Mitsubishi Electric FR-D720-0.2K-G, Instruction Manual

Page: 164 / 302

161
Misoperation prevention and parameter setting restriction
4
P
A
RAMETE
R
S
4.15.3 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-PU07), the start signals (STF, STR signals) via external terminals, and the forward and reverse
rotation commands through communication.
4.15.4 Extended parameter display (Pr. 160)
The above parameter allows its setting to be changed during operation in any operation mode even if "0" (initial value) is set in
Pr. 77 Parameter write selection
.
(1) Display of simple mode parameters and extended parameters (Pr. 160)
 When
Pr. 160
= "9999"(initial value), only the simple mode parameters can be displayed on the operation panel and
parameter unit (FR-PU07). (Refer to the parameter list , page 54 , for the simple mode parameters.)
 When Pr. 160 = "0", 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 161.)
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
9999
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 speed setting
,
Pr. 16 Jog acceleration/deceleration time
, and
Pr. 991 PU contrast adjustment
are displayed as simple mode
parameter when the parameter unit (FR-PU07) is fitted.
Parameters referred to
Pr. 15 Jog speed setting 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 177.
Pr. 991
PU contrast adjustment
Refer to page 246.