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HOIST BRAKE SOLENOID VALVE
from Cat Electric Rope Shovel 465 Series IGBT Shovel HMI - WINCC Manual (Service Manual) - PDF DOWNLOAD
• Swing Break Valve (Q 17.0)
A “1” at this output activates Swing Brake Solenoid Valve and releases brake.
Hoist Brake Solenoid Valve
• Hoist Drive Minimum Current (DB3410.dbx0.4) • Hoist Drive On (To SiBas) (Q 24.1)
This is a command bit to SiBas to turn on the Hoist drive.
• Hoist Brake Valve (Q 16.0)
A “1” at this output activates Hoist Brake Solenoid Valve and releases brake. • Hoist Speed < 2.5 Hz (DB3410.dbx1.7) • Hoist In Regeneration (DB3418.dbx1.1) • Hoist Gate Blocked (DB3418.dbx0.0)
The Hoist Gate Blocked signal from SiBas indicates either a Hoist drive fault or Hoist drive is not on.
• Machine Stop Pushbutton (I 33.0)
• Power Off Emergency Pushbutton (I 33.1)
POEB button is a NC switch which is on when no emergency..