Graco Reactor E-20 AH9030 [17/76] E31 motor control failure e 30 and e xp2 only

Graco Reactor E-20 AH9030 [17/76] E31 motor control failure e 30 and e xp2 only
Motor Control Diagnostic Codes
312066ZAF 17
3. Check wiring. The orange brush sensor wire coming
out of the brush may be routed online with the
commutator wiring (thick red wire), causing a false
alarm. Reroute the orange wire coming out of the
brush, away from the commutator wiring.
4. Check motor control board.
Remove the plug in J7 (E-20/E-XP1), or J6
(E-30/E-XP2). (This will cause an E27 alarm).
To remove the E27 alarm, use a jumper wire on the
motor control board, across the two pins that the
two yellow wires plug into. Then turn the unit on.
The E27 as well as the E29 alarm should be gone. If
the E27 alarm is not gone double-check your
jumper.
If the jumper is installed correctly and the E29 alarm
is still there, replace the motor control board, page
36.
E31: Motor Control Failure
(E-30 and E-XP2 only)
The E31 error code represents a motor drive error. This
indicates that the 24G881 motor control board has
malfunctioned and needs to be replaced. A motor
control board failure may also be indicated by the motor
starting up immediately upon the application of power to
the system, without pressing . This is an
indication that the output drivers of the motor control
have shorted out and are delivering full power to the
motor at all times.
The cause of the failure may be one of the following
conditions: motor failure, capacitor failure, shorted or
frayed wiring, or inadequate power supply. Perform the
following procedure before replacing the motor control
board.
1. Turn main power OFF . Disconnect power
supply.
2. Perform the Pressure Relief Procedure, page 25.
3. Perform the following inspections.
a. Motor failure: Inspect the motor commutator by
removing the top brush (see Brush Removal,
page 32). Rotate the motor, inspecting the
whole commutator for burns, pocking, or shorts
between poles. Continue rotating the motor for
a complete pump cycle, up and down, to ensure
that there is no mechanical interference or
restriction in the pump lower or gear drive
system.
b. Capacitor failure: Inspect and test the motor
start capacitor, following the Capacitor Test
instructions on page 34.
c. Shorted or frayed wiring: Inspect all wiring
connected to the motor control board and the
motor, for shorts or frayed insulation. Replace
any compromised wires with wire of the same
gauge, color. and temperature rating.
d. Inadequate power supply: Verify that the
power source is of the correct voltage and
current rating for the system, and that all
phases are properly connected. Ensure that the
power does not dip or surge during operation.
Prior to shutting down the generator, ensure
that the motor has stopped and the main
disconnect is opened. If the generator is
stopped during operation, even due to running
out of fuel, the drop in supply voltage may
cause a motor drive failure.
Wait 5 minutes for stored voltage to discharge (E-30
and E-XP2 models only).

Содержание

Скачать