Rice-lake Combination System - Precision Loads PL9710 Indica User Manual download pdf (Page 19)

PL9710 Installation Manual - Troubleshooting 15

8.0 Troubleshooting

Troubleshooting is a systematic process of testing, identifying, and eliminating areas of the weighing system that

are causing problems or malfunctions. The

PL9710 is designed to aid in troubleshooting by providing error codes

which identify problems. Many of the error codes will show either channel 1, the truck channel, or channel 2, the

trailer channel, whichever is applicable.

The PL9710 system has two wires going from each transmitter to their respective load cells. One wire has a red

band next to the load cell connector and is called the red side and the plain black wire, to the other load cell, is

called the black side. The

PL9710 will sometimes refer to the red side or the black side in the error messages.

An effective and easy troubleshooting method is called substitution. For example, if the error message says the red

side is defective, swap the red and black wires at the load cells. If the error message remains the same, then the

trouble is with the wire. If the message changes to say the black side is defective, then the load cell is the problem.

The same idea can be used with the channel 1 and channel 2 wires at the back of the indicator.

The weight display will show Er CH1 if there is a problem with channel 1 or, if channel 2 is not working, Er CH2

will be displayed.

Additional details to aid in troubleshooting will be shown in the information display window.

The following sections will show how the error codes are displayed, list the possible causes, and some

troubleshooting hints.

Ch.1 Red side defective

The red-banded wire may be damaged between the

load cell and the channel 1 transmitter.

• The load cell connected to the red-banded wire of

channel 1 may be defective.

• Swap the two load-cell cables. If the message is the

same, the red-banded wire is damaged, possibly

pinched or cut. If the message changes to read the

black side is defective, then the load cell is the

problem.

Ch.1 Blk side defective

The black wire may be damaged between the load cell

and the channel 1 transmitter.

• The load cell connected to the black wire of channel

1 may be defective.

• Swap the two load-cell cables. If the message is the

same, the black wire is damaged, possibly pinched

or cut. If the message changes to say the red side is

defective, then the load cell is the problem.

Ch.2 Red side defective

The red-banded wire may be damaged between the

load cell and the channel 2 transmitter.

• The load cell connected to the red-banded wire of

channel 2 may be defective.

• Swap the two load-cell cables. If the message is the

same, the red-banded wire is damaged, possibly

pinched or cut. If the message changes to read the

black side is defective, then the load cell is the

problem.

Ch.2 Blk side defective

The black wire may be damaged between the load cell

and the channel 2 transmitter.

• The load cell connected to the black wire of channel

2 may be defective.

• Swap the two load-cell cables. If the message is the

same, the black wire is damaged, possibly pinched

or cut. If the message changes to say the red side is

defective, then the load cell is the problem.

Ch.1 not connected

Channel 1 is not connected to its transmitter.

• The channel 1 wire may have been disconnected at

the back of the indicator.

• The channel 1 wire may be damaged between the

channel 1 transmitter and the indicator. Disconnect

the channel 1 wires from the indicator. Assuming

channel 2 is working, connect the channel 2 wires to

the channel 1 terminals. If the message stays the

same, the indicator is defective. If the message goes

away and channel 1 works again, then the wire is

the problem. Check for a cut wire or a connector

unplugged.

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Rice-lake Combination System - Precision Loads PL9710 Indica User Manual Page 19

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