Troubleshooting And Fault Elimination - Lenze ETMD371L2YXA Instrucciones De Funcionamiento

Troubleshooting and fault elimination

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