
Section 7 Troubleshooting
SG7 Manual
www.rottlermfg.com
7-3
Problem
Possible Cause
Solution
Eccentricity Problems when
Cutting Three Angle Seats
Worn or improperly selected pilot Check pilot for wear and straightness
Dull or damaged cutter insert
Replace insert
Incorrect pilot selection
Follow directions in manual for
selecting pilots
Worn tool holder
Check tool holder with bore gauge to
determine if there wear
Worn valve guide
Service valve guides before attempting
to cut valve seats
SG Fault and Error Codes
Errors are sensed by the SG controller. The left display shows Err.
Faults are sensed by the motor driver. The left display shows FLt.
Alarms are sensed by the motor driver. The left display shows ALr.
To clear an error requires the condition be resolved (correct wiring...) and cycle the e-stop.
To clear fault requires the condition be resolved (correct wiring...), press the reset key on the drive front
panel, and cycle the e-stop. If e-stop is cycled long enough the drive will power down and that will clear
the fault too.
Alarms clear as the condition that caused them disappears (the over torque is relieved...).
Error Display
Description
C bUS
Communications lost with drive
Fault Display
Description
Uv1
Undervoltage
Uv2
Control Power Supply Undervoltage
Uv3
Soft Charge Circuit Fault
GF
Ground Fault
oC
Overcurrent
ov
Overvoltage
oH
Heatsink Overheat
oH1
Heatsink Overheat
oH3
Motor Overheat (PTC input)
oH4
Motor Overheat (PTC input)
rH
Braking Resistor Overheat
oL1
Motor Overload
oL2
Drive Overload
oL3
Overtorque Detection 1
Содержание SG7
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