Lenze SCD Series - Manual (Page 49)

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P50 FAULT HISTORY
The FAULT HISTORY stores the last eight faults that tripped the drive. Refer to Section 16.0 -
TROUBLESHOOTING for a list of the faults and possible causes.
Use the ! and " buttons to scroll through the fault entries. The far left digit of the display will be the
fault number and the remaining two digits will be the fault code. The faults are stored from newest to
oldest, with the first fault shown being the most recent.
The display will read “_ _” if the FAULT HISTORY does not contain any fault messages.
P51 SOFTWARE VERSION
This displays the software version number for the control board software. This information is useful
when contacting the factory for programming or troubleshooting assistance.
The software version is displayed in two parts which alternate. The first part is the software version,
and the second part is the revision number. For example, if the display shows "79-" and "-03", this
indicates that the drive contains the third revision of version 79 software.
P52 DC BUS VOLTAGE
This displays the DC bus voltage in percent of nominal. Nominal DC bus voltage is determined by
multiplying the drive’s nameplate input voltage rating by 1.4.
P53 MOTOR VOLTAGE
This displays the output voltage in percent of the drive’s nameplate output voltage rating.
P54 MOTOR LOAD
This displays the motor load in percent of the drive’s output current rating.
P55 0-10 VDC ANALOG INPUT
This displays the level of the 0-10 VDC analog input signal at TB-5/25. A reading of 100% indicates
a 10 VDC input at TB-5/25.
P56 4-20 mA ANALOG INPUT
This displays the level of the 4-20 mA analog input signal at TB-5/25. A reading of 20% indicates a
4 mA input at TB-5/25, and a reading of 100% indicates a 20 mA input at TB-5/25.
P57 TERMINAL STRIP STATUS
This indicates the status of several terminals using the vertical segments of the LED display. An
illuminated segment indicates that the particular terminal is closed with respect to TB-4. The CHARGE
RELAY is not a terminal, and should always be illuminated. See the diagram below: