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Reactor E-20 PH9030
Техническая документация Страница: 11

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Graco
Reactor E-20 PH9030
Техническая документация Страница: 11

Graco Reactor E-20 PH9030 — диагностика кодов управления температурой и проверка соединений [11/76]

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Graco Reactor E-20 FH9030 [11/76] E02 high zone current

Temperature Control Diagnostic Codes

312066ZAF 11

3. Check connections between the temperature

control board and overtemperature switches A and

B (308), and between temperature control board

and thermocouples A and B (310) or FTS (21)

[depending on which zone is displaying E01]. See

Table 5, page 39. Ensure that all wires are securely

connected to connector B.

4. Remove connector B from temperature control

module, and check continuity of overtemperature

switches A and B, thermocouples A and B, or FTS

by measuring resistance across the pins on the plug

end; see T

ABLE 1.

NOTE: Before doing the following checks, note which

zone (A, B, FTS, or all) has high fluid temperature.

5. Verify fluid temperature, using an external

temperature sensing device.

• If temperature is too high (sensor reading is

229°F [109°C] or above):

6. Check if thermocouples A and B are damaged, or

not contacting the heater element, page 43.

7. To test that temperature control module turns off

when equipment reaches temperature setpoint:

a. Set temperature setpoints far below displayed

temperature.

b. Turn zone on. If temperature rises steadily,

power board is failing.

c. Verify by swapping with another power module.

See Replacing Temperature Control

Assembly Modules, page 40.

d. If the swapped module does not fix the problem,

the power module is not the cause.

8. Verify continuity of heater elements with an

ohmmeter, see page 41.

E02: High zone current

1. Turn main power OFF .

2. Perform the Pressure Relief Procedure, page 25.

NOTE: Disconnect whip hose.

3. Disconnect hose connector (D) at Reactor.

4. Using an ohmmeter, check between the two

terminals of the connector (D). There should be no

continuity.

5. Exchange zone module with another one. Turn

zone on and check for error. If error disappears,

replace faulty module.

For hose zone: If error still occurs, perform

Transformer Primary Check and Transformer

Secondary Check starting on page 47.

NOTE: When there is a a high current error, the LED on

that zone’s module will turn red while the error is

displayed.

Table 1: Sensor Connector Continuity Checks

Pins Description Reading

1 & 2 OT switch A nearly 0 ohms

3 & 4 OT switch B nearly 0 ohms

5 & 6 Thermocouple A 4-6 ohms

8 & 9 Thermocouple B 4-6 ohms

11 & 12 FTS approximately 35 ohms

per 50 ft (15.2 m) of

hose, plus

approximately 10 ohms

for FTS

10 & 12 FTS open

Graco Reactor E-20 PH9030 — диагностика кодов управления температурой и проверка соединений [11/76]

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