Application and Configuration of ADLINK DIN-814Y Adapter Board

IGND - Ground reference for all isolated signals, separated from Digital Ground (DGND).

2. SJ # stepper interface (10 pins)

For stepper motor drivers, DIN-814Y provides a simplified interface with signal definitions as follows:

OUT+, OUT -: Pulse signal differential output (same as the OUT signal of the servo interface).

DIR+, DIR -: Differential output of directional signals.

EZ+: Encoder Z-phase input (used for step closed loop or origin signal, not necessary).

ALM: Driver alarm input.

SVON: Enable output.

+5VO: Provides a+5V power supply (up to 100mA) to power the optocoupler input of the stepper driver.

IGND: Quarantine location.

Note: The pulse/direction of the stepper interface and the corresponding pulse/direction of the CNIF are electrically parallel, so they cannot be connected to external devices at the same time.

3. IOIF # mechanical I/O interface (10 pins)

This is the key interface for connecting sensors such as limit and origin on site:

PEL: Positive End Limit - a normally closed contact that prohibits forward movement when triggered.

MEL: Negative End Limit.

ORG: Origin signal.

PSD: Positive Slow Down signal, used to reduce speed before approaching the limit.

MSD: Negative deceleration signal.

RES: Reset signal (clearing errors or interrupting current motion).

+24VO and IGND: Provide isolated power supply for sensors.

Special note: PSD signals have different meanings on different motion cards:

When combined with PCI-8134, PSD serves as a forward deceleration signal (i.e. 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). For detailed functions, please refer to the user manual of the corresponding sports card.

4. BH # auxiliary interface (16 pins)

The BH interface provides some Yaskawa specific signals that have not been extracted from CNIF, including:

SEN (absolute value reset), BAT+/BAT - (battery), PSO+/PSO - (S phase), P-CON (proportional control) V-REF、T-REF、/P-CL、/N-CL、AL01~AL03、PL1（+12V）、+24VO、IGND。

This interface is mainly used to facilitate users to directly connect the additional function cables of the driver without using standard CNIF cables. There are also LED indicator lights next to BH, displaying the status of PEL, MEL, and ORG for easy on-site confirmation.

5. CN1 external power input

The board requires an external isolated power supply of+24VDC ± 5%, which is input through CN1 (two pin). This power supply supplies power to all isolated side circuits (including optocouplers, relay outputs, etc.), please ensure that the power capacity is sufficient (recommended at least 1A). There is also a spare CN1 on the board, which is connected in parallel internally, making it convenient for users to choose the wiring location.

Key application scenarios and wiring guidance

1. Typical connection of servo system (Yaskawa)

Connect the DIN-814Y CNIF1 to the Yaskawa servo drive CN1 (or CN2) port using a dedicated cable (such as ADLINK matching cable or self-made differential cable).

Connect the axis interface of the sports card (usually 68 pin SCSI or D-sub) to the corresponding axis input port (labeled on the board) of DIN-814Y through a flat cable.

Connect the external 24V power supply to CN1.

Connect the limit and origin sensors to the PEL, MEL, and ORG terminals of IOIF1, respectively. Note that the sensor type (NPN/PNP) needs to be compatible with the board (the board is designed as an NPN normally closed type, but can be adapted through jumpers or external relays).

After checking for accuracy, power on and the motion card should be able to enable servo and read encoder feedback normally after initialization.

2. Connection of stepper motor system

Connect the pulse+, pulse -, direction+, and direction - of the stepper driver to the OUT+, OUT -, DIR+, and DIR - of SJ1, respectively.

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

Use the+5VO of the board to power the optocoupler end of the driver (if the driver requires an external power supply).

Similarly connect the limit and origin to IOIF1.

Note: Due to the parallel connection of SJ and CNIF signals, if one axis is not connected to servo, SJ can be connected to stepper, but not both at the same time.

3. Multi card synchronization and SSI (not DIN-814Y function, but mentioned)

The DIN-814Y itself is passive, and synchronization is achieved through the SSI bus by a sports card (such as the 8164 series). The DIN-814Y is only responsible for signal fan out.

Common problems and troubleshooting

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

Check: Does V-REF have voltage output? If it is 0, check if the motion card DAC output configuration and SVON are set high.

Check whether the IGND of CNIF is well connected to the driver ground, and the analog signal needs to be grounded.

Check if the servo parameters have been set and if the external speed command is valid.

Problem 2: The limit signal trigger is invalid, and the movement continues

Check whether the PEL/MEL of the IOIF terminal is wired correctly, and whether the sensor type (normally open/normally closed) matches the default logic of the board (normally closed). If using normally open, polarity reversal needs to be set in the software.