Speed Limit (Pr. 807 To Pr. 809) - Mitsubishi Electric FR-V500 Instruction Manual

3.31.4 Speed limit (Pr. 807 to Pr. 809
When you selected torque control, set the speed limit value to prevent the load torque from becoming less
than the torque command value, resulting in motor overspeed.
Parameter
807 Speed limit selection
808 Forward rotation speed limit
809 Reverse rotation speed limit
<Settings>
Set the speed limit value to prevent the load torque from becoming less than the torque command value, resulting in
motor overspeed. Select the speed limit input method using Pr. 807.
Pr. 807 Setting Speed Limit Input Method
0 Same method as in speed
(factory setting) setting for speed control
Pr. 808 Forward rotation
speed limit
1
Pr. 809 Reverse rotation
speed limit
Forward/reverse rotation
speed limit
2 (analog polarity switchover
speed limit)
(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 limit
809 Reverse rotation speed limit
Using the parameters, set the forward rotation and reverse rotation speed limit levels individually.
Speed
150% torque
Forward
rotation
0
Reverse rotation
Operation selection functions 4 (Pr. 800 to Pr. 809)
torque
Name
• Speed setting from the control panel
• External analog command (terminal 1, 2)
• Multi-speed command
• Option (FR-V5AX etc.)
• For both PU and external operations, speed limit changes according to
the acceleration/deceleration time.
According to the rotation direction, set the speed limits in forward and
reverse rotation directions individually. When the reverse rotation speed
limit is 9999, the setting is the same as that of the speed limit in the
forward rotation direction.
The analog voltage of the terminal 1 input is used to make speed limit. For
0 to 10V input, set the forward rotation speed limit. (The reverse rotation
speed limit is Pr. 1 "maximum speed" .) For -10 to 0V input, set the reverse
rotation speed limit. (The forward rotation speed limit 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
868 terminal 1 function assignment
"
Name
Torque
controllable
range
Pr. 808, forward
rotation speed
Pr. 808, forward
limit level
rotation speed
limit level
Pr. 809, reverse
Output torque rotation speed
limit level
Pr. 809, reverse
rotation speed
Start signal
limit level
)
Factory Setting
0
1500r/min
9999
Operation
. (Refer to page 183.)
"
Factory Setting
1500r/min
9999
Speed
Pr.7
173
Setting Range
, ,
0 1 2
0 to 3600r/min
,
0 to 3600r/min 9999
5 in Pr.
" "
Setting Range
0 to 3600r/min
,
0 to 3600r/min 9999
Speed limit
operation
Pr.8
Torque
controllable
range
3