AltaPail II Bulk Melters Product Manual - 第150页

Troubleshooting 9-3 Part 1121836_03 E 11/2014 Nordson Corporation System Alerts Table 9- 2 System Aler ts Screen Message Affect on Melter Cause Co rrective Action(s) Failed motor boar d The melter continues to wo rk, but…

Troubleshooting

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Touch Screen Alerts and Faults

The Nordson AltaBlue Touch Adhesive melter diagnoses many alert and

fault conditions that may occur during operation. An “alert” condition is a

situation in which a potential problem may be occurring with the melter,

pump, applicator or hose. The melter will operate under an “alert” condition

unless the problem goes unresolved, at which point the melter will go into a

“fault” condition, during which the melter will shut down until the problem is

resolved.

Refer to the appropriate table for more information.

About Touch Screen Messages

Pump and Zone Alerts/Faults

Table 9-1 Pump and Zone Alerts/Faults

Screen Message Affect on Melter Cause Corrective Action(s)

Internal or External

Temperature for

[ZoneName] has

dropped below

defined setpoint

threshold

Alert

condition

issue has been

detected. The

melter continues to

operate normally.

Fault condition - if

the issue is not

resolved within 2

minutes of the alert

message, the

master pump and

heaters are switched

off. Melter stops

functioning

The actual temperature of the

component has dropped below

the set temperature limit

Check for conditions that may

cause a drop in ambient

temperature or replace the

component.

Internal or External

Temperature for

[ZoneName] has

risen above defined

setpoint threshold

The actual temperature of the

component has risen above the

set temperature limit

Check for conditions that may

cause an increase in ambient

temperature or replace the

component.

Internal or External

Short RTD on

[ZoneName]

The

RTD

for

the

component

indicated has failed or the

component was disconnected

from the melter.

Check

the

connections,

replace the RTD

Internal or External

Open RTD on

[ZoneName]

Issue with a pump

The melter may not

continue to work.

Refer to Troubleshooting Pumps later in this section for more

information

Troubleshooting

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System Alerts

Table 9-2 System Alerts

Screen Message Affect on Melter Cause Corrective Action(s)

Failed motor board

The

melter

continues to work,

but some functions

may not be

available. Melter

requires servicing.

Communication failure between

CPU and the motor board

Replace motor board

NVRAM test failure

Internal RAM failure Replace CPU

Troubleshooting

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System Faults

Table 9-3 System Faults

Screen Message Affect on Melter Cause Corrective Action(s)

Brownout

Master

pump

and

heaters are switched

off. Melter stops

functioning

Plant power dipped and came

back up

Typically nothing to address,

unless the system does not

operate properly, or various

messages appear. Cold

Stop/Start the melter

Analog-to-Digital

Failure

RTD analog-to-digital converter

failed

Replace main board or CPU

Analog-to-Digital

Failure Calibration

Failed hose or applicator

RTD analog-to-digital converter

could not be calibrated

(grounded RTD in system)

Replace hose or applicator.

Note: Set setpoint to zero to

avoid fault.

Replace main board or ribbon

cable, or CPU

Expansion Board

Connection Failure

Communication failure between

expansion board and main board

Check the ribbon cable

connections between the

expansion board and the main

board.

Expansion Board

Failure

Replace the expansion board.

User Interface Failed

to Load

Reload SD card info

Replace SD card

Replace CPU

Main Board Failure

Replace the main board

RAM Failure

Replace CPU

Motor

Communication

Failure

Refer to “Motor Drive Faults“ later

in this section for more

information

Motor Thermostat

Failure

Motor thermostat is open Replace thermostat

Platen Thermostat

Failure

Platen thermostat is open Replace thermostat, J7 harness,

or main board

Runaway fault on

[ZoneName]

Temperature continues to rise

beyond set point.

Replace Hose/applicator cordset

Replace main board