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NOTE:
The input circuit breaker MUST be in the on position for the 208V models.
When a blackout, brownout, or an overvoltage condition occurs; the UPS will transfer
to the battery mode, the On-Battery icon will illuminate, and the audible alarm will
sound once every ten seconds indicating that the commercial power is lost or
unacceptable. When the commercial power returns or is at an acceptable level, the
UPS will automatically transfer back to the AC normal mode and start recharging the
batteries. During an extended outage when there is approximately two minutes of
backup time remaining the audible alarm will sound twice every five seconds. This
Low Battery Warning is letting the user know that they should save all open files and
turn off their computer. When the batteries reach the predetermined level, the UPS
will automatically shutdown protecting the batteries from over discharging. Once the
commercial power returns the UPS will automatically restart, providing safe usable
power to the connected equipment and start recharging the batteries.
TURNING THE UPS ON / OFF
ON / OFF / TEST BUTTON
Press and release the On/Off/Test Button after one beep to turn the UPS on and
supply power to the load.
NOTE:
The input circuit breaker on the rear panel
MUST be on for the 208V models. The load is immediately powered while the UPS
runs a five second self-test. Press and release the On/Off/Test Button after one
beep to turn the UPS off.
NOTE:
Turn the input circuit breaker (on the rear panel)
off for the 208V models. The UPS will continue to charge the batteries whenever it
is plugged into a wall outlet and there is acceptable AC voltage present.
NOTE:
The input circuit breaker (on the rear panel) MUST be on for the 208V models.
SELF-TEST
The self-test feature is useful to verify the correct operation of the UPS and the
condition of the batteries. With the UPS in the AC normal mode, press and hold the
On/Off/Test Button for four beeps, then release the button. The UPS will perform a
ten second self-test. During the self-test, the UPS will switch to the battery mode
and the On-Battery icon will illuminate and the audible alarm will sound. The UPS
will automatically perform a five second inverter test on start-up to verify the correct
operation of the UPS and the condition of the batteries. If the UPS fails a self-test,
there will be an error message on the LCD screen indicating the type of problem.
ALARM SILENCER BUTTON
When the UPS is operating in battery mode, the audible alarm can be silenced.
Press the Enter button on the front panel for three seconds. Once the UPS reaches a
Low Battery Warning alarm the audible alarm will turn back on and cannot be
silenced. The UPS audible alarm will be reset to default once the utility power returns.
The alarm cannot be silenced during a general fault alarm.
SERVICE MODE
The UPS has a Service mode function activated through the LCD screen. The
Service mode items are:
Output Voltage Adjustment
Load Shedding Function
Password Setup
Input Voltage Sensitivity Adjustment
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INVERTER (ON-BATTERY) OUTPUT VOLTAGE ADJUSTMENT
The Inverter (On-Battery) output voltage setting can be either 120VAC (208VAC)
default or 125VAC (240VAC). Changing the Inverter (On-Battery) output voltage to
125VAC will also change the Buck set point. Changing the Inverter (On-Battery)
output voltage to 240VAC, will also change the Brownout, Boost, Buck, and
Overvoltage set points. The UPS must be in the off position and connected to the
AC outlet. Use the scroll buttons on the LCD screen scroll to the Service Mode
screen and then press the Enter key. Then scroll to the Output Voltage Setting
screen and press the Enter Key. Then scroll to the desired output voltage setting
and press the Enter Key. Then press the Escape key to exit the Configuration
screen. Now the UPS is ready for Normal operation. Press the On/Off/Test button
to turn the UPS on.
LOAD SHEDDING FUNCTION
The output receptacles are electrically wired into two segments to support the "Load
Shedding Function" (Labeled Load 1 & Load 2). The user can control the two
segments individually or both at the same time. The Load Shedding Function is
controllable by the LCD screen (look under the Service Mode screen), the Power
Monitoring Software or the SNMP card.
NOTE:
The output segment labeled Load
3 does not support the "Load Shedding Function" it is Always ON.
PASSWORD SETUP
Changing the password: Enter the old password first and then hit the enter key. Enter
the new password and then hit the enter key to save the changes.
I
NPUT VOLTAGE SENSITIVITY ADJUSTMENT
The input voltage sensitivity can be adjusted through the LCD screen. The when
the input waveform distortion is causing the UPS to transfer to the Battery mode too
often, adjusting the sensitivity will allow the UPS to remain in the AC mode without
depleting the battery reserves. The following chart shows the adjustments for Level
1 and Level 2.
Mode
Level 1
Level 2
Brownout Transfer Point (120V model)
76VAC +2 / -4V
74VAC +2 / -4V
Brownout Reset Point (120V model)
80VAC ±4V
78VAC ±4V
Brownout Transfer Point (208V model)
138VAC ±4V
135VAC ±4V
Brownout Reset Point (208V model)
148VAC ±4V
145VAC ±4V
Brownout Transfer Point (240V model)
172VAC ±4V
168VAC ±4V
Brownout Reset Point (240V model)
182VAC ±4V
178VAC ±4V
Input Frequency Range (all models)
60Hz: 53.4~66.6Hz
50Hz: 43.5~56.5Hz
60Hz: 52.8~67.2Hz
50Hz: 43.0~57.0Hz
BATTERY AGING COEFFICIENT
Use the battery install date and periodic monitoring of the batteries to get early
warning alarms for battery replacement. After replacing the batteries reset the
Battery Aging Coefficient through the LCD screen.
OPTION SLOT
The option slot on the rear panel of the UPS is for option cards. Contact your local
dealer for the available option cards or visit our web site at www.minutemanups.com.
