12 | Troubleshooting
26 | 36
Instruction Manual R5 RU 0050-0070 B_EN_en
12
Troubleshooting
DANGER
Live wires.
Risk of electrical shock.
●
Electrical installation work must only be executed by qualified personnel.
DANGER
Live wires. Carry out any work on the variable speed drive and motor.
Risk of electrical shock!
●
Electrical installation work must only be executed by qualified personnel.
CAUTION
Hot surface.
Risk of burns!
●
Prior to any action requiring touching the machine, let the machine cool down first.
NOTICE
Variable speed drive maintenance.
Risk of damage to the variable speed drive!
●
Maintenance and adjustment must only be executed by qualified personnel.
Illustration showing parts that may be involved during troubleshooting:
Problem
Possible Cause
Remedy
The machine does not start.
The Variable Speed Drive (VSD)
is not supplied with the correct
voltage.
●
Check the power supply.
No start signal.
●
Check the connection.
The motor or the Variable
Speed Drive (VSD) is defective.
●
Check the LED on the vari-
able speed drive display, if
red, it is faulty (contact Bus-
ch or read error with soft-
ware).
The coupling (CPL) is defective.
●
Replace the coupling (CPL).
The machine does not reach
the usual pressure on the suc-
tion connection.
Oil level too low.
●
Top up oil.
The inlet screen (IS) is partially
clogged.
●
Clean the inlet screen (IS).
Internal parts are worn or
damaged.
●
Repair the machine (contact
Busch).
