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162
Misoperation prevention and parameter setting restriction
4.17.3 Reverse rotation prevention selection (Pr. 78)
Set this parameter when you want to limit the motor rotation to only one direction.
This parameter is valid for all of the reverse rotation and forward rotation keys of the enclosure surface operation panel and
of parameter unit (FR-PU04/FR-PU07), the start signals (STF, STR signals) via external terminals, and the forward and
reverse rotation commands through communication.
4.17.4 Extended parameter display (Pr. 160)
(1) Display of simple mode parameters and extended parameters (Pr. 160)
When Pr. 160 = "9999", only the simple mode parameters can be displayed on the operation panel and parameter unit (FR-
PU04/FR-PU07). (Refer to the parameter list , page 56, for the simple mode parameters.)
When Pr. 160 = "0"(initial value), simple mode parameters and extended parameters can be displayed.
This function can prevent reverse rotation fault resulting from the incorrect input of the start signal.
Parameter
Number
Name
Initial
Value
Setting Range Description
78
Reverse rotation prevention
selection
0
0 Both forward and reverse rotations allowed
1 Reverse rotation disabled
2 Forward rotation disabled
The above parameter can be set when Pr. 160 Extended function display selection = "0". (Refer to page 162)
Parameter which can be read from the operation panel and parameter unit can be restricted.
In the initial setting, only the simple mode parameters are displayed.
Parameter
Number
Name
Initial
Value
Setting Range Description
160
Extended function display
selection
0
9999 Displays only the simple mode parameters
0 Displays simple mode + extended parameters
REMARKS
When RS-485 communication is used to read the parameters with Pr. 551 PU mode operation command source selection ≠ "2", all
parameters can be read regardless of the Pr. 160 setting.
Pr. 15 Jog frequency, Pr. 16 Jog acceleration/deceleration time, and Pr. 991 PU contrast adjustment are displayed as simple mode
parameter when the parameter unit (FR-PU04/FR-PU07) is fitted.
Parameters referred to
Pr. 15 Jog frequency Refer to page 91
Pr. 16 Jog acceleration/deceleration time Refer to page 91
Pr. 551 PU mode operation command source selection Refer to page 176
Pr. 991 PU contrast adjustment Refer to page 241