PFlow Industries F Series - Motor and Brake Troubleshooting

15705-011 | Rev  | 2022-03-01 | e-mail csd@pow.com Section 11 | 5
Section 11 | SEW Eurodrive Motor
Maintenance and Troubleshooting
www.pflow.com
P 414 352 9000
F 414 352 9002
6720 N. Teutonia Ave.
Milwaukee, WI 53209
Troubleshooting
the Motor
The following table identies some of the most common issues with speed
reducers, the possible causes, and the suggested solution.
Malfunction Possible Cause Solution
Motor does not start
Sppl cale intepted. Vei te connections and intemediate teminal
points. Coect i necessa.
ae does not elease. Review ae tolesootin.
Sppl cale se as lown. Replace se.
oto potection switc as
tieed.
Vei tat te moto potection switc is set
coectl. Ree to te specication on te
nameplate.
oto potection does not
tip.
nspect moto potection contol.
alnction in contol o in
te contol pocess.
seve switcin seence. Coect i necessa.
Motor only starts with
diiculty or does not
start at all
oto powe desined
o delta connection t
connected in .
Coect te connection om  to delta. Ree to te
wiin diaam.
oto powe desined o
 connection t onl
connected to .
Coect te connection om  to . Ree to te
wiin diaam.
Voltae o eenc dies
consideal om te
setpoint at least wen switc
on te moto.
ovide ette sppl sstem. Redce te powe
sppl load. nspect coss section o sppl cale.
Replace wit cale o lae coss section i
necessa.
Motor does not start in
Y connection, only in
delta connection
 connection does not povide
scient toe.
 te delta ins cent is not too i oseve
te elations o te powe spplie stat p
diectl in delta.
Contact alt on delta
switc.
nspect te switc. Replace i necessa.
nspect te wie connections.
Incorrect direction of
rotation
oto connected incoectl. Swap 2 pases o te moto sppl cale.
Motor hums and
has high current
consumption
ae does not elease. Review ae tolesootin.
indin is deective. Send moto to specialist wosop o epai.
Roto is in. Send moto to specialist wosop o epai.
Fuses blow or motor
protection trips
immediately
Sot cicit in te moto
sppl cale.
liminate sot cicit.
Sppl cales connected
incoectl.
Coect te connection. Ree to te wiin
diaam.
Sot cicit in te moto. Send moto to specialist wosop o epai.
Gond alt on moto. Send moto to specialist wosop o epai.