FEC DSP1500 (SAN3) - Manual (Page 6)

enFORCE Operation Manual
PAGE 8 - 6
Chapter 8: Troubleshooting
8.4 Preamplifier Errors [ A3_* ]
• Code A3_0 - PREAMPLIFIER / TOOL ID CHECKSUM ERROR
Communication data checksum error between the load cell preamplifier and the SAN Unit.
Data is not reliable due to data error.
CAUSE:
1. If the controller or the load cell cable is located in an electric or magnetic noise field.
2. When the load cell, load cell cable or the controller malfunctions.
RECOVERY:
1. Verify that the cable or controller are not located near any high voltage transient power
sources. Relocate as required and reinitialize the system.
2. Exchange load cell cable, tool and/or controller with known working units. Reinitialize the
system after each exchange, and make note of any change in the location of the abnormal.
3. Replace the defective component.
• Code A3_1 - PREAMPLIFIER / TOOL TYPE ERROR
The connected tool type does not match the tool type programmed into the controller. This error
may occur in the multi-tool type application or when controllers are replaced and not
reprogrammed with the correct configuration.
RECOVERY:
1. Verify the tool type name from the tool identification tag
2. Compare the tool tag name with the setup value located on Data Display (see Page 6-24)
3. Program proper tool number into SAN Unit or change tool to proper tool.
• Code A3_2 - STARTED WITHOUT TOOL CONNECTED
The start signal was applied while a TOOL IS NOT CONNECTED abnormal condition existed.
RECOVERY:
1. Interlock the PLC circuit to disable the start signal during an existing abnormal condition.
2. Follow the TOOL IS NOT CONNECTED (Code 3-3) abnormal help procedure.
• Code A3_3 - PREAMPLIFIER / TOOL IS NOT CONNECTED
Communications error between the load cell preamplifier and the controller.
CAUSE:
1. The load cell cable is not connected
2. If the controller or the load cell cable is located in an electric or magnetic noise field.
3. When the load cell, load cell cable or the controller malfunctions.
RECOVERY:
1. Verify that the load cell cable is connected
2. Verify that the cable or controller are not located near any high voltage transient power
sources. Relocate as required and reinitialize the system.
3. Exchange load cell cable, tool and/or controller with known working units. Reinitialize the
system after each exchange, and make note of any change in the location of the abnormal.
4. Replace the defective component.