haacon ESP Serie Betriebsanleitung Seite 29

9. tROuBlESHOOtinG
Avoiding injuries and damages:
– Malfunctions may only be repaired by sufficiently qualified and authorised persons.
– Secure devicece against unintentional start-up. I.e.switch main switch off and secure with lock.
– Secure range of action of moving components.
– Safety instructions –> Chapter 2.
malfunction Possible causes:
No power supply
Fuse melted
Interruption in the control cable
The motor does not run
The brake does not vent
The switching unit in the control switch is defec-
tive
The overload protection (as of 1000 daN rope
tensile force) is released (with overload)
The motor runs - the
The overload protection (as of 1000 daN rope
load is not hoisted
tensile force) is released (with load ≤ nominal
load)
The motor hums and has The rotor drags
a high power consump-
The brake does not vent
tion
Winding damage Overload (mechanical or electrical)
Worn or oiled brake pad
The motor does not
Excessive air gap
brake or the castor is
excessive
Circuit fault after electrical circuit modification
Defective brake coil
Defective rectifier
The brake does not vent
Exceedance of the permissible air gap due to
worn brake pad
Voltage drop in the supply line > 10 %
Motor or line short circuit
The fuses blow or the
Short circuit to frame or winch short circuit in the
motor protection is
motor
released
Incorrect motor circuitry
(–> 8.9)
Incorrect fuse type
Vent screw in the wrong position
Oil loss
Oil leaking at the shafts / seals
Angle of deflection too great
The rope does not wind
properly on the drum
Winding up of slack rope
Our service department will be glad to help you, if you have any questions (Chapter 1.3).
10. DEcOmmiSSiOninG
Avoid dangerous injuries and damages, therefore observe:
– Safety instructions –> Chapter 2.
– Secure work area.
– Disassembly in reverse sequence of assembly (Chapter 4).
– Dispose the device and the contained materials in an environmental friendly manner.
094414_a_de_gb_fr_eseilwi_s haacon hebetechnik gmbh – Telefon +49 (0) 9375 - 84-0 – Fax +49 (0) 9375 - 84-66
Rectification
Check the power supply connection
Replace the fuse
Refer to the "The brake does not vent" fault
Replace the switching unit
Reduce the load to the nominal load
Check the overload protection and readjust it if
required
Repair motor
Refer to the "The brake does not vent" fault
Repair motor
Completely replace the pad support
Readjust the air gap
Check the brake's connection in accordance
with the circuit diagram
Replace the brake coil
Replace the rectifier
Readjust the air gap, replace the pad support if
required
Assure correct supply voltage
Eliminate the short circuit
Repair motor
Correct the circuitry
Use appropriate fuse
Always attach the vent screw to the highest
position on the drive
Check seals and replace if necessary
Comply with the permitted angle of deflection
Wind up the rope under pretension
GB
29