Powerware 9315 , , To Place the UPS in Normal Mode:

16 Powerware 9315 (200 kVA---300kVA) Opera tion
164201036 Rev.D 041500
The following describes the switches on the Control Panel (see Figure 7):
·The MODE switch is a two-position rotary switch that controls the manual
transfer of the UPS to and from Bypass mode. The MODE switch is used to:
--- Place the critical load in By pass mode when the UPS is operating in Normal
mode and the bypass source is within acceptable limits. If the transfer does
not occur within 2 seconds, an alarm sounds.
--- Prevent transfer to Normal mode when the UPS is in Bypass mode.
--- Sh u t d o w n t h e power processing unit (inverter and rectifier) of the UPS.
·The BATTERY switch is a two-position rotary switch that allows yo u to manually
shunt trip the battery breakers in remote cabinets.
·The circuit breaker (CB1) switch controls the operation of the rectifier and
inverter. If CB1 is on (closed), the rectifier turns on when the START switch is
activated and the proper voltage is at the inputterminals.
·The PUSH TO RESET pushbutton is describedin the “Resetting the UPS
System after Load Off” section of Chapter 12.
·The START switch activates the power controls on the Control Panel. The
START switch is center-biased (the key will rest only in the upright position). Its
operation is similar to that of an automobile ignition switch. After setting the
operator controls, you turn theSTART switch to the right momentarily t o
activate the controls. When you release it, it returns to the upright position.
Thefollowing sections describe how to operate these controlsto start, stop, or change
the operating mode of the UPS.
To Place the UPS in Normal Mode:
1. Close Input Power Feeder breaker
2. Be sure the Load Off PUSH TO RESET pushbutton is pressed in.
3. Turn t he BATTERY switch to NORMAL.
4. Turn t he MODE switch to NORMAL.
5. Move the CB1 switch to ON.
6. Turn t he START switch to the right momentarily.
The rectifier turns on, then the inverter turns on. When the inverter reaches full
voltage, it turns on and supplies power tothe critical load. It takes less than 1 minute
for the UPS to achieve Normal mode.
IfabypasssourceisavailablewhenyouturntheSTART switch on, the critical load is
immediately supplied by the bypass sourcein Bypass mode until the inverter turns on
and the UPS transfers to Normal mode. The status indicators on the Monitor Panel
indicate when the UPS is in Bypass m ode and Normal mode.
7. Close battery breaker(s).