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| 3/26/2008 12:23 PM | |
Joined: 9/27/2006 Last visit: 10/3/2024 Posts: 12283 Rating:
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Hello One2three; Here is a link to your Sitop manual: http://support.automation.siemens.com/WW/view/en/17698515 Here is what it says on the different signals it will show: Hope this helps, Daniel Chartier Signaling "Normal operation", i.e. the input voltage at the DC-UPS module is higher than the set cut-in threshold. The loads are being supplied by the line-side power supply. If a battery module isconnected, it is fully charged. In normal operation, the green LED (o.k.) is illuminated and relay contact X2.2 – X2.3 (o.k.) is closed. “>85% charge”, i.e. battery is loaded more than 85% (available rest capacity dependent upon aging). The second green LED (Bat>85%) is illuminated and relay contact X2.7 – X2.8 is closed. .(second green LED off and relay contact X2.7 – X2.8 open (de-energized position when unit is disconnected) means : Bat<85%, i.e. battery charge below 85%) "Floating operation", i.e. the input voltage is lower than the set cut-in threshold. The loads are being supplied by the battery module. In floating operation, the yellow LED (Bat) is illuminated and relay contact X2.1 – X2.2 (Bat) closed (de-energized position when unit is disconnected).Alarm signal "Battery not ready": When the "Battery not ready" signal is active, the red LED (Alarm) is illuminated and relay contact X2.4 – X2.5 (Alarm) closed (de-energized position whenunit is disconnected). Causes for the "battery not ready" state in normal operation are as follows: "OFF" operating state, no battery module connected, reversed polarity or defective battery (battery voltage < 18.5V) or open circuit between battery and UPS module. The interval for polling the operating states ON/OFF, reversed polariy, defective battery or no battery module connected, open circuit between battery and UPS module, and for activating the relevant signal output is 20 s during normal operation. After the end of the failure the signal remains till to the next polling. If the signal flashes in a 2s cycle, this indicates that the battery is defective, but still capable of floating operation. The specified buffering times cannot be kept in such cases. The battery module must be replaced. The "Alarm" signal in floating operation means that the battery voltage has dropped to <20.4V and automatic disconnection to protect the battery is imminent. When the battery has beendisconnected due to overload, short circuit, exhaustive discharge protection or buffering timeout, the red LED (Alarm) goes out, but relay contact X2.4 – X2.5 remains closed. Load rating of relaycontacts: 60V DC / 1A or 30V AC / 1A |
Last edited by: dchartier at: 3/26/2008 12:28 PM |
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