Omron VARISPEED L7 User Manual

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6
Detecting a Wrong Rotation Direction DV4 (F1-19, Closed Loop Vector for PM only)
A DV4 fault indicates a wrong motor rotation direction. It is detected if
• the reference direction and the motor rotation direction have opposite signs and
• the deviation is higher than the value of parameter F1-19 (set in encoder pulses).
 Machine Data Copy Function
If a Hiperface
y
or an EnDat encoder is used, the motor and encoder data can be saved in the encoder memory
and can be read out later, e.g. if a motor has been replaced to an equal type or if the inverter is replaced.
Related Parameters
Saved Parameters
The following parameters are saved in the encoder memory:
Saving Parameters Into the Encoder Memory
To save parameters in the encoder memory, the Encoder write protection must be off (F1-26 = 1) and the
parameter F1-25 has to be set to 1 (“ERED, INViENC WRITING” is displayed during the save process).
The display of F1-25 automatically returns to 0 when the operation is finished (“ERED, WRITE COM-
PLETE” is displayed). If any fault occurs the fault code will be displayed (refer to page 7-17, Machine Data
Copy Function Faults).
Parameters which had been stored in the encoder before will be overwritten.
Read Parameters From the Encoder Memory
To read parameters form the encoder memory the parameter F1-25 must be set to 2. Before reading the param-
eters make sure, that the correct control mode and encoder type are selected in the parameters A1-02 and
n8-35. If parameter n8-35 has to be changed, cycle the power supply after changing it and set parameter F1-25
to 2 afterwards (“ECPY, ENCiINV COPIYING” is displayed during the read process). The display of F1-25
automatically returns to 0 when the operation is finished (“ECPY, COPY COMPLETE” is displayed). If any
fault occurs the fault code will be displayed (refer to page 7-17, Machine Data Copy Function Faults).
Parameter
No.
Name
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
F1-25 Encoder copy selection 0 No No No No A
F1-26 Encoder write protection 0 No No No No A
• E1-04 Motor maximal speed • E5-06 Motor d axis inductance Ld
• E1-06 Motor rated speed • E5-07 Motor q axis inductance Lq
• E1-13 Motor rated voltage • E5-09 Motor voltage constant Ke
• E5-02 Motor rated power • F1-01 PG pulse constant
• E5-03 Motor rated current • F1-05 PG rotation direction
• E5-04 Motor pole number • F1-21 Absolute encoder selection
• E5-05 Motor line-to-line resistance • F1-22 Magnet position offset

Omron VARISPEED L7 Specifications

General

Brand	Omron
Model	VARISPEED L7
Category	Inverter
Language	English