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Reactor E-20 PH9030
Техническая документация Страница: 17

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Reactor E-20 PH9030
Техническая документация Страница: 17

Graco Reactor E-20 PH9030 — устранение ошибок управления мотором: диагностика и советы [17/76]

Превью страниц Страница 17 / 76

Graco Reactor E-20 FP9034 [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).

Graco Reactor E-20 PH9030 — устранение ошибок управления мотором: диагностика и советы [17/76]

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