Burkert Type 3002 - Handbuch (Seite 21)

3001S / 3002S - 19
english
ERROR CORRECTION
1) 230 V 184–202
Ω
120 V 35,2–38,8
Ω
Resistance measurement on plug 3001-186 from middle contact.
Problem Test Fault Remedy
Motor does not run
- no humming
Check connection. Is
voltage applied to circuit
board? Motor
overheated?
Motor without voltage
Fix connection
Power supply not in
order
Thermal circuit
breakerhas switched off
motor due to
overheating
Allow motor to cool,
avoid further
overloading
Are serveral actuators
connected in parallel?
Limit switch welded
Drive actuators
separately or via relay
Capacitor defective Replace capacitor and
limit switch
- Motor humming
Is it possible to turn the
actuator by emergency
manual operation or only
with great difficulty?
Gear or motor blocked Return actuator to
factory
Fuse comes into
action
Is the drive connected
properly? No.
Resistance of windings
outside tolerance range 1)
Short circuit caused by
connection fault.
Winding defective.
Fix connection
Return actuator to
factory
Motor runs on
Tripping cams do not
operate limit switch.
Limit switch lug or
block bent
Exchange circuit board
with limit switch block
Limit switch not working
(audibly). Limit switch
mechanically defective
Microswitch operates
too late
Set tripping cams
according to instructions
Wrong direction of
rotation
(3-position regulator)
Compare connections
with circuit diagram Connections
interchanged
Connect according to
circuit diagram
Potentiometer
doesn't follow the
movement
(completely)
Does the potentiometer
clutch slip? Yes.
Defective clutch Replace clutch (if no
success also
potentiometer)
Does the
potentiometeraxis
rotate? No.
Defective potentiometer
Replace potentiometer
External control
doesn't work via
potentiometer
Does the potentiometer
voltage follow the
movement? Yes.
No.
Outer control or realy
circuit defective
Fix outer circuit
see "Potentiometer doesn't follow"