MYERS LV Series User manual

115107D- LV Metering
METERING/DISPLAY
MANUAL
175W - 750W SINGLE PHASE
Series LV
EMERGENCY LIGHTING CENTRAL INVERTER
Myers Emergency Power Systems
44 South Commerce Way, Bethlehem, PA 18017
1-800-526-5088 •[phone] •Fax: [phone]
Service: [phone]
www.myerseps.com

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Table of Contents
SECTION 1 ...........................................................................................................................................................2
TYPES OF METERING/DISPLAY PANELS ............................................................................................................2
INTERNAL METER PANEL (UL 924 & NFPA 101) .............................................................................2
HANDHELD METER PANEL (UL 924 & NFPA 101) ...........................................................................2
REMOTE METER PANEL (UL 924 & NFPA 101).................................................................................3
REMOTE METER PANEL with I/O BOARD or BACNET (UL 924 & NFPA 101)...........................3
SECTION 2 ...........................................................................................................................................................4
PANEL DISPLAY ..................................................................................................................................................4
Control Panel Keypads ...............................................................................................................................5
Meter Functions ...........................................................................................................................................5
System Status ..............................................................................................................................................6
Contact Status..............................................................................................................................................6
System Setup ...............................................................................................................................................6
I/O Setpoints ...............................................................................................................................................7
Normally Off Relay ....................................................................................................................................8
Normally off delay.....................................................................................................................................8
Time Clock...................................................................................................................................................8
Loadshed .....................................................................................................................................................8
Audible Alarm .............................................................................................................................................8
Log View ......................................................................................................................................................9
Maintenance................................................................................................................................................9
Data Logging.............................................................................................................................................10
Clear Mass Storage .................................................................................................................................10
Unit Info......................................................................................................................................................11
Alarms/Faults............................................................................................................................................11
Notes:..........................................................................................................................................................12

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SECTION 1
TYPES OF METERING/DISPLAY PANELS
INTERNAL METER PANEL (UL 924 & NFPA 101)
HANDHELD METER PANEL (UL 924 & NFPA 101)
Cable – Factory supplied
CAT5E Ethernet Cable, 6 feet long

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REMOTE METER PANEL (UL 924 & NFPA 101)
REMOTE METER PANEL WITH I/O BOARD OR BACNET (UL 924 & NFPA 101)
Cable – Customer supplied
Use CAT5E Ethernet Cable,
RJ45 Connectors
1000 feet maximum
Cable – Customer supplied
Use CAT5E Ethernet Cable,
RJ45 Connectors
1000 feet maximum
Remote Box Dimensions

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SECTION 2
PANEL DISPLAY
The Panel Display assembly consists of a 4 x 20 OLED display and a 4-button
keypad. The 4 buttons can navigate through all the menus by using the left and
right arrow keys, the ENTER and the ESCAPE.
To turn on the display hold down the ENTER key for 2-3 seconds and release when
the display becomes illuminated. After a period of 15 minutes with no key activity the
display will enter a sleep mode and requires a re-initialization cycle as described
previously.
When there are no alarms, the default menu will scroll between the
Identification/Date-Time screen and the metered values. To view the other menu
options from the default screen, press the ENTER key, and then press the left or the
right arrow key to go to the desired menu.
The Menu’s available are Meter, System Status, System Setup, Log View,
Maintenance, Unit Info, and Alarms/Faults.
Once the desired menu has been reached, press the ENTER key to gain access to
this menu. Once into the menu, use the left or right arrow key to scroll to different
functions within the menu. Press the ENTER key again to gain access to the desire
function. To exit, press the ESCAPE key until the desired level has been reached.
(See figure 2.1)
Figure 2.1 Panel Display

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Control Panel Keypads
Table 2.1 Keypad Functions
Key Name
Description
Enter
Pressing this key will drop one tier deeper into the menu structure.
Escape
Pressing this key will retract one tier less in the menu structure.
[ ◄ ]
This key functions as Left scroll key moving horizontally across one tier.
[ ► ]
This key functions as Right scroll key moving horizontally across one tier.
*Continuing to depress escape will retract the display and eventually reach the default
screen.
Meter Functions
To get to the meter functions from the default screen, press the ENTER key, then
press the ENTER key again. Use left or the right arrow key to view the meter
function desired.
Table 2.2 Meter Functions
Function Description
Input voltage
Measures the RMS AC Input Voltage to the Inverter.
Input Current
Measures the RMS AC Input Current to the Inverter.
Input Frequency
Measures the AC Input Frequency to the Inverter.
Output Voltage
Measures the RMS AC Output Voltage from the Inverter.
Output Current
Measures the RMS AC Output Current from the Inverter. If there are
Normally Off loads connected, it will read the sum of Normally On and
Normally Off outputs.
Output Power
(VA)
Measures the Output Power (VA) from the Inverter.
Battery Voltage
Measures the DC Battery Voltage.
Battery Current
Measures the DC Battery Current. When in charge mode, the current will be
positive. When in Inverter mode, the current will be negative.
Battery
Temperature
Measures temperature at the battery.
Battery Power
Measures the Battery Power (Watts) to the Inverter.
Internal Ambient
Temperature
Measures the ambient temperature inside the system.
Heatsink
Temperature
Measures the temperature at the heatsink.
UPS Events
Indicates the total Events the system has on the inverter.
UPS Time
Indicates the total minutes the system has run on inverter.
System Days
Indicates the total days the system has been on-line.

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System Status
The system status will indicate the operating mode of the system. The table listed
below describes the modes of operation the system will display.
Table 2.3 System Status Modes
Function Description
On Utility
Indicates the utility is present and in tolerance but not charging.
Charging Bulk
The batteries are being charged but the float or absorption voltage has not
been reached.
Charging
Absorption
The batteries are being charged at the absorption voltage but the charging
current is not below 1A.
Charging Float
The battery charger is float charging the battery.
Manual Test
Indicated when the self test push button is depressed or the self test is
activated from the menu.
Monthly Test
A monthly test is in progress.
Yearly Test
A yearly test is in progress.
On Battery
The unit is on battery due to an out of tolerance condition. Does not indicate
for test modes.
Load Reduction
Calibration
Indicated when a load reduction calibration is activated.
Standby
Indicated if the utility is present but not in tolerance. The error can be
voltage, frequency, or phase.
Normally Off
Active
Indicated if the normally of timer relay is activated after the system returns
from inverter.
Shutdown
Indicated if the battery voltage reaches LVD (1.75v/cell) and the system is
waiting for the disconnect timer to time out.
Contact Status
The contact status tier is only available with the purchase of the I/O option. This
menu will display each available input and output for the I/O option, their function,
their indicator, and if that input or output is in an active or inactive state. See the
115159 IO option manual for further information on this option.
To enter to the Contact Status menu from the default screen, press the ENTER key,
scroll to the Contact Status menu using the left or right arrow key, then press the
ENTER key.
System Setup
The system setup tier allows the user to set parameters and customize settings that
can indicate out of tolerance conditions. To get to the System Setup menu from the
default screen, press the ENTER key, scroll to the System Setup menu using the left
or right arrow key, then press the ENTER key again.
Date
The parameters are Month, Day, and Year.
To change any of the parameters, use the left or right arrow key depending if you
want to increase or decrease. Once the parameter is correct, press the ENTER key
and the next parameter can be changed.

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Time
The parameters are Hour and Minute. The 24-hour standard is used so 2:00 PM
would be 14 hours. Use the left or right arrow key to change the parameters and
the ENTER key to scroll between parameters.
Set points
This tier contains settings that the user can use to activate the summary alarm
creating a warning condition. When an I/O option is installed in the system, these
settings are not available, and the summary alarm will return to default settings. The
setting will not have a direct effect on the operation of the UPS. Set points include
Battery Low & High, Battery Temp Low & High, Ambient Temp Low & High, Input
Voltage Low & High, Output Voltage Low & High, and On Inverter Timer. Use the left
or right arrow key to turn on or off this alarm. When the alarm is turned on, a number
will appear. To change the number,
Press the ENTER key and then use the left or right arrow key. Once the desired
number is reached, press the ENTER key and this will return to the top-level menu.
Table 2.4 Summary Alarm Codes
Type User Settings
Input Frequency Low
Enabled / Disabled
Input Frequency High
Enabled / Disabled
Input Voltage Low
Enabled / Disabled
Input Voltage High
Enabled / Disabled
Battery Voltage Low
Enabled / Disabled
Battery Voltage High
Enabled / Disabled
Battery Temperature Low
Enabled / Disabled
Battery Temperature High
Enabled / Disabled
Ambient Temperature Low
Enabled / Disabled
Ambient Temperature High
Enabled / Disabled
On Inverter Time
Enabled / Disabled
Charger Fault
None User / Fixed Setting
Failed Monthly Test
None User / Fixed Setting
Failed Yearly Test
None User / Fixed Setting
Load Reduction Fault
None User / Fixed Setting
Overload Fault
None User / Fixed Setting
Output Voltage Low
None User / Fixed Setting
Output Voltage High
None User / Fixed Setting
Input Fuse Failed
None User / Fixed Setting
Heatsink Over Temperature
None User / Fixed Setting
Battery Low Voltage
Disconnect
None User / Fixed Setting
I/O Setpoints
This tier is only available in an LV unit with the I/O option installed. See the 115159
I/O option manual for further information on this option.

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Normally Off Relay
With default settings, the normally off relay will activate whenever the unit goes into
emergency backup. The options available in this tier of the menu allow for
customization of the normally off relay. Use the left or right arrow keys to navigate
these settings, and press the ENTER key to select one of the normally off relay
settings. Normally off relay functions included are normally off delay, time clock
weekday, time clock weekend, and loadshed.
Normally off delay
The normally off delay function allows the user to delay the turn on time of the
normally off relay, as well as forcing the normally off relay to stay on for a
period of time after the unit returns from emergency backup. Use the left or
right arrow keys to select enable or disable, and then press ENTER. When
enabling, the user will be prompted to set the delay on time and the delay off
time. Both must be set, by using the left or right arrow keys and pressing
ENTER, in order to save any changes.
Time Clock
The time clock weekday and weekend functions allow the user to activate the
normally off relay between a range of time each day. This function is split into
two functions to allow a different time range for weekdays and weekends. The
normally off relay will be activated between the start and stop times once
enabled. Use the left or right arrow keys to select enable or disable, and then
press ENTER. When enabling, the user will be prompted to set the start time
and the stop time. Use the left or right arrow keys to change the times, and
the ENTER key to set the selected time. Both the start time and stop time must
be set in order to save any changes.
Loadshed
The loadshed function deactivates the normally off relay after the unit has been
on emergency backup for a period of time. This feature can extend the
emergency run time of the system by removing unneeded loads. Use the left or
right arrow keys to select enable or disable, and then press ENTER. When
enabling, the user will be prompted to set the amount of time on emergency
backup before the loadshed function deactivates the normally off relay. If
enabled, and the system exceeds the specified time while on emergency
backup, the normally off relay will be deactivated regardless of other normally
off functions.
Audible Alarm
This tier provides the option to disable the audible alarm when the unit is in a fault
condition. This alarm will still function when the display is powered off, and will also
make an audible noise during power up of the display. When the unit is in an alarm
state, the audible alarm will repeat a 1 second on, 1 second off pattern. When the
unit is in emergency backup, the audible alarm will repeat a 1 second on, 4 second
off pattern.
Normally Off Timer
The normally off timer will hold on the normally off relay, providing power to the
normally off load until the specified time has elapsed.

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Log View
Test Log
To get to the Test log menu from the default screen, press the ENTER key, scroll to
the Log View menu using the left or right arrow key, then press the ENTER key
again, scroll to the Test Log menu and press the ENTER key again. Use the left or
right arrow key to view the test desired, and the press the ENTER key for more
information.
The Test log indicates the Date, Time and Duration of the test. It also indicates if it
was a monthly or yearly test, and it records the output voltage, the output current, the
ambient temperature, and if there were any alarm conditions.
The numbers of tests that can be captured in the test log are 25. The format is first
in is first out so; test number one is the most recent test.
Alarm/Fault Log
To get to the Event log menu from the default screen, press the ENTER key, scroll to
the Event log menu using the left or right arrow key, then press the ENTER key
again. Use the left or right arrow key to view the event desired, and then press the
ENTER key for more information.
The Alarm/Fault log will store tree critical parameter relative to the alarm that
occurred. In some instances a description is used to describe what occurred. The
Event log captures data every time there is a transfer from utility power to battery
power. The numbers of alarms/faults that can be captured in the log are 75. The
format is first in is first out so; event number one is the most recent event.
Maintenance
To get to the Maintenance menu from the default screen, press the ENTER key,
scroll to the Event log menu using the left or right arrow key, then press the ENTER
key again. The maintenance menu is password protected.
**** The password is left arrow, right arrow, left arrow, and right arrow. ****
The following functions can be performed from the maintenance menu:
Self Test
Initiates a manual test and transfers the inverter to battery power. The time is
programmable prior to execution of the test.
Monthly Test
Programs the Date, Time (Hours and Minutes), and duration to execute the monthly
test. The monthly test will not be executed the month that the yearly test is
executed. Use the left or right arrow key to change the parameters and the ENTER
key to scroll between parameters.
Yearly Test
Programs the Date, Time (Hours and Minutes), and duration to execute the yearly
test. Use the left or right arrow key to change the parameters and the ENTER key
to scroll between parameters.