Page 7.13 - 10 COMBIVERT F5-A, -E, -H © KEB, 2012-10
Protective functions
7.13.1.11 Set selection error
Sets can be locked with Fr.03 "parameter set lock". If a disabled set is selected, the inverter remains in the old
set, i.e., no set change occurs.
The response to the selection of a disabled set is set via Pn.18 "Set selection error response". In the factory
setting, the error "39: ERROR! Parameter set selection" (E.Set) is triggered. For Pn.18 = 1...5 a malfunction
"102: ABN. Set selection error" (A.Set) is generated. For Pn.18 = „6: Function disabled", the drive continues
running in the old set without message.
7.13.1.12 Encoder interface / encoder error
Encoder interface error
On switch on, the control checks if an encoder interface is present, and if so, which one. If an invalid encoder
identier is read (e.g., due to EMC-malfunctions), or if the data exchange with the interface card cannot be
established, the drive reports "52: ERROR! Encoder interface" (E.Hyb).
The inverter state "59: ERROR! Interface change" (E.HybC) is displayed when the encoder interface card is
removed and replaced by a different type of interface prior to the switch on.
Encoder error
The progress message "32: ERROR! encoder 1 (E.EnC1)“ or „34: ERROR! Encoder 2 (E.EnC2)" is trigger if:
• a defective track is identied for an incremental encoder interface with monitoring of the incremental
tracks
• for resolver interfaces, signals outside of the specications are identied
• for encoder types that permit the storage of data (e.g., motor data, system position, etc.) in the encoder,
an invalid identier is read, and therefore the stored data cannot be interpreted.
For "intelligent" encoder interfaces (e.g., absolute encoder, Sin-/Cos encoder), "35: ERROR! Encoder change"
(E.EnCC) is trigger if:
• the encoder type or the interface type of the current software of the control board are not supported
• the signals of the absolute track or the signals of the incremental track are defective
• the identied position deviation between incremental position and absolute position is too large
• the encoder transmits an error message
• the encoder (for encoder types with data storage in the encoder) was swapped
• Adjusted increments per revolution of the inverter does not agree with the encoder increments per
revolution
The error E.EncC can be reset via parameter Ec.00 and from version 4.2 also via hardware or bus reset.
Exception! An error due to incorrect encoder increments per revolution is immediately (without reset!) reset if
the correct encoder increments per revolution is set.
Not all monitoring functions are available for all interface types. A more detailed description of the encoder error
can be found in chapter 7.11 "Speed measurement".
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