Lenze SCD Series - Manual (Page 97)

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B.7 NETWORK TROUBLESHOOTING
To aid in troubleshooting parameter number C10 can be accessed without entering PASSWORD.
Simply press the MODE button twice to "skip" over the PASSWORD prompt and "P50" will be
displayed. Then use the V and W buttons to scroll to C10 which displays the status of the DeviceNet
TM
connection.
SCD Drive cannot be - Duplicate DeviceNet address - Ensure SCD drive address is unique.
accessed from network; - Reset SCD drive by cycling power.
C10 code is "083". - Use Faulted Node Recovery utility.
SCD Drive cannot be - Communication section is not - Check DeviceNet connections and
accessed from network; receiving power. power.
C10 code is "093". - Network was not powered up - Check the baud rate.
before the SCD drive. - Ensure bias resistors were placed
- Invalid baud rate. correctly.
- Reset SCD drive by cycling power.
- Contact AC Tech Service Dept.
SCD drive cannot be - Communication section is not - Check DeviceNet connections and
accessed from network; receiving power. power.
C10 code is different than - Connection problem; shorted - Check the scanner device.
090 or "093". signal wires for example.
- Scanner device failure.
SCD drive stops and "JF" - SCD communication has been lost - Check the Master device.
fault is displayed; C10 code and the Watchdog Timer shut down - Change expected packet rate if
is "x3x" or "xx3" the drive. Master cannot handle the update
(x = any number except 9). - Communication was lost after the rate.
Master established communication. - Re-establish communication and
- Scanner device failure. clear the fault.
SCD drive stops without a - Master device closed established - Switch Off Network Control before
fault; C10 code is "111". connection when SCD drive was in established connection is closed.
Network Control Mode, and - Set the DeviceNet Parameter ID #19
Parameter ID #19 DeviceNet Idle DeviceNet Idle Mode to 1 ("Hold Last
Mode is set to 0 ("Stop the Drive"). State").
- Re-establish connection and
re-start the SCD drive.
SCD drive stops and "nF" - Master device forced Network fault; - Check Master device control logic.
fault is displayed; C10 code Control Supervisor Object
is "xxx" (x = any number). 0x29-1-17 "Force Fault Trip".
SYMPTOM POSSIBLE CAUSE REMEDY
NETWORK TROUBLESHOOTING