86
8 FUNCTIONS
8.2 Function Details
Transmission cable voltage drop detection function
This function detects a voltage drop in the 24VDC external power supply, enabling the bridge module to detect a failure in the
24VDC external power supply or a wiring error.
Transmission cable voltage drop status
When the system is in the following status, a voltage drop in the 24VDC external power supply has been detected.
• The ALM LED flashes at 0.2 second intervals.
*1
• Transmission cable voltage drop error (RXn3) turns on.
• 00C8H is stored in Latest error code storage area (RWrn+16).
*1*2
• 0FFFH is stored in Latest error ID storage area (RWrn+17).
*1*2
• The AnyWireASLINK bit transmission stops.
*1 If multiple errors occur simultaneously, the latest error is displayed.
*2 This applies only when the CC-Link operation mode is Ver.2.00.
How to recover from the transmission cable voltage drop status
How to recover from the transmission cable voltage drop is as follows.
1.
Check the voltage of the 24VDC external power supply and replace the power supply or check the wiring, as necessary.
When the transmission cable voltage drop status is cleared, AnyWireASLINK bit transmission is resumed automatically.
If the status does not change, the transmission cable voltage drop has not been eliminated. Therefore, check the system
again.
The following status is maintained:
• ON state of transmission cable voltage drop error (RXn3)
• Flashing of the ALM LED
• Data in Latest error code storage area (RWrn+16) and Latest error ID storage area (RWrn+17)
*1
*1 If multiple errors occur simultaneously, the latest error is displayed.
2.
Power off and on the bridge module or turn on and off Error reset request flag (RY(n+1)A, RY(n+3)A, RY(n+5)A,
RY(n+7)A, RY(n+D)A).
The following status is resulted:
• Transmission cable voltage drop error (RXn3) turns off.
• The ALM LED turns off.
• The data in Latest error code storage area (RWrn+16) and Latest error ID storage area (RWrn+17) is cleared.
For the specifications of the 24VDC external power supply to the bridge module, refer to the following.
Содержание AnyWire NZ2AW1C2AL
Страница 1: ...CC Link AnyWireASLINK Bridge Module User s Manual NZ2AW1C2AL ...
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Страница 119: ...APPX Appendix 6 External Dimensions 117 A Appendix 6 External Dimensions 43 86 10 102 3 5 3 4 0 3 Unit mm ...
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