© 2010 SymCom, Inc. All Rights Reserved 11
SYSTEM DISPLAY
On power up, the 777-P2-DEMO will show the current software revision. For example if the software
revision is 33.04, the 777-P2-DEMO will show 033 followed by 004.
The output display can show one of the following parameters when MODE SELECT is in RUN: L1-
L2, L2-L3, and L3-L1 line voltage; %VUB; A, B, and C phase current; %CUB; measured GF current.
Remember, with the 777-P2-DEMO all values are simulated and are constant. The display is used
for programming the operating parameters of the device and also identifies what caused the unit to
go into a fault condition, and under normal operating conditions, what the last fault was. The last
fault can be displayed by pressing and holding the RESET/PROGRAM button while MODE SELECT
is in RUN. When the unit trips on a fault condition, the current fault condition will be shown in the
display without pressing the button (pressing the reset button at this time will reset the unit). Table 5
lists the fault codes the unit could display.
Displayed
Message
Meaning
oc
Tripped on overcurrent
ub
Tripped on current unbalance or unit won’t start because the voltage is
unbalanced
uc
Tripped on undercurrent
GrF
Tripped on ground fault
HI
A high voltage condition exists (won’t allow motor to start)
Lo
A low voltage condition exists (won’t allow motor to start)
oFF
A stop command was issued from a remote source
HPr
Tripped on high power
LPr
Tripped on low power
CLo
Tripped on low control voltage
cLr
No previous faults
FFF
Displayed value is greater than 999 (can be due to incorrect MULT setting)
Table 5: Fault Codes
