feedback, control, and status signals.

SJ #: A 10 pin simple interface used to connect stepper motor drivers or other drivers that support pulse+direction input, including pulse, direction, enable, alarm, and+5V power output.

Important warning: CNIF # and SJ # on the same axis are directly short circuited (signal parallel) inside the PCB. It is strictly prohibited to use two interfaces at the same time, otherwise it may cause signal conflicts and hardware damage.

In addition, each axis is equipped with an IOIF # (9-pin mechanical I/O interface) for connecting limit switches (PEL/MEL), origin signal ORG, deceleration signal (PSD/MSD), and reset RES. Simultaneously provide BH # auxiliary interface (6-pin) for expanding Panasonic's defined key signals (such as brake control, Z-phase output, speed/torque monitoring, etc.). The board is powered by an external+24VDC power supply (CN1) to provide energy to all isolated side circuits.

Pulse speed selection jumper (JP1~JP4): Each axis corresponds to a jumper used to match the upper limit of the pulse input frequency of Panasonic servo drives:

1-3 and 2-4 short circuit: Choose 500kpps (500kHz) mode, suitable for lower pulse frequency applications.

Short circuiting 3-5 and 4-6: Select 2Mpps (2MHz) mode, suitable for high-speed and high-precision positioning requirements.

Be sure to set the correct settings based on the driver parameters and the maximum output frequency of the motion card, otherwise it may result in pulse loss or inability to respond.

Interface Definition and Signal Explanation

1. CNIF # Panasonic servo interface (50 pin)

This is the core interface of DIN-814P-A4, used to connect Panasonic MINAS A4/A5 series servo drives. Analyze key signals by functional grouping as follows:

Pulse/direction command (differential, 500k/2M optional)

Explanation of Pin Signal Direction

3 OUT-500K output 500k mode pulse negative terminal

4 OUT+500K output 500k mode pulse positive terminal

5 DIR-500K output 500k mode direction negative terminal

6 DIR+500K output 500k mode direction positive terminal

44 OUT-2M output 2M mode pulse negative terminal

45 OUT+2M output 2M mode pulse positive terminal

46 DIR-2M output 2M mode direction negative terminal

47 DIR+2M output 2M mode direction positive terminal

Important: According to the JP jumper selection, the actual effective pulse/direction pin groups are different. The 500k mode uses pins 3-6, while the 2M mode uses pins 44-47. The two modes cannot be used simultaneously.

Operation pulse signal (single ended, used for special mode)

Explanation of Pin Signal Direction

1 OPC1 input/output operation pulse signal negative terminal (open collector)

2 OPC2 input/output operation pulse signal positive terminal (open collector)

These two pins are usually used for the pulse input mode built into Panasonic drivers (such as long line drive or open collector), but they may not be used in differential mode.

Encoder feedback (differential input)

Explanation of Pin Signal Direction

21 EA+input encoder A-phase positive terminal

22 EA - Input encoder A negative terminal

48 EB+input encoder B-phase positive terminal

49 EB Input Encoder B Negative Terminal

23 EZ+input encoder Z-phase positive terminal

24 EZ - Input encoder Z-phase negative terminal

Control and status signals

Explanation of Pin Signal Direction

29 SVON input servo enable (Servo On, from motion card)

30 ERC input deviation counter cleared (from motion card)

31 RES input reset signal (from motion card)

32 C-Mode input control mode selection (switching position/speed/torque)

28 DIV input electronic gear selection (switching frequency division ratio)

27 TL-SEL input torque limit selection

26 VS-SEL input speed selection

10 BRK-OFF - output electromagnetic brake negative terminal (control holding brake)

11 BRK-OFF+output electromagnetic brake positive terminal

12 ZSP outputs zero speed signal (valid at zero speed)

14 SPR output speed command monitoring (analog voltage)

16 CCWTL input CCW direction torque limit (external simulation)

18 CWTL input CW direction torque limit (external simulation)

19 CZ output Z-phase collector electrode open circuit output (origin pulse)

35 RDY output servo ready signal

37 ALM output servo alarm signal

39 INP output positioning completion signal

40 TLCO output torque limit command output (monitoring)

42 IMO output torque limit monitoring (analog voltage)

43 SPO output speed monitoring (analog voltage)

7 I24V power supply+24V input (for driving side power supply)

8, 9, 13, 15, 17, 25, 33, 34, 36, 38, 41, 50 IGND isolated ground

2. BH # auxiliary interface (6-pin)

Provide brake, Z-phase, and monitoring signals for users to quickly connect without using the main cable:

Explanation of Pin Signal Direction

1 BRK-OFF+output brake positive terminal

2 BRK-OFF - Output brake negative terminal

3 CZ output Z-phase output (open collector)

4 IMO output torque limit monitoring

5 SPO output speed monitoring

6 IGND Ground Isolation Area

There are LED indicator lights next to BH, displaying the status of PEL, MEL, and ORG for easy on-site debugging.

3. IOIF # Mechanical I/O Interface (9-pin)

9-pin connectors corresponding to each axis, used to connect limit, origin, deceleration, and reset signals:

Explanation of Pin Signal Direction

1+24V power isolation+24V output (for sensors)

2 IGND isolated areas

3 PEL input positive direction limit (normally closed, low effective)

4 MEL input negative direction limit (normally closed, low effective)

5 PSD input forward deceleration signal

6 MSD input negative deceleration signal

7 ORG input origin signal

8 RES input reset signal (from external)

9 IGND Ground Isolation Area

Differences in PSD signal function (related to sports card models):

When combined with PCI-8134, PSD serves as a forward deceleration signal (Slow Down).

When combined with PCI-8164/PXI-8164/MPC-8164, the PSD of axis 0/1 is mapped to CMP1/2 (compare output), and the PSD of axis 3/4 is mapped to LTC3/4 (latch input). Please refer to the corresponding sports card manual for specific functions.

4. SJ # stepper interface (10 pins)

Used for stepper motor drivers or other brands of servos (pulse direction mode):

Explanation of Pin Signal Direction

1 OUT+output pulse positive terminal (differential)

2 OUT - Output pulse negative terminal

3 DIR+output direction positive terminal

4 DIR - Negative end of output direction

5 EZ+Z-phase input (optional)

6 ALM input alarm signal

7+5V power supply+5V output (for driver optocoupler)

8 SVON output enable signal

9+5V power supply+5V output

10 IGND isolated areas

Note: The pulse/direction of SJ is connected in parallel with the corresponding pin of CNIF internally (but CNIF has two groups of 500k and 2M, which group does SJ use? The manual is not clear, and it is speculated that SJ's OUT ±/DIR ± is connected in parallel with CNIF's 500k group (pins 3-6). Therefore, if using a stepper, JP should be set to 500k mode or confirm signal connectivity.

5. CN1 external power input (2-pin)

Pin signal description

1 EX GND external power ground

2 EX+24V external+24V power input (DC 24V ± 5%)

This power supply supplies power to all isolated side circuits, and it is recommended to provide a current of 1A or above.

6. Jumpers JP1~JP4 (pulse speed selection)

Each axis corresponds to a 6-pin jumper wire JP #, set as follows:

Short circuit mode function

Short circuit pins 1-3 and 2-4 to select 500kpps mode (using pins 3-6 of CNIF)

Short circuit pins 3-5 and 4-6 to select 2Mpps mode (using pins 44~47 of CNIF)

Be sure to set it correctly according to the driver parameters and actual pulse frequency requirements. If the driver settings do not match the jumper, it may result in the inability to receive pulses or positional deviations.

Typical wiring guidance

1. Panasonic MINAS A4/A5 servo drive connection

Use the 50 pin 1:1 dedicated cable provided by ADLINK (with one end connected to CNIF # and the other end connected to the driver CN1 or CN2 port). If self-made, it is necessary to strictly follow the pin definitions for corresponding connections.

Set the JP jumper (500k or 2M) based on the maximum output frequency of the sports card and driver parameters.

Connect the CN2 (100 pin SCSI) of the motion control card to the CN1 input of DIN-814P-A4 via a flat cable.

Connect the external+24V power supply to CN1.

Connect sensors such as limit and origin to the corresponding terminals of IOIF #, paying attention to matching the sensor type (NPN/PNP) with the board input (low level is effective, triggering IGND short circuit).

If using the brake, connect the BRK-OFF+/- of BH to the external brake relay coil.

Before powering on, check all wiring and confirm that there are no errors before powering on.

2. Connection of stepper motor driver

Connect the pulse+, pulse -, direction+, and direction - of the stepper driver to the OUT+, OUT -, DIR+, and DIR - of SJ #, respectively.

If the driver requires an enable signal, connect SVON; If alarm input is required, connect to ALM.

Use+5V to power the driver optocoupler (if needed).

Attention: SJ is connected in parallel with CNIF signal, and CNIF must be left vacant.

3. Wiring of limit, origin, and deceleration sensors

Connect PEL, MEL, ORG, PSD, MSD to the output terminals of the corresponding proximity switch or micro switch, and connect the other end of the switch to IGND or+24V, depending on the sensor type (NPN low effective or PNP high effective). The input of the board is optocoupler isolated and triggered at a low level (short circuit to IGND), so it is recommended to use NPN type sensors.

If a normally closed limit is used, it is normally at a high level (through internal pull-up) and pulled low when triggered.

4. Brake control

Connect the BRK-OFF+and BRK-OFF - of BH to an external relay coil (with a series current limiting resistor or relay module). The brake signal is automatically controlled by the motion card during servo activation or emergency stop to prevent the motor from falling freely after power failure.

5. Analog monitoring (speed/torque)

If real-time monitoring of motor speed or torque is required, SPO (speed monitoring) or IMO (torque monitoring) can be connected to an oscilloscope or ADC input, with an output voltage of ± 10V analog, corresponding to 0~rated speed/torque.

Principles and Compatibility of Circuit Interface

The manual provides internal circuit structures for various signals (see schematic diagram) to facilitate understanding of load capacity:

Limit/origin/deceleration input: Optocoupler isolation, input side needs to be connected in series with a current limiting resistor (onboard), input current is about 5-10mA, low level is effective (i.e. pin to IGND short circuit triggering).

SVON/ERC/RES/C-Mode outputs: open collector output, requiring external pull-up to+24V (there is already a pull-up resistor inside the board).

Differential pulse/direction (500k/2M): RS-422 differential drive, can be directly connected to the differential receiving end of the driver. Select valid pin groups for jumper cables.

Encoder feedback input: differential receiver, built-in 120 Ω terminal resistor.

BRK-OFF output: differential signal, used to drive brake relay (requires external power amplification).

Common problems and troubleshooting

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

Check whether the CNIF cable is connected correctly and whether there is pulse output in OUT ±/DIR ± (measure the corresponding pin with an oscilloscope).

Check whether the SVON signal is valid (usually SVON should be at high level after the sports card software is enabled). Measure the SVON pin voltage of CNIF, which should be close to+24V.

Check if the JP jumper settings match the driver parameters (for example, if the driver is set to pulse input mode, but the jumper selection is incorrect, resulting in the use of the wrong pin group).

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

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 (+24V).

Check: The sensor type matches the input polarity of the board (low validity). If PNP is used, additional conversion or change of software polarity is required.

Check: Whether the sports card software has enabled the hardware limit function and has not blocked the hardware due to software limit.

Problem 3: Abnormal motor operation or positioning deviation

Check if the pulse frequency exceeds the upper limit of the selected jumper mode (500k or 2M). If it exceeds the limit, it is necessary to increase the jumper mode or decrease the command frequency.

Check if the encoder feedback lines EA/EB are reversed or open circuited, resulting in incorrect position loops.

Check: Is the electronic gear ratio (DIV signal) set correctly? If DIV is not connected, the default division ratio may not meet the requirements.

Problem 4: The brakes cannot be released or lock up

Check if there is any output from BRK-OFF+/- (usually after enabling the brake release, emergency stop or power failure, hold tightly).

Inspection: Check if the external relay coil is normal and if the voltage matches.

Check: Check if the polarity of the brake signal is correct (release when BRK-OFF+is high and BRK-OFF - is low).

Problem 5: PSD function does not meet expectations

Confirmation: The sports card model you are using. If it is 8134, PSD is the deceleration signal; If it is the 8164 series and PSD is mapped to CMP or LTC, please refer to the corresponding manual for configuration.

Problem 6: Simultaneous use of CNIF and SJ leads to anomalies

Root cause: The two signals are short circuited, and a physical alternative must be chosen. If switching is required, it is recommended to use an external relay, but the board does not provide it, so only one can be chosen.

Maintenance and safety recommendations

Regularly check the tightness of the wiring terminals, especially the power and brake circuits.

Do not plug or unplug connectors while they are live to prevent static electricity or surge damage.

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

The emergency stop function needs to be implemented at the level of the motion control card (DIN-814P-A4 does not directly provide emergency stop input, it needs to be stopped through the EMG signal of the motion card or software).

For vertical axis applications, it is essential to ensure that the brake circuit reliably holds the brake in case of power failure or emergency stop to prevent falling.