Lenze ETMD Tmd frequency inverter - Manual (Page 22)

21 ENGLISH
Troubleshooting and fault elimination
(1) The drive can only be restarted if the error message has been reset; see c70
Status Cause Remedy
e.g. Present output frequency Trouble free operation
O Stop
(outputs U, V, W inhibited) LOW signal at terminal 28 Set terminal 28 to HIGH
1 Inhibit
(outputs U, V, W inhibited) Controller is set up for remote
keypad or serial control (see C01) Start the controller via the remote
keypad or serial link
Output frequency = 0 Hz
(outputs U, V, W inhibited) Quick stop activated through digital
input or serial link Deactivate Quick stop
Flying restart attempt c42 = 2, 3
DC-injection brake active DC-injection brake activated
• via digital input
• automatically Deactivate DC-injection brake
• digital input = LOW
• automatically after holding time c06
has expired
L Motor calibration is in process c48 = 1 and terminal 28 = HIGH Only perform the motor calibration
when C14 = 4...7
Current limit reached Controllable overload Automatically (see C22)
Undervoltage on DC bus Mains voltage too low Check mains voltage
Overvoltage on DC bus during
deceleration (warning) Excessively short deceleration time
(C13, c03) Automatically if overvoltage
< 1 s,
U , if overvoltage > 1 s
No access to code Can only be changed when the
controller is in
or
Set terminal 28 to LOW or inhibit by
serial link
Remote keypad is active Attempt to use buttons on front of
controller Buttons on front of controller are
disabled when remote keypad is active
Error Cause Remedy (1)
A/D converter error Please contact Lenze
Identification fault C93 value stored on EPM does not match
controller model
• Use EPM providing valid data
• Load Lenze setting
Data on EPM not valid
Data not valid for controller
Data error
OEM data not valid
L Automatic start inhibited c42 = 0, 2 LOW-HIGH signal change at terminal 28
EPM error EPM missing or defective Power down and replace EPM
Digital inputs not
uniquely assigned E1...E4 assigned with the same digital
signals Each digital signal can only be used
once
Either just “UP” or “DOWN” used Assign the missing digital signal to a
second terminal
Dynamic braking fault Dynamic braking resistors are overheating Increase deceleration time
5 Troubleshooting and fault elimination