Designs, materials, weights and performance ratings
are approximate and subject to change without notice.
Visit
armstrong
international.com for up-to-date information.
Armstrong
International
221 Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Tel. (269) 279-3602 Fax. (269) 279-3130
Page 29 of 44
DRV40-80 Gen. 2 Troubleshoot Guide
Motor Error/Safe Mode
Has the valve been reset
(i.e. powered off, then on)?
Is the valve free of any
leaks coming out of
bottom of valve?
Is the front electronics
enclosure closed?
Are all cables/wiring &
connectors ok?
Are the valve internals free
of debris and clean?
Are supply pressures
nominally equal
(within 5psi)?
Are the O-Rings/Seals
in good condition & not
preventing the spool travel?
Is the valve PCB
operational and ok?
Is the motor operational?
(i.e. is it able to turn/drive
gears?)
Is the valve PSU
operational and ok?
Reset the valve by
powering down & then
powering back on
Replace GDA
Check strength of
magnets inside rotor;
if not sufficient,
replace rotor
Close door fully against
valve body
Ensure all wires are
not pinched & plugs
are connected; if
needed replace cable
loom
Remove valve internals
and thoroughly clean
Equalize pressures
Remove valve internals
& check O-rings/Seals
to ensure they are
smooth; if not, replace
Replace Ele. Housing
Replace motor
Replace Ele. Housing
Issue addressed or
Contact
Factory @ 269-279-3602
Key:
PSU = Power Supply GDA = Gear Drive Assembly
PCB = Printed Circuit Board
Check
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Is the magnetic rotor
attached to the motor
operational?
Summary of Contents for Digital-Flo DF41540
Page 45: ...Notes...
