Fives Group 503-18011-01 Power Supply Module

Technical Specifications

Model： 503-18011-01

Brand： Fives Group (Giddings & Lewis)

Product Type: Rack mount switching power supply unit for legacy PIC900 CNC control rack

Module Feature:

Function: Rack power supply module for Fives Group PIC900 CNC platform. Converts AC mains input to stable DC output rails (+5VDC, ±15VDC). Supplies power to all backplane control boards including CPU, motion control, I/O and communication modules for heavy horizontal boring mills and large machining centers.

Input: 100-240VAC Output: +5VDC, +15VDC, -15VDC Onboard components: AC input filter, rectifier circuit, high-frequency switching transformer, output sampling & feedback circuit, overvoltage / overcurrent / overtemperature protection circuit

LED indicators: POWER, OK, FAULT diagnostic lights

Hardware self-diagnosis: Output rail voltage monitoring, overheat detection, input power loss alarm

Programming software: Fives Group proprietary CNC software for power rail diagnostic reading

Electrical Parameters

AC Input: 100 ~ 240VAC DC Output: +5VDC, ±15VDC

Power rating: Max 160W

Mechanical & Structure:

Mounting: Rack slot mount Weight: 1.25kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy PIC900 rack power supply module

System compatibility

Compatibility description: 503-18011-01 belongs to Fives Giddings & Lewis PIC900 CNC power family. Designed for PIC900 control rack, compatible with all PIC900 series rack boards. Widely fitted on heavy Fives horizontal boring mills.

Function

Function description: 503-18011-01 is rack switching power supply manufactured by Fives Group (Giddings & Lewis). It provides multi-channel regulated DC power to the entire CNC backplane. Built-in protection functions shut down output automatically in case of overvoltage, overcurrent or overheat to prevent damage to expensive control PCBs. It is the primary power source for legacy PIC900 CNC rack on heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Disconnect AC mains power of CNC rack. Insert 503-18011-01 power module into rack slot and secure fasteners. Connect AC input cable and backplane power connector. Restore AC power, verify POWER and OK LED indicators, run power rail voltage diagnostic test.

Interface

Interface list: AC input terminal, backplane power connector,on-board POWER / OK / FAULT LED indicators for Fives Group 503-18011-01.

Diagnostic

Troubleshooting: No output voltage: Check AC input fuse, mains supply or rectifier component failure. FAULT LED lit: Overcurrent trip, output short circuit or internal overheat protection triggered. Intermittent system crash: Voltage ripple excessive, aging electrolytic capacitor or poor contact on backplane connector.

Product Brief

Brief description: 503-18011-01 is Fives Group legacy PIC900 rack power supply module,provides +5V / ±15V regulated DC power for CNC control rack boards on heavy CNC boring mills,discontinued CNC rack power spare.