BUSCH R 5 series User Manual

12 | Troubleshooting
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The machine does not reach
the target pressure (pressure
control mode only).
The machine is over or un-
dersized for the application.
Leaks or pressure drops in
the pipework upstream the
suction connection.
• Check the system pipe-
work.
• Ask Busch for advice.
Communication problems
when the machine is re-
motely controlled.
A wire is cut or not connec-
ted.
The connection is not prop-
erly made.
Wrong settings between the
machine and network.
• Check the wiring between
the machine and the net-
work.
• Check remote control
parameters, refer to the
specific document “Pump
Control Instructions, art.
no.: 0870213261”.
Table 2
Message Possible Cause Remedy
Oil level
(alarm)
Oil level too low. • Top up oil,
see Filling Oil [►16].
Oil temperature
(warning + alarm)
Oil temperature too high. • See problem "The ma-
chine runs too hot".
Exhaust gas pressure
(warning + alarm)
Exhaust gas pressure in the
oil separator (OS) too high.
• Replace the exhaust filters
(EF), see Exhaust Filter
Change [►45].
Inlet pressure
(warning + alarm)
Inlet pressure too high.
The machine has operated
for too long at a high inlet
pressure.
• Reduce the the inlet pres-
sure.
• Limit the operating time
at a high inlet pressure.
Exhaust gas temperature
(warning + alarm)
Exhaust gas temperature too
high.
• See problem "The ma-
chine runs too hot".
Electrical cabinet tempera-
ture
(alarm)
Temperature in the control
unit too high.
Insufficient cooling.
Ambient temperature too
high.
• Remove dust and dirt
from the machine.
• Check the heat ex-
changer.
• Observe the permitted
ambient temperature.
Sensor disconnected
(alarm)
At least one of the analog
sensors has been disconnec-
ted.
• Check the electrical con-
nection of the sensors.
Inverter (VFD)
(alarm)
Variable-frequency drive
(VFD) default.
• Check the variable-fre-
quency drive by an elec-
trician.
• Repair the variable-fre-
quency drive (contact
Busch).
EMO The emergency stop has
been actuated.
• Clarify the reason of the
emergency.
• Solve the problem and
follow the Warning/
Alarm Acknowledgment
Procedure [►40].
Low battery
(alarm)
The PLC battery is low. • Replace the PLC battery
(contact Busch).

BUSCH R 5 series Specifications

General

Brand	BUSCH
Model	R 5 series
Category	Water Pump
Language	English