APC 990 User Manual
Overview: Display Symbols and Buttons
Symmetra MW with External Bypass Static Switch Operation Manual - 990-1377D-001
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Buttons
ON button: Press this button to switch ON the UPS or the External Bypass Static Switch.
OFF button: Press this button to switch OFF the UPS or the External Bypass Static Switch.
EMO (Emergency Module OFF) button: To be used in emergency situations only.
Pressing this button switches OFF all breakers, disabling AC/DC input and output in this section.
Be aware that this action may cut the supply to the load from the affected section.
Pressing this button switches OFF all breakers, disabling AC/DC input and output in this section.
Be aware that this action may cut the supply to the load from the affected section.
Breakers
Note: Only operate a breaker when the associated breaker lamp is on.
Q1
UPS input breaker
Q5
Static bypass input breaker
Q2
UPS output breaker
Q6
Static bypass output breaker (optional)
Q3
Manual bypass breaker
Q7
Battery breaker 1
Q4
System output breaker (optional)
Q8
Battery breaker 2