GB - 19
Operation of the Unit
5.4 Parameter Description
The following parameters serve for the functional monitoring during operation.
CP. 1
Inverter state
The status display indicates the actual operating condition of the inverter.
Possible displays and their meaning:
noP
"no Operation" Starting terminal not bridged, thyristors blocked,
output voltage = 0 V
run
"run" supply unit ready for operation; Thyristors connected
charG "charge" DC output voltage is loaded on actual DC voltage
GFt
"Ground Fault test" is displayed during power-on test.
E.GF1 Earth fault during power-on test
E.GF2 Earth fault during operation
E.cto
"Error charge time out" DC output voltage could not be loaded
within the adjusted charging time.
E.rEco "Error rectifier output" Difference between DC output voltage and
actual DC voltage during the operation higher than 200 V.
E.UPh "Error Phase failure" detects an error in one input phase (see
6.6.5). The utilization of L1, L2 and L3 is compared all 4 ms with
the average value of the effective input currents (CP. 2) If after
triple scanning (12 ms) a difference of >15 % of one phase to CP.2
is detected, then
•
a prewarning is released and switched off after 60 s, if the
difference is < 50 %.
•
immedeiately switched off, if the difference is ≥ 50 %.
CP. 2
AC current
Display of the average value of the effective input currents of phase L1...L3
in ampere.
CP. 3
DC current
Display of the actual DC output current in ampere.
CP. 4
DC current
peak value
This display enables a detection of short-term current peaks, as the highest
value that occurred is stored.
The peak value can be reset with UP or Down when the unit is switched on.
Switching off the unit deletes the peak value.
CP. 5
Actual
DC gain
Display of the actual utilization of the supply unit in percent. 100 %
correspond to the rated current.
CP. 6
Actual
DC voltage
Display of the current DC voltage in volt. The value is measured in the
charge circuit. The value serves as comparison value to the DC output
voltage.
CP. 7
DC-
Output voltage
Display of the current DC output voltage in volt. The value is measured at
the output terminals of the supply unit.
