Technical Specifications Multi‑channel high‑speed pulse input interface. Back‑plane system bus interface. Auxiliary power 24 V DC, typical power consumption 4.1 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Galvanic isolation for pulse input channels.
Functional Features Captures high‑speed pulse signals from field pulse‑type instruments. Executes pulse counting and frequency calculation. Uploads counting and frequency data to controller via back‑plane bus. Front‑panel LED indicates pulse receiving and module fault status. Built‑in hardware self‑diagnosis detects input signal circuit abnormality.
Application Scenarios Pulse measurement spare part for industrial automation system. Mainly used for flow totalization, rotating speed detection and incremental encoder position tracking in process plants.
Performance Parameters Supports high‑frequency pulse signal acquisition. Stable counting accuracy under industrial interference environment. Reliable galvanic isolation performance.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Pulse capture, counting logic and signal isolation assemblies. Back‑plane plug‑in connector and field signal terminals.
Structural Characteristics Standard rack‑mount plug‑in module. Front side with field pulse signal terminals and status LED indicators. Rear side equipped with back‑plane bus connector. Weight approximately 0.40 kilogram.
Working Principle Pulse signal from field equipment enters module through front‑end terminals. Internal hardware counting circuit accumulates pulse quantity and computes frequency value. Calculated data is transmitted to controller through back‑plane bus. Diagnosis circuit continuously monitors input channel signal condition.
Installation Requirements Cut off rack auxiliary power before replacement. Insert 70PR05B‑ES into designated rack slot and lock fixing latch. Connect shielded pulse signal cables to front‑end terminals. Confirm back‑plane connector is fully engaged. Restore power supply and verify pulse counting and frequency measuring accuracy.
There are no reviews yet.