Mitsubishi Electric FR-E800, Инструкция по эксплуатации, Страница: 117 / 484

116
5. Speed Control
5.4 Setting the torque limit level
• To set individually for each quadrant, use Pr.812 Torque limit level (regeneration), Pr.813 Torque limit level (3rd
quadrant), Pr.814 Torque limit level (4th quadrant) . When "9999" is set, Pr.22 setting is regarded as torque limit level
in all the quadrants.
 Torque limit level using analog input (terminal 4) (Pr.810 = "1", Pr.858)
• The torque is limited with the analog input of terminal 4. (External torque limit)
• Torque limit using analog input is valid with a limit value lower than the internal torque limit
(Pr.22, Pr.812 to Pr.814) . (If
the torque limit using analog input exceeds the internal torque limit, the internal torque limit is valid.)
• For inputting from terminal 4, set Pr.858 Terminal 4 function assignment = "4".
• The torque limit using analog input can be calibrated by the calibration parameters C38 (Pr.932) to C41 (Pr.933) . (Refer
to page 323 .)
 Internal torque limit 2 (Pr.810 = "2", Pr.805, Pr.806)
• The setting value of Pr.805 or Pr.806 is used as the torque limit value.
• When the CC-Link, CC-Link IE TSN, or CC-Link IE Field Network is used, the torque limit value can be input using a remote
register (RWwC).
*1 The torque limit setting is defined as an absolute value.
*2 The torque limit value can also be set using the operation panel or parameter unit.
*3 The torque can also be limited by setting a value in Pr.805 or Pr.806 .
*4 On the operation panel or parameter unit, the setting range is "673 to 1327 (-327% to 327%)" and the setting increment is 1%.
quad1
(Pr.22)
quad4
(Pr.814)
(Pr.813)
quad2
(Pr.812)
Reverse
rotation
Forward
rotation
Torque limit
Speed
Reverse
driving
Reverse
regeneration
Rated speed
quad3
+
-
Forward
regeneration
Forward
driving
Calibration example of terminal 4
400
150
0
Torque setting signal
100%
Bias
0 20mA
C40(Pr.933)
Gain
C38(Pr.932)
C39(Pr.932) C41(Pr.933)
T
orque(%)
Initial value
Pr.804
setting
Torque limit input Setting range
*1
Setting increments Required condition
1
Torque limit by Pr.805 , Pr.806
*2
600 to 1400
(-400% to 400%)
1%
—
3
Torque limit by remote register (RWwC)
*3
FR-A8NC is installed, or CC-Link
IE TSN or CC-Link IE Field
Network Basic is used.
5
Torque limit by remote register (RWwC)
*3 -32768 to 32767 (two's
complement)
(-327.68% to 327.67%)
*4
0.01%
*4
6
Torque limit by Pr.805 , Pr.806
*2