UPS Stop Signal Operation
When the UPS stop signal is sent to the UPS through pin 2 and 3 of the external contact interface, it is possible to automatically reset the following operating systems (OS), which can automatically implement the shutdown function and restart the operation:
Applicable OS: Windows NT, IBM OS/2 LAN server, LANtastic
When the power fails, the OS receives the power failure signal from the UPS and starts the shutdown process. At the end of the OS shutdown process, the OS sends a stop signal to the UPS, and the UPS stops. When the power recovers, the UPS automatically restarts the OS within 10 minutes after the recovery from power failure.
If the line power recovers while the OS is in the shutdown process, the OS continues the shutdown process, and signals the UPS to stop. The UPS temporarily cuts off the output (10 - 20 seconds) and then restarts the OS. In this case the UPS cuts off output even with normal input power.
If the OS sends a stop signal to the UPS 10 or more minutes after recovery from a power failure, the UPS will ignore the signal and continue normal operation.
Connect only the UPS stop signal to the external contact interface for automatic processing so that the UPS output will not be turned off by mistake.
If the computer is started/restarted within 10 minutes after the recovery from a power failure, the power supply may be reset while the computer is restarting.
10 minutes
UPS MODE normal
power failure
backup
normal
os nORMAL
os shutdown process
os shutdown
ups stop signal from os
ups output voltage
checking time
continues output
temporarily cuts off
the output for 10 to 20 seconds
1600EP Series Instruction Manual | 13 |
