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COMMUNICATIONS PORTS
(RS232 and USB)
The RS232 communication port is a standard DB9 female with both RS232
and simulated contact closure capability. The UPS will poll the port and acti-
vate the port for RS232 or contact closure in accordance with the type of
cable it finds connected to the port. To change the port configuration requires
the unit be turned off and restarted with the desired cable connected. The
pinout for the port is depicted per the chart below:
Pin 1: Simulated contact closure Low Battery Warning, NO
Pin 2: /TXD
Pin 3: /RXD and receive UPS shutdown command (connect to pin 9 for 4-
seconds. The shutdown command is only active in the battery mode)
Pin 4: Not Used
Pin 5: Ground
Pin 6: Not Used
Pin 7: Not Used
Pin 8: Simulated contact closure AC fail, NO
Pin 9: Atx Signal (high level: +12V +/-2V, low level: -15V +/- -2V)
USER INVOKED BATTERY TEST
The user invoked battery 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 until the alarm sounds four beeps,
and then release. The UPS will perform a ten-second battery test to measure
the battery’s capability to support the connected load. During the battery test,
the UPS will switch to the battery mode and the On-Battery icon will illuminate
and the audible alarm will sound. If the UPS fails a battery test, one of the
icons will remain illuminated indicating the type of problem.
NOTE:
The UPS
will automatically perform a self test on start-up.
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 Power Monitoring Software or the SNMP card.
NOTE:
The output segment labeled Load 3 does not support the "Load Shed-
ding Function".
TURNING THE UNIT ON/OFF
On / Off / Test Button
When the UPS is connected to an AC source and there is an acceptable AC volt-
age present;
Press and release the On/Off/Test button during the audible alarm's
first beep to turn the UPS On. Once the UPS successfully passes the twenty-
second self test the load will be powered.
When the UPS is in the AC normal mode; Press and release the On/Off/Test
button during the audible alarm's first beep to turn the UPS Off. The UPS will
continue to charge the batteries whenever it is plugged into a wall outlet and
there is acceptable AC voltage present.
USB PORT
The USB protocol is HID. The HID USB driver is the standard for the Windows
OS. Simply plug the USB cable into the UPS and the computer then follow the
prompts on the screen.
NOTE:
When using the UPS's USB port with
Windows XP, 7,8 or 10 the Power Options in the Control Panel may need
to be configured.
EMERGENCY POWER OFF (EPo) FUNCTION
Connect one end of the RJ11 cable to the REPO port and the other end of the
RJ11 cable to the EPO switch. In the AC or the Battery mode short pin4 to
pin5 for approximately 0.5-seconds to shutdown the UPS. The UPS must be
turned off and then back on again to restart the UPS. The LCD will display
EPo for this function.
Block Diagram of the Basic Wiring and Internal Circuit Configuration
ECONOMY MODE (ECo) FUNCTION
The UPS must be connected to utility power and there must be an acceptable
AC voltage present.
1. Press and release the On/Off/Test button during the audible alarm's first
beep to turn the UPS On. The UPS will start-up and perform a self test for
approximately 20-seconds.
2. The Economy mode option must be Enabled through the SNMP card or the
Power Monitoring software. Once the Economy mode has been Enabled
the LCD will display ECo.
3. Turn on the connected equipment one at a time.
OPTION SLOT
The option slot on the rear panel of the UPS is for option cards. Contact your
local dealer or visit our Web site at www.minutemanups.com for the available
option cards for this series.
