BUSCH MINK MM 1102 BV, Инструкция по эксплуатации

Страница: 17 / 56

MM 1104, 1144, 1102, 1142 B V ATEX-Version, Gas Tight
0870141675 /
190709
page 17
The vacuum pump does not start The drive motor is not supplied with the
correct voltage or is overloaded Supply the drive motor with the correct voltage
The drive motor starter overload protection is
too small or trip level is too low Compare the trip level of the drive motor
starter overload protection with the data on the
nameplate, correct if necessary
One of the fuses has blown Check the fuses
The connection cable is too small or too long
causing a voltage drop at the vacuum pump Use sufficiently dimensioned cable
The vacuum pump or the drive motor is
blocked Make sure the drive motor is connected from
the power supply
Remove the fan cover
Try to turn the drive motor with the vacuum
pump by hand
If the vacuum pump is blocked:
Repair the vacuum pump (Busch service)
The drive motor is defective Replace the drive motor (Busch service)
(in order not to compromise the explosion
safety of the vacuum pump the coupling must
be adjusted and measured according to a
precisely defined procedure; therefore the
coupling element must be replaced by the
Busch service only)
The vacuum pump is blocked Solid foreign matter has entered the vacuum
pump Repair the vacuum pump (Busch service)
Make sure the suction line is equipped with a
screen
If necessary additionally provide a filter
Corrosion in the vacuum pump from remaining
condensate Repair the vacuum pump (Busch service)
Check the process
Observe the chapter Conveying Condensable
Vapours (
➔
page 12)
The vacuum pump was run in the wrong
direction Repair the vacuum pump (Busch service)
When connecting the vacuum pump make
sure the vacuum pump will run in the correct
direction (
➔
page 6: Installation)
The drive motor is running, but the vacuum
pump stands still The coupling between the drive motor and the
vacuum pump is defective Replace the coupling element
(in order not to compromise the explosion
safety of the vacuum pump the coupling must
be adjusted and measured according to a
precisely defined procedure; therefore the
coupling element must be replaced by the
Busch service only)
The vacuum pump starts, but labours or runs
noisily or rattles
The drive motor draws a too high current
(compare with initial value after
commissioning)
Loose connection(s) in the drive motor
terminal box
Not all drive motors coils are properly
connected
The drive motor operates on two phases only
Check the proper connection of the wires
against the connection diagram
(particularly on motors with six coils)
Tighten or replace loose connections
The vacuum pump runs in the wrong direction
Verification and rectification
➔
page 6:
Installation and Commissioning
Foreign objects in the vacuum pump
Stuck bearings
Repair the vacuum pump (Busch service)