ABB 1SVP426473R0000 TU525 analog terminal base
1SVP426473R0000 is TU525 analog terminal base belonging to ABB S500 S-series, supporting Freelance DCS and AC500 PLC analog I/O modules. It acts as wiring carrier between analog electronic card and field instrument cables for analog signal conversion wiring. Brand-new original and fully tested refurbished items are used for DCS cabinet assembling and obsolete control system spare replacement.
Description
Product Introduction
1SVP426473R0000 is TU525 analog terminal base belonging to ABB S500 S-series, supporting Freelance DCS and AC500 PLC analog I/O modules. It acts as wiring carrier between analog electronic card and field instrument cables for analog signal conversion wiring. Brand-new original and fully tested refurbished items are used for DCS cabinet assembling and obsolete control system spare replacement.
Model Definition
1SVP is unified part prefix of ABB S500 I/O terminal base coding rule. 426473 corresponds to fixed hardware coding of TU525 analog terminal unit. Suffix R0000 stands for standard factory version without customized hardware modification. TU525 is official model designation of this analog terminal base.
Technical Specifications
Designed for analog AI/AO module matching, multi-group screw terminal layout for 4~20mA, 0~10V analog instrument wiring. Rated auxiliary power DC24V, working ambient temperature -20℃~+60℃, storage temperature -40℃~+85℃, relative humidity 5%~95% non-condensing. DIN rail snap installation, protection grade IP20, CE and UL industrial certification, no built-in channel fuse.
Interface and Communication Configuration
Rear buckle and pin connector for locking and signal docking with upper analog I/O module. Front screw terminals connect with on-site transmitters, valve positioners and analog sensors. No independent bus circuit, all analog data transmits through matched upper I/O card and rack internal backplane bus.
Core Functions
Centralized wiring for matched analog input/output modules, isolate field analog loop and cabinet internal signal circuit, facilitate independent disassembly of terminal base without pulling out core electronic I/O card during field cable maintenance and troubleshooting, optimize cabinet internal cable arrangement.
Application Scenarios
Installed inside DCS control cabinets of chemical industry, thermal power plant, metallurgy and sewage treatment, paired with AI523, AO523 analog modules for flow, pressure, temperature transmitters and analog regulating valve wiring connection.
Operation and Maintenance Instructions
Cut off cabinet DC24V power before removing terminal base or field analog wiring modification and wait residual voltage complete discharge. Conduct semi-annual maintenance to clean terminal dust with dry low-pressure compressed air and retighten loose terminal screws. In case of abnormal analog reading, check field instrument and loop wiring first before replacing terminal base or upper I/O module.
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