CIRCUIT，DSDP140A

1、 Basic identity information:
Manufacturer: ABB,
Model: DSDP140A,
Original part number: 57160001-ACT,
Product type: Pulse Counter Board,
Adaptation system: ABB Advant OCS, AC800M, 800xA, S100 I/O framework, Advant Controller 450/31 series DCS/PLC platform;
2、 Channel I/O configuration:
Pulse encoder input (1 positioning circuit),
Internal 3-channel differential acquisition, current input specification ± 15mA,
Maximum supported pulse frequency: 80kHz (official standard value),
Adapt to rotary encoders, pulse generators for speed measurement/positioning acquisition,
Digital input DI: 2-channel, 24VDC sinking type,
Digital output DO: 4-channel, 24VDC pull current type (sourcing),
Analog output AO: 1 channel,
Resolution: 11 bits+sign bit,
Output range configurable: 0~10VDC or 0~± 20mA;
3、 Electrical isolation and power supply:
Isolation and voltage resistance between channel and backplane: 500V AC, photoelectric isolation resistant to industrial interference,
Board working power supply: The system backplane is uniformly powered by 24VDC,
Single channel DI/DO load: standard 24V industrial switch load;
4、 Environmental operating parameters:
Working environment temperature: -25 ℃~+55 ℃,
Storage temperature: -40 ℃~+70 ℃,
Humidity: 5%~95% RH, no condensation,
Protection level: Board body IP20 (for use inside the cabinet),
RoHS: Exemption applies and does not belong to the category of conventional RoHS control;
5、 Core functional purpose
Encoder high-speed pulse counting, speed, position closed-loop acquisition,
Supporting switch interlocking (2DI signal acquisition, 4DO execution output),
Analog quantity regulation output (AO is used for speed regulation and valve position setting),
High precision positioning, transmission, and fan/motor speed control scenarios