JUMO 701140/8888-888-23-064 Temperature Controller Limiter

Configured for thermal threshold monitoring in thermal processing equipment, the JUMO 701140/8888-888-23-064 (701140 Temperature Controller) provides direct physical/electrical execution. It measures raw analog sensor inputs natively at the field tier to execute hardware shutdown sequences parallel to master control network platforms when thermal values drift beyond assigned safety limitations.

Hardware Specifications

Industrial Control & Drive Integration

• Backplane Bus Communication Velocity Licences and Relay Interlocking: The self-contained safety limiter interfaces with the system architecture through hardwired fault signaling contacts. It processes safety cutouts locally within millisecond threshold windows, ensuring that primary power circuit isolation occurs without relying on secondary backplane bus communication velocity data packets or external controller bus cycles.
• Profinet / EtherNet/IP Deterministic Networks Mapping: Auxiliary status flags and limit program violations compiled by the internal processor are linked to intermediate network gateways. This layout transfers critical trip telemetry over Profinet / EtherNet/IP deterministic networks, enabling supervisory PLCs to record safety trip events alongside historical process parameters.
• I/O Density Scaling and Localized Loop Separation: By dedicating a localized physical unit to the primary thermal shutdown function, the hardware optimizes cabinet-level I/O density scaling profiles. The separate limit tracking loops operate outside the standard PLC runtime system, keeping core automation modules unburdened by independent safety monitoring tasks.

Frequently Asked Questions

Q: What specific hardware behaviors manifest if the external AC supply voltage drops below the minimum 110 VAC rating while the limit program is running?

A: The internal brownout detection circuit identifies the voltage degradation, drops the internal safety monitoring relays instantly to isolate downstream loads, and flags a power fault code. The unit locks out further execution until the power bus returns to the nominal 110-240 VAC range.

Q: Can this 0.31 lbs temperature limiter be adjusted or reset over the communication lines once a hard thermal limit trip occurs?

A: No. Per standard industrial protection protocols, a safety temperature limiter requires a physical manual reset action directly at the device front interface or via a dedicated local digital input loop after process temperatures fall back below the programmed threshold point.