Instruction manual

34
Speed control operation
4.1.4 Run command setting
(1) Forward and reverse rotation commands (terminals STF, STR)
1) Command from the control panel (FR-DU04-1): Turn on or (Refer to page 23.).
2) External command: Turn the forward/reverse rotation signal (terminal STF, STR) on. (Refer to page 24.)
(Turning both terminals STF and STR on or off will give a stop command.)
(2) Speed command
1) Control panel (FR-DU04-1) speed setting (Refer to page 23.)
2) External analog command (terminal 2 (or terminal 1))
Give a speed command using the analog signal input to terminal 2 (or terminal 1).
3) Multi-speed commands
The external signals (RH, RM, RL) may also be used to give speed command.
(The terminals are factory-set as follows. DI1 = RH, DI2 = RM, DI3 = RL)
4.1.5 Torque limit
Select the setting method of output torque limit during speed control from among the external analog input terminal
"3" or "1" (Pr. 868 "terminal 1 function selection" = "2") or parameter settings using Pr. 810 "torque limit input method
selection".
Torque limit is factory-set to exercise by parameter settings, and the limit level is 150%.
REMARKS
Use Pr. 79 "operation mode selection" to change the operation mode between control panel (PU) and external
command (EXT). (Refer to page 56.)
REMARKS
Use Pr. 79 "operation mode selection" to change the run command between control panel (PU) and external
command (EXT). (Refer to page 56.)
REMARKS
• Set Pr. 73 "speed setting signal" to change between the main speed and override of terminal 2.
( Refer to the Instruction Manual (detailed)).
• For the adjustment of bias/gain of analog signal, set terminal 2 in Pr. 902 "speed setting terminal 2 bias" or Pr. 903
"speed setting terminal 2 gain". (Refer to page 51.)
• The function of terminal 1 changes according to the setting of Pr. 868 "terminal 1 function selection". For the factory
set function of terminal 1, refer to the Instruction Manual (detailed). The function of this terminal is factory-set to
adding auxiliary of the speed setting signal of terminal 2.
• Set the adjustment of bias/gain of terminal 1 in Pr. 902 "speed setting terminal 2 bias" or Pr. 903 "speed setting terminal 2
gain".
REMARKS
• The RH, RM and RL signals are assigned to terminals DI1 to DI4 and STR using Pr. 180 to Pr. 183 and Pr. 187
(input terminal function selection).
• Speed control has the following priority:
maximum setting > Jog >speed jump> minimum setting > 12 bit digital (FR-A5AX) /16 bit digital (FR-V5AH) > multi-
speed > option high-resolution output (FR-V5AX) > PID control > analog input
CAUTION
When the speed command is to be given using the analog command (terminal 2), turn off the external signals
(RH, RM, RL). If any of external signals (RH, RM, RL) is on, the multi-speed commands are made valid.
Parameter Name
Factory
Setting
Description
803
Constant power range
torque characteristic
selection
0
0: Motor output is made constant (torque is reduced)
1: Torque is made constant
You can select whether the torque limit in the constant power range to be
constant torque limit or constant output limit. (Refer to page 41.)
810
Torque limit input
method selection
0
0: Internal torque limit (torque limit by parameter settings) (Refer to page 35)
1: External torque limit (torque limit using the terminal 3, 1 and 6 (option FR-
V5AX))
With the upper limit of torque limit as set in Pr. 22, Pr. 812, Pr. 813 and Pr.
814, the analog input from the terminal 3 input is used as the torque limit
value on the driving side within the Pr. 22 setting range. When
regenerative torque limit is assigned to the terminal 1 or option's terminal 6
on the regenerative side, the analog input from the terminal 1 or terminal 6
is used as the torque limit.
FWD
REV