Elmo Rietschle G-BH1e - Manual (Page 42)

610.44521.40.000 42 / 52 © Gardner Denver Deutschland GmbH
Servicing
8 Servicing
 WARNING
Improper use of the pump−motor unit can
result in serious or even fatal injuries!
Have you read the chapter "Safety
instructions"? (
 5)
Otherwise you may not carry out any work with
or on the pump−motor unit!
 WARNING
Improper use of the pump−motor unit can
result in serious or even fatal injuries!
All maintenance work on the pump−motor unit
must always be performed by the Service
Department!
Maintenance work on the pump−motor unit
may only be conducted by the operator when
the related maintenance manual is on hand!
Inquire with the manufacturer!
8.1 Repair/ troubleshooting
8.1.1 Malfunctions at side channel blower
Malfunction Cause Remedy Carried
out by
Open blower cover, remove foreign body,
clean. Service*) Impeller is jammed.
Check or correct impeller gap setting if
necessary. Service*)
Impeller defective. Replace impeller. Service*)
Rolling bearing on drive motor
side or vacuum
pump/compressor side
defective. Replace motor bearing or vacuum
pump/compressor bearing. Service*)
Reduce throttling. Service*)
Frequency
inverter
assumes fault
mode after
controller
enable
See also: 44
Throttling does not match
specification on rating plate.
Clean filters, mufflers and connection pipes
if necessary. Service*)
One power supply lead
interrupted. Eliminate interruption by fuses, terminals or
power supply cables Electrician
DC−bus voltage too low. (Red
LED blinking fast, keypad
display: Lu) Check mains voltage Electrician
Controller inhibited. (Green LED
blinking, keypad display:
 )
Remove controller inhibit. Controller inhibit
can be set through several sources. Operator
Setpoint = 0. Enter the setpoint. Operator
Side channel
blower does not
start
Active fault Eliminate fault Electrician
Operator
Defective motor cable Check motor cable Electrician Side channel
blower
rotates
unsteadily
Motor underexcited or
overexcited. Check parameter setting
(C0015, C0016).