Motion 3000ES Escalator Control
62 Manual # 42-02-E001
E.LSF
DC Bus charging error. Occurs for a short
time during drive power up but clears auto-
matically if no real error exists.
• Input voltage wrong or too low.
• High supply line resistance.
• Incorrect brake resistor connection.
• Braking transistor not functioning.
• Inverter failure.
E.EnC Encoder failure.
• Encoder connection problem.
• Encoder channels reversed.
E.EnC 1
Encoder signal loss; wrong rotation direc-
tion or too much drag.
• Encoder signal missing.
• Check encoder connections and signals.
E.EnCC
Encoder communication error. Serial com-
munication problem with encoder.
• See parameters 2.LF.26.
• Clear through 0.LF.26 when ready.
E.PuC 1
Power unit code. Power stage not identified
during initialization.
• Replace drive.
E.PuCH
Power unit code changed. Typically experi-
enced when changing control cards.
• Unit will automatically configure for new
power stage and clear error.
• Drive maintains history for reference.
• Clear through parameter US.27.
E.br
Error current check. Before each run, drive
sends current to each motor phase to ver-
ify. Then applies magnetizing current and
monitors.
• One or more motor leads disconnected.
• Motor contactor timing incorrect.
• Motor contactor damaged or burnt.
• Motor windings damaged.
• Drive unable to generate acceptable current
levels.
• May be bypassed through US.25 = 1.
E.hybC Encoder card changed.
• Error will clear automatically.
• New feedback card will be recognized.
• Unit maintains history.
E.hyb Encoder card invalid. • Damaged encoder card.
E.OH2 Electronic motor overload.
• Motor current exceeds LF.9 or LF.12.
• Mechanical load excessive.
• Check motor data LF.10 - LF.19.
E.buS
Serial communication between keypad and
drive lost. (Bypass through US.29.)
• Error will clear when communication is
restored.
• If not, remove keypad, cycle drive power,
verify red pilot LED on steady, reinstall key-
pad.
• Check KEB manual.
bbL
Precedes most faults. Also occurs if the
drive enable is turned off while the car is
running.
• Indicates output transistors have been
safely shut off and are being blocked from fur-
ther operation.
Table 21. KEB Drive Error Displays
Display Description Cause
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