The 15305-AC-230V power module may experience instability issues when used in conjunction with some UPS brands, causing the 15305 unit to reset. When switching is performed between normal/emergency or emergency/normal power, some UPS brands experience substantial voltage transients.
This issue may be encountered when an ONS 15305 is configured for redundant power operation, where the system is powered with two internal AC-power modules, where both modules are connected to a UPS, or one module is connected to a UPS and the other is connected directly to the main power. In this configuration, after the modules are powered-on, the node begins to repeatedly reset (LEDs flashing). Switching to non-redundant operation with one AC or operating in a redundant configuration with two AC/DC power modules connected to the UPS source will correct the issue. This issue is not seen in non-redundant configurations.
Customers using the redundant AC power supply option in the 15305, with both modules connected to a UPS or one module connected to a UPS and the other connected directly to the main power, may experience reset issues.
The ONS 15305 may start to reset whenever an ONS 15305 unit is powered with two internal AC-power modules, with both modules connected to a UPS or one module connected to a UPS and the other connected directly to the main power.
If the system will not be configured for redundant power operation, or has been so configured and is operating as expected, then is it not necessary to replace the AC power modules.
If your system is configured for redundant operation, and you are experiencing this issue, please contact your account team.
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