VDG TM100B25, Руководство по установке

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14
Troubleshooting
NOTE: If any of the above mentioned attempts to correct the problem have been
performed and the problem persists, contact VDG (Van der Graaf):
Technical Support:
1 (866) 595-3292
Email:
service@vandergraaf.com
The unit will not run 1 . Check for correct connections .
2 . Check for correct power supply voltage .
3 . In a 3 O
/
unit check for equal voltage in
all 3 phases .
The unit runs hot 1 . Make sure the unit is running with a belt . If the
application does not require a belt be sure the
motor is No Belt (NB) series .
2 . Load not to exceed the capacity of the unit .
3 . Check the current draw and make sure it is not
higher than the rated current on the name plate .
The unit will hum , 1 . On 1 O
/
units, check the capacitor and
start but very slowly
starting switch .
or not start at all 2 . On 3 O
/
units, check for equal voltage on
all 3 legs or open phase in the winding .
The unit will trip off 1 . Check the Drum Motor for a short to ground .
overload or fuses 2 . If no short to ground is present, apply the rated
input voltage and with an ammeter, measure the
current and ensure that there is a balance of
+/-10% variance between all three phases .
The unit is noisy
1 . Check the installation of the unit .
2 . Make sure that the arrow on the shaft, opposite
to the junction box, is pointing up .
3 . Check for excess belt tension and relieve .