11 TROUBLESHOOTING
Error Code List (Continued)
Error Code |
| Error Messages | Common | Individual | LED Status | Operating | Diagnostic Timing |
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(SD0) | 1 |
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| (SD5 to 15) 1 | (SD16 to 26) 1 | RUN | ERROR | CPU |
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| At power ON/At reset/ |
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| When intelligent function module |
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| Stop/ | is accessed. |
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1401 |
| SP. UNIT DOWN | Unit/module No. | Off/On | Flicker/On |
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| 3 | At power ON/At reset |
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| When an intelligent function |
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| module access instruction is |
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1402 |
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| Program error location |
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| SP. UNIT DOWN | Unit/module No. | Off/On | Flicker/On | Stop/ | During execution of FROM/TO |
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| 6 | instruction set. |
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1403 |
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| When an END instruction is |
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1411 |
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| At power ON/At reset |
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| Unit/module No. | Program error location | Off | Flicker | Stop |
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1412 |
| During execution of FROM/TO |
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1413 |
| off | Flicker | Stop | Always |
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| Unit/module No. | Off | Flicker | Stop | When an END instruction is |
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1414 |
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| off | Flicker | Stop | When an END instruction is |
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1415 |
| Base No. |
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| Off | Flicker | Stop | executed |
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1416 |
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| At power ON/At reset |
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1421 |
| SYS. UNIT DOWN 3 | off | Flicker | Stop | Always |
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1500 |
| AC DOWN |
| On | Off | Continue | Always |
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1510 |
| DUAL DC DOWN | on | on | Continue | Always |
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1520 |
| DC DOWN 5V | 5 | off | Flicker | Stop | Always |
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1530 |
| DC DOWN 24V | 3 | on | on | Continue | Always |
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1600 |
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| ON | On |
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| BATTERY ERROR | Drive Name |
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| Continue | Always |
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1601 |
| BAT.ALM LED On |
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1602 |
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| Stop/ | When an END instruction is |
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2000 |
| UNIT VERIFY ERR. | Unit/module No. | Off/On | Flicker/On | Continue |
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1 Characters in parentheses ( ) indicate the special register numbers where individual information is being stored.
2 The CPU module operation status when an error occurs can be set at the parameters. (LED display will change accordingly.)
3 This can only be detected in redundant systems. Detection is possible in either the control system or the standby system.
4 This can only be detected in the redundant system control system.
5 This can be detected in either a standalone system or a redundant system. However, in a redundant system it can only be detected in the control system. 
6 Stop/continue operation is selectable for each module by setting parameters.
11 - 21 | 11 - 21 |