Machine Data Copy Function - Omron VARISPEED L7 Manual

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

y
If a Hiperface 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
Parameter
No.
F1-25 Encoder copy selection
F1-26 Encoder write protection
Saved Parameters
The following parameters are saved in the encoder memory:
• E1-04 Motor maximal speed
• E1-06 Motor rated speed
• E1-13 Motor rated voltage
• E5-02 Motor rated power
• E5-03 Motor rated current
• E5-04 Motor pole number
• E5-05 Motor line-to-line resistance
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
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
Name
page 7-17, Machine Data Copy Function
Control Methods
Change
Factory during
Open
Setting Opera-
V/f Loop
tion
Vector
0 No No No
0 No No No
• E5-06 Motor d axis inductance Ld
• E5-07 Motor q axis inductance Lq
• E5-09 Motor voltage constant Ke
• F1-01 PG pulse constant
• F1-05 PG rotation direction
• F1-21 Absolute encoder selection
• F1-22 Magnet position offset
page 7-17, Machine Data
Closed
Closed
Loop
Loop
Vector
Vector
(PM)
No A
No A
6
Faults).
75
6-