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.