RUN/STOP Button Operation
Operation of the RUN/STOP button:
When the UPS is in BYPASS mode, the RUN button is dis-
1. To switch the UPS to In-Line operation, press the RUN
2. The RUN icon changes to an Hourglass for 3 seconds.
The control button is disabled while the hourglass is
The same delay occurs when switching from RUN to
3. After the hourglass icon clears the STOP icon is dis-
played. The UPS is in In-Line mode.
4. To put the UPS back into Bypass mode, press the STOP
button. The hourglass will display as in step 2, then the
button will display the RUN icon.
FIGURE 12.11: RUN/STOP BUTTON
4400 Series Installation and Operation Manual – 64527-008