Picanol GTM Error Code 093

Picanol Textile Major Weaving

Model: GTM | Code: 093

Applicable Systems
GTM

Symptoms

The Picanol GTM weaving machine displays fault code 093: CLUTCH-BRAKE FUSE (CL BRAKE). This indicates that the fast-blow fuse protecting the clutch and brake actuator circuit has blown. The machine cannot start because the clutch-brake system is unpowered, and the loom remains in a stopped state with the fault message displayed on the operator panel.

Possible Causes

  • Short circuit in the clutch or brake coil winding causing excessive current draw and fuse rupture
  • Wiring fault in the clutch-brake power circuit: chafed wire shorting to ground or adjacent conductor
  • PWRG power supply board internal fault causing overcurrent condition that blows the protection fuse
  • Clutch or brake actuator mechanically jammed, causing the coil to draw stall current beyond the fuse rating
  • Incorrect fuse rating installed (too low amperage) causing nuisance blowing under normal load

Troubleshooting Steps

  1. Step 1: Inspect the blown fuse and verify its rating matches the specification in the GTM electrical manual
    Fuse rating should match the value specified for the clutch-brake circuit in the manual; do not install a higher-rated fuse as this risks component damage
  2. Step 2: Check the clutch and brake coil resistance with a multimeter to detect shorted or open windings
    Coil resistance should match the value in the GTM manual; a significantly low reading indicates a shorted winding, high or infinite indicates an open coil
  3. Step 3: Inspect all wiring in the clutch-brake power circuit for chafing, insulation damage, or loose connections that could cause a short
    Wiring should be intact with no exposed conductors; all terminals should be tight
  4. Step 4: If the fuse blows again immediately after replacement with the correct rating, the fault is in the PWRG power supply board
    The PWRG board should be replaced; contact Picanol service or a qualified technician for board replacement
  5. Step 5: If the fuse holds, verify clutch and brake actuation by manually cycling the machine and observing engagement
    Clutch and brake should engage and disengage smoothly without excessive noise or hesitation

How to Reset

To reset: 1) Replace the blown fuse with the correct rated fast-blow fuse as specified in the GTM electrical manual. 2) Clear the fault on the operator panel. 3) Attempt to start the machine. 4) If the fuse blows again, do not repeat replacement -- investigate the short circuit or PWRG board fault first. Caution: Installing a higher-rated fuse to prevent blowing masks the underlying fault and can cause fire or component damage.

Frequently Asked Questions

  • Q: What is the PWRG board on a Picanol GTM loom?

    The PWRG (Power Supply) board is the main power distribution and protection board in the Picanol GTM electrical cabinet. It provides regulated power to the clutch, brake, and other actuator circuits. A fault on this board can cause fuse 093 to blow repeatedly, requiring board replacement.

  • Q: How do I identify the correct fuse rating for the clutch-brake circuit?

    The fuse rating is specified in the Picanol GTM Electrical Diagram and Maintenance Manual. It is typically a fast-blow fuse rated for the clutch and brake coil inrush current. Never substitute a slow-blow or higher-rated fuse, as this bypasses the protection intended to prevent coil damage from short circuits.

Related Picanol Fault Codes

Source: Picanol GTM Machine Messages and Fault Codes Manual

Category: Textile