SMARTZONE UPS USER MANUAL
10
The UPS is now in the Battery state; the UPS will continue to provide power to the load
for a limited time (runtime of the battery backup system connected to the UPS for the
percentage of load connected). Refer to
Appendix C: State Transitions Based on
for state transitions based on input/output events.
If an internal or an external output event occurs while operating in CF mode, the output
relay will open and the output will shut down, AC power to the load will be lost.
Generator Mode
Double Conversion
The UPS may be set to Generator mode to enable the UPS to have a wider input
frequency range (40Hz to 70Hz). Setting the double conversion UPS to Generator mode
requires the UPS unit to be derated. The 1-3kVA double conversion UPS units in
Generator mode are derated to 75% of the maximum output but will maintain a 50Hz or
60Hz output frequency over the full input frequency range.
Note:
The Generator mode is not saved on the 1-3kVA UPS units; when the 1-3kVA
UPS unit is powered OFF and restarted, the units will restart in Normal mode.
If the input power is lost or has input anomalies outside of the operating range of the
UPS while the UPS is operating in Generator mode:
The batteries will stop charging (input relay will open)
The bypass relay will remain opened
The output relay will remain closed and the battery will start providing the DC
power to the DC to AC inverter, continuing to provide uninterrupted AC power to
the load.
The UPS is now in the Battery state; the UPS will continue to provide power to the load
for a limited time (runtime of the battery backup system connected to the UPS for the
percentage of load connected).
If an internal or an external output event occurs while operating in Generator mode, the
input and output relays open and the bypass relay closes (assuming the input is not
outside of the input bypass range), continuing to provide unconditioned AC power to the
load.
The UPS is now in the Bypass state with no frequency or voltage conditioning. Output
frequency and voltage will equal input frequency and voltage. Refer to
State Transitions Based on External Events
for state transitions based on