Mitsubishi Electronics FR-V500 Speed control operation Operation command setting, Speed command

Speed control operation

4.1.4Operation command setting

(1) Forward and reverse rotation commands (terminals STF, STR)

1)Command from the operation panel (FR-DU04-1): Turn on FWD or REV (Refer to page 22.).

2)External command: Turn the forward/reverse rotation command (terminal STF, STR)on. (Refer to page 23.) (Turning both terminals STF and STR on or off will give a stop command.)

REMARKS

Use Pr. 79 "operation mode" to change the operation mode between operation panel (PU) and external command (EXT). (Refer to page 52.)

(2) Speed command

1)Operation panel (FR-DU04-1) speed setting (Refer to page 22.)

REMARKS

Use Pr. 79 "operation mode selection" to change the operation mode between operation panel (PU) and external command (EXT). (Refer to page 52.)

2)External analog command (terminal 2 (or terminal 1))

Give a speed command using the analog signal input to terminal 2 (or terminal 1).

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 No. 2 bias" or Pr. 903 "speed setting No. 2 gain". (Refer to page 47.)

•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 add- ing auxiliary of the speed setting signal of terminal 2.

•Set the adjustment of bias/gain of terminal 1 in Pr. 917 "No. 1 terminal bias (speed)" or Pr. 918 "No. 1 terminal gain (speed)".

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)

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) > 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 sig- nals (RH, RM, RL). If any of external signals (RH, RM, RL) is on, the multi-speed commands are made valid.

4.1.5Torque restriction

Select the setting method of output torque restriction during speed control from among the external analog input terminal "3" or "1" (Pr. 868 "No.1 terminal function selection" = "2") or parameter settings using Pr. 810 "torque restriction mode".

Torque restriction is factory-set to exercise by parameter settings, and the restriction level is 150%.

Parameter	Name	Factory	Description
		Setting
			0: Motor output is made constant (torque is reduced)
	Constant output region		1: Torque is made constant
803	torque characteristic	0	You can select whether the torque restriction in the constant output
	selection		region to be constant torque restriction or constant output restriction.
			(Refer to page 38.)
			0: Internal torque restriction (torque restriction by parameter settings)
			(Refer to page 34)
			1: External torque restriction (torque restriction using No. 3 and No. 1
			(option (FR-V5AX) No. 6 terminal))
	Torque restriction input		With the upper limit of torque restriction as set in Pr. 22, Pr. 812, Pr. 813
810		0	and Pr. 814, the analog input from the No. 3 terminal input is used as
	method selection
			the torque restriction value on the driving side within the Pr. 22 setting
			range. When regenerative torque restriction is assigned to the No. 1
			terminal or option's No. 6 terminal on the regenerative side, the analog
			input from the No. 1 terminal or No. 6 terminal is used as the torque
			restriction.

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