SAWANA JS48S-2Z Timer Relay DC24/12V AC110/220V

Engineer's Quick Brief

The SAWANA JS48S-2Z is a premium, high-density industrial digital timer relay designed for deterministic process scheduling and automatic cycle sequence control. Belonging to the industry-standard 48x48mm panel cutout family, this high-performance time relay offers an incredibly wide timing spectrum ranging from fractions of a second up to hundreds of hours. Engineered with universal voltage adaptability covering DC24V/12V and AC110V/220V control grids, the JS48S-2Z provides automation technicians with precise thumbwheel switch adjustment matrix setups, rendering it an optimized solution for star-delta motor starters, automated industrial ovens, and packaging line conveyors.

Technical Specifications

Application Matrix

Koeed B2B Tool: 8-Pin Relay Pinout Mapping & Time-Sequence Calibrator

Field specialists must map terminal socket wire lines correctly to prevent coil failures and optimize load time delays. Select your model specification parameters below to decode pin assignments and calculate sequence variables.

Troubleshooting & Electrical Diagnostics FAQ

Q1: Why triggers the JS48S-2Z digital display screen to activate but fail to shift contact output states after timing out?

This defect typically indicates that the input control voltage tracks significantly lower than the minimum nominal excitation boundary, or the internal copper contacts have experienced advanced electrical pitting. Electronic timer circuits can initialize their LED displays at low source metrics (down to 75% of spec), but the internal magnetic coil assembly requires a full 85% to 110% potential range to overcome return spring resistance and physically slide the mechanical armature. Measure across socket terminal nodes **2 and 7** using a digital multimeter under loaded states to verify line potential integrity.

Q2: How can technicians configure the device terminal layout to clear memory states instantly without cutting main panel line power?

The standard JS48S-2Z variant achieves timing zero-reset parameters by briefly dropping coil power across nodes 2 and 7. However, if your specific variant card layout features dedicated internal auxiliary reset terminals, do not route line potential to those logic blocks. If rapid panel recycling is an engineering requirement, wire a **Normally Closed momentary push button switch** in series directly along the steering line leading into terminal pin 7 to allow field teams to clear cycles manually.

Q3: What root conditions cause the digital relay screen to continuously flicker or execute erratic counting jumps?

Flickering displays or random numerical jumps point toward heavy alternating electromagnetic noise (EMI) leaking into low-voltage steering conduits, or severe high-frequency voltage ripples propagating down the direct current auxiliary loop power distribution rail. Ensure all low-voltage control conductors are completely separated from heavy AC motor lines, switching variable frequency drive (VFD) tracks, and inductive braking lines. If voltage ripples cannot be eradicated, integrate a dedicated industrial **surge suppressor filter module** right before the socket entry nodes.

Cross-Reference Guide

When tracking equipment databases, modernizing legacy automation modules, or organizing facility backup warehouse stock levels, note the following direct selection compatibility parameters:

• Direct Drop-in Matching: Fits seamlessly as a direct dimensional and structural electrical replacement alternative for standard 8-pin digital display time relays sharing the 48mm square template layout, such as classic DH48S, H5CX, or Omron H3CR style series configurations provided pin definitions align with your application profile.
• System Platform Interoperability: Integrates smoothly into standardized control enclosures alongside low-voltage thermal overload contactors from global apparatus brands like Schneider Electric (LC1-D series), Siemens (3RT series modules), and ABB, provided standard pilot current requirements fit the continuous 5A contact threshold.