3
1.2
The CFR Advantage
, continued
COMMUNICATIONS AND INTELLIGENCE
Alpha's interchangeable Standard Interface Device and Intelligent Interface
Device allows your CFR to become an active part of your communications network
providing you with a variety of interface options.
SELF-TEST CAPABILITIES
The CFR has a built-in, self-test function that checks all critical areas of
the UPS, including the batteries, to ensure optimum performance. Whenever a
problem is detected, the UPS lights a “Service” indicator. Self-test is extremely
useful during troubleshooting and maintenance.
PRECISE LOAD AND OVERLOAD INFORMATION
The Alpha CFR provides vital load information to eliminate guess work
associated with matching the appropriate load to your unit. The Alpha CFR displays
the existing load, and whenever the load exceeds the rated output, an "Overload"
indicator is illuminated.
GENERATOR READY
The CFR UPS is equipped with a frequency sense circuit, along with a
constant slew frequency synchronization circuit, to provide trouble-free operation
with most standby generators.
SAFETY
Designed to meet or exceed the safety standards established by UL,
CSA and VDE, the Alpha CFR UPS is one of the safest, most reliable and versatile
uninterruptible power supplies available. Our commitment to safety and quality
engineering has not only established industry-wide safety standards, but has earned
Alpha Technologies international recognition as a leader in power protection
equipment.
1. INTRODUCTION
70
6. MAINTENANCE
6.7
Troubleshooting Using the SID
The OUTPUT LOAD LEDs, located on the front panel of the Standard Interface
Device, are designed to display UPS fault conditions once the unit has detected an
internal problem, indicated by the SERVICE LED. This information provided by the
LEDs is extremely useful during troubleshooting and maintenance. If the UPS is equipped
with an IID, refer to its operator’s manual for further troubleshooting information.
If your UPS SERVICE LED is ON, press and hold the ALARM OFF switch for
approximately 3 seconds. The OUTPUT LOAD LED's indicate:
Fig. 32
Standard Interface Device (Troubleshooting)
LOW BATTERY
WARN
ING
LOW
BATTERY
SHUTDOWN
L INE PRE SENT
L INE FA ILURE
SERVICE
TEST
ALPHA
TECHNOLOGIES
ALARM
OFF
OUTPUT LOAD
OVERLOAD
100 %
75 %
50 %
25 %
MANUAL
START
SERVICE LED
OUTPUT LOAD LEDs
ALARM OFF Switch
Standard Interface Device - Fault Indicators
LED
Flashing
Continuous
OVERLOAD
Not Applicable
Fast Detector / Low Sensitivity
Setting Active
100%
PLL Fault
High Ambient Temperature
75%
Output Voltage High
Output Voltage Short Circuit
50%
PWR BRD Fault
PWR BRD EPROM Failure
or -5 VDC Failure
25%
Self-Test Failure
Battery Over-Voltage
or Charger Fault
