Alpha Technologies CFR 1500, CFR 2000, CFR 2500, CFR 3000 - Manual (Page 47)

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4.1 Start-up and Test
1. Plug the CFR’s AC line cord into a wall receptacle or turn the AC Input circuit
breaker ON. The TEST LED and OUTPUT LOAD display LEDs will flash for a
few seconds to indicate the CFR is powering up. The LINE PRESENT LED will
then come ON to indicate the AC input line is OK and the CFR is running on AC
line power.
2. Switch the rear panel BATTERY circuit breaker ON to activate the battery circuit.
3. Test the UPS by unplugging the AC line cord from the wall receptacle or turn the
AC Circuit Breaker OFF. The front panel amber “LINE FAILURE” LED will light as
the UPS initiates LINE FAILURE operation.
4. Plug the AC LINE cord back into the wall receptacle or turn the AC circuit breaker
ON. The “LINE PRESENT” LED will come ON to indicate the presence of AC line
power. Within 20 seconds, the “LINE FAILURE” LED will shut OFF to indicate that
the UPS has resumed LINE PRESENT operation.
5. Once the UPS has been tested, switch the load ON, one piece of equipment at a
time, and observe the front panel “OUTPUT LOAD” display. As each additional
piece of equipment is switched ON, the LEDs will display the increased load up to
100%. If the “OVERLOAD” LED lights, decrease the load by switching equipment
OFF, one unit at a time, until the “OVERLOAD” LED goes OFF.
WARNING: DO NOT RUN THE UPS IN AN OVERLOADED CONDITION.
4. OPERATION
1 & 4
3
Fig. 15
Standard Interface Device showing start-up LEDs
5
1
40
“BATTERY PARAMETERS” provides UPS Battery Voltage, Charger Current, and
Charger Status information.
Voltage
Voltage indicates the average DC voltage of UPS batteries. When the UPS is running
in “LINE PRESENT” mode and the batteries are charged, the voltage will be approximately
27.6 VDC (equal to the charger’s “FLOAT” charge). When the UPS is running in “LINE
FAILURE” mode, the battery voltage will slowly decrease until the Battery Low Voltage
Cutout is reached (approximately 21.0 VDC). Once utility power is restored, after a
prolonged power outage, the battery voltage will slowly climb until the batteries are
recharged.
NOTE: If external batteries are connected, their voltage will be reflected as well.
Battery Current
When the UPS is running in “LINE PRESENT” mode, the average DC charger current
is displayed (i.e., 2.1 Amps). When the UPS is running in “INVERTER” mode the battery
charge current is zero (0).
Charger Status
When the UPS is in “LINE PRESENT” mode, the charger keeps the batteries charged,
indicated by “CHARGER STATUS ON”. When the UPS is in “LINE FAILURE” mode and
running on the batteries, the charger immediately switches OFF, indicated by the display
“CHARGER STATUS OFF”. Once utility power returns, or an alternative power source
(generator) is connected, the charger will switch ON and the DC current will slowly rise after
an initial
3 second “soft start” delay.
“USER PARAMETERS” allows you to set the information for automatic test,
output voltage shutdown, display unit identification, and to change the security
codes. Whenever one of the USER PARAMETER items is accessed, you are
prompted for a security code.
NOTE: The code (1111) is preset at the factory and can be changed by
entering the SET USER SECURITY CODE screen (menu item 58).
Unsolicited Alarm Messages
The CFR can transmit alarm messages (in ASCII format) to notify a status change
or a power problem. Once this feature is enabled, alarm messages are transmitted
automatically on the RS-232 port as soon as the status of the CFR changes. You can
connect a terminal to the CFR to monitor its status and log all power problems. Refer to
menu items 56 and 509-511 for a detailed description.
Automatic Output Shutdown
The output of the CFR can be turned off by sending a command via the RS-232
port using a computer or terminal. Refer to menu items 501-508 a for detailed
description (menu items 501-506 are intended for scheduled shutdown even when the
AC line is present; 507 and 508 items can be used to switch the inverter ON and OFF to
preserve the battery).
5. RS-232 TERMINAL COMMUNICATION
5
4
5.9 User Parameters
5.8 Battery Parameters