Phoenix Contact QUINT-PS-100-240AC/24DC/20 2938620

Product Details

QUINT-PS-100-240AC/24DC/20 2938620 Product Description

The Phoenix Contact QUINT-PS-100-240AC/24DC/20 (Part No. 2938620) is a high-performance DIN-rail mounted industrial power supply engineered to sustain uninterrupted 24VDC at 20A across the full breadth of a smart factory data chain. From field-level sensor nodes and remote I/O clusters to PLC control cabinets, HMI panels, SCADA servers, and edge gateway enclosures, this QUINT-series unit delivers the stable, low-ripple DC bus that modern industrial communication networks demand. Its wide-range AC input (100–240VAC, 50/60 Hz) makes it equally at home in European, North American, and Asian grid environments, while its SFB (Selective Fuse Breaking) technology and active power boost capability ensure that downstream circuit breakers trip cleanly without nuisance shutdowns across the entire automation backbone.

In a connected factory architecture, power quality is inseparable from data integrity. Voltage sags, transient spikes, or supply interruptions at the 24VDC rail translate directly into communication dropouts on PROFINET, EtherNet/IP, Modbus TCP, and OPC-UA segments. The QUINT-PS-100-240AC/24DC/20 addresses this by maintaining output regulation within ±1% under dynamic load swings — a critical specification when Phoenix Contact FL SWITCH 2000 series managed Ethernet switches, Siemens S7-1500 PLC racks, and Beckhoff EtherCAT I/O terminals share the same DC distribution bus. Stable power at the infrastructure layer is the first prerequisite for deterministic cycle times and reliable real-time data exchange.

A modern smart factory data flow begins at the physical layer: sensors, encoders, and actuators generate raw process signals that must be reliably powered, captured, and transmitted upstream. The QUINT-PS-100-240AC/24DC/20 anchors this layer by supplying clean 24VDC to field devices — including Phoenix Contact Inline I/O modules (IB IL 24 DI 16 series) and distributed remote I/O stations — ensuring that every digital and analog signal entering the data chain is free from power-induced noise or offset errors.

Moving up the architecture, Phoenix Contact FL SWITCH 2008 and FL SWITCH 2016 managed industrial Ethernet switches aggregate field-level data from multiple PROFINET segments onto a backbone ring. These switches, powered from the same QUINT DC bus, enforce VLAN segmentation and RSTP ring redundancy, guaranteeing sub-50ms failover times that protect real-time PLC scan cycles. Siemens S7-1500 or Allen-Bradley ControlLogix PLCs sitting at the control layer poll I/O data via PROFINET or EtherNet/IP at deterministic intervals; any power instability at the 24VDC rail would corrupt these cyclic frames and trigger watchdog faults across the entire cell.

At the HMI and SCADA integration layer, Weintek cMT or Siemens TP1200 Comfort HMI panels draw their 24VDC supply from the QUINT unit while simultaneously exchanging tag data with SCADA platforms such as Ignition or WinCC over OPC-UA or Modbus TCP. The QUINT's active power boost (SFB) ensures that HMI cold-start inrush currents — which can momentarily reach 3–5× rated load — do not collapse the bus voltage and interrupt ongoing SCADA polling sessions. This is particularly important in multi-panel control rooms where several HMI units share a common DC distribution bar.

Edge intelligence is increasingly embedded between the field and the cloud. Phoenix Contact PLCnext Control AXC F 2152 edge controllers and third-party IIoT gateways (such as Moxa MGate MB3660 Modbus-to-MQTT converters) rely on stable 24VDC to maintain persistent MQTT or OPC-UA sessions with cloud analytics platforms. A power interruption at this node breaks the data pipeline entirely, causing gaps in time-series databases and triggering false alarms in predictive maintenance dashboards. The QUINT-PS-100-240AC/24DC/20's built-in DC OK relay contact can be wired directly into a PLC digital input or a SCADA alarm tag, providing an early-warning signal before output voltage drops below threshold — a key feature for remote diagnostic workflows where on-site intervention is costly.

Variable-frequency drives (VFDs) such as the Phoenix Contact CONTACTRON series motor starters and third-party Danfoss FC302 drives also depend on a clean 24VDC control supply for their digital I/O, fieldbus interface cards, and safety relay circuits. Powering these control circuits from the QUINT unit — rather than from an unregulated auxiliary winding — eliminates ground-loop interference that commonly corrupts PROFIBUS DP or CANopen communication frames on drive-intensive production lines. The result is a measurable reduction in CRC error rates and retransmission overhead across the entire drive network segment.

Protocol fragmentation is one of the most persistent challenges on brownfield automation sites. Legacy PROFIBUS DP segments, newer PROFINET islands, and Modbus RTU field devices often coexist without a unified power strategy, leading to ground potential differences that corrupt inter-protocol gateways. By standardising on a single high-quality 24VDC source — the QUINT-PS-100-240AC/24DC/20 — engineers eliminate the most common root cause of intermittent gateway faults between protocol converters and their connected field devices.

Data islands form when remote I/O stations or edge nodes lose power momentarily and drop off the network scan list. The QUINT's SFB boost technology and its ±1% output regulation under transient loads prevent these micro-outages, keeping every node continuously visible to the SCADA historian and eliminating the data gaps that undermine OEE calculations and shift reports.

Remote monitoring becomes reliable only when the power infrastructure itself is observable. The QUINT-PS-100-240AC/24DC/20 provides a DC OK signal contact and supports optional signalling modules (QUINT-ORING, QUINT-DIODE) for redundant supply configurations. These signals can be mapped to SCADA alarm tags, enabling operations teams to monitor PSU health from a central control room or a mobile dashboard without dispatching field technicians.

Production line transparency and alarm traceability depend on timestamp accuracy. When a power event causes a PLC to restart, its internal clock may drift or reset, corrupting the alarm log sequence. The QUINT's fast response time (<5ms to full load) and hold-up time (>20ms at full load) bridge most PLC watchdog windows, preserving clock continuity and ensuring that alarm timestamps remain accurate for post-incident root-cause analysis.

System expansion is straightforward: the QUINT-PS-100-240AC/24DC/20 can be paralleled using QUINT-ORING modules for N+1 redundancy, or combined with QUINT-UPS battery modules to extend hold-up time during extended grid outages — making it a scalable foundation for phased smart factory rollouts without requiring a complete power architecture redesign.

Q1: Does the QUINT-PS-100-240AC/24DC/20 support PROFINET or EtherNet/IP communication directly? The QUINT-PS-100-240AC/24DC/20 is a DC power supply, not a fieldbus node. It does not itself communicate over PROFINET or EtherNet/IP. However, it powers all devices on those networks — PLCs, managed switches, remote I/O, HMI panels, and gateways — and its DC OK relay output can be wired to a PLC digital input for integration into PROFINET diagnostic routines or SCADA alarm management systems.

Q2: How does this unit support remote diagnostics and predictive maintenance? The built-in DC OK relay contact changes state when output voltage falls below the set threshold, providing an early-warning signal that can be mapped to a SCADA tag or PLC alarm. Combined with optional QUINT-ORING redundancy modules, operations teams can monitor PSU health remotely, schedule preventive replacement before failure, and avoid unplanned downtime on critical production lines.

Q3: Can the QUINT-PS-100-240AC/24DC/20 be used in redundant power configurations for high-availability automation networks? Yes. Phoenix Contact's QUINT-ORING and QUINT-DIODE modules allow two QUINT-PS-100-240AC/24DC/20 units to be connected in a redundant (N+1) configuration. If one PSU fails, the second takes over within microseconds — well within the hold-up window of most PROFINET and EtherNet/IP controllers — ensuring continuous network availability for SCADA, HMI, and edge gateway nodes.

Q4: What warranty and pre-shipment testing does NANKMOS provide for this unit? Every QUINT-PS-100-240AC/24DC/20 supplied by NANKMOS carries a 12-month warranty and undergoes functional output testing before dispatch. Units are shipped from in-stock inventory with full traceability documentation. For volume orders or urgent project timelines, contact NANKMOS at [email protected] or +86 18359268345 to confirm lead times and availability.