Speed Restriction (Pr. 807 To Pr. 809) - Mitsubishi Electric FR-V560 Instruction Manual

4.31.4 Speed restriction (Pr. 807 to Pr. 809
When you selected torque control, set the speed restriction value to prevent the load torque from becoming
less than the torque command value, resulting in motor overspeed.
Parameter
807 Speed restriction selection
808 Forward rotation speed restriction
809 Reverse rotation speed restriction
<Settings>
Set the speed restriction value to prevent the load torque from becoming less than the torque command value,
resulting in motor overspeed. Select the speed restriction input method using Pr. 807.
Speed Restriction Input
Pr. 807 Setting
0 Same method as in speed
(factory setting) setting for speed control
Pr. 808 Forward rotation
speed restriction
1
Pr. 809 Reverse rotation
speed restriction
Forward/reverse rotation
speed restriction
2 (analog polarity switchover
speed restriction)
(Terminal 1 analog input)
(1) When Pr. 807 =0
Refer to the Instruction Manual (basic).
(2) When Pr. 807 = 1
Parameter
808 Forward rotation speed restriction
809 Reverse rotation speed restriction
Using the parameters, set the forward rotation and reverse rotation speed restriction levels individually.
Speed
150% torque
Forward
rotation
0
Reverse rotation
Operation selection functions 4 (Pr. 800 to Pr. 809)
Name
Method
• Speed setting from the operation panel
• External analog command (terminal 1, 2)
• Multi-speed command
• Option (FR-V5AX etc.)
• For both PU and external operations, speed restriction changes
according to the acceleration/deceleration time.
According to the rotation direction, set the speed restrictions in forward
and reverse rotation directions individually. When the reverse rotation
speed restriction is 9999, the setting is the same as that of the torque
restriction in the forward rotation direction.
The analog voltage of the terminal 1 input is used to make speed
restriction. For 0 to 10V input, set the forward rotation speed restriction.
(The reverse rotation speed restriction is Pr. 1 "maximum speed" .) For -10
to 0V input, set the reverse rotation speed restriction. (The forward
rotation speed restriction is Pr. 1 "maximum speed".) The maximum speed
of both the forward and reverse rotation is Pr. 1 "maximum speed". When
terminal 1 input is selected, set
assignment
Name
Torque
controllable
range
Pr. 808, forward
rotation speed
Pr. 808, forward
restriction level
rotation speed
restriction level
Pr. 809, reverse
Output torque rotation speed
restriction level
Pr. 809, reverse
rotation speed
Start signal
restriction level
with without
Encoder Encoder
)
Torque
Factory Setting
0
1800r/min
9999
Operation
" "
5 in Pr. 868
"
. (Refer to page 195.)
Factory Setting
1800r/min
9999
Speed
Pr.7
185
Setting Range
, ,
0 1 2
0 to 3600r/min
,
0 to 3600r/min 9999
"
No. 1 terminal function
Setting Range
0 to 3600r/min
,
0 to 3600r/min 9999
Speed restriction
operation
Pr.8
Torque
controllable
range
4