Mitsubishi FR - S500 External frequency selection REX, RH, RM, RL, Current input 4, 5, AU

Operation Automatic operation (0 to 10V) 4 to 20mA

0 to 5V

operation

Manual

(2) Current input (4, 5, AU)

To automatically perform operation under constant pressure or temperature control using a fan, pump etc., enter the controller output signal of 4 to 20mADC across terminals 4-5.

Terminals AU-SD must be shorted to use the 4 to 20mADC signal for operation. (Assign the signal AU using any of Pr. 60 to Pr. 63.)

When the multi-speed signal is input, the current input is ignored.

Automatic/manual signal switching

AU

SD

Manual operation	10
Frequency setting	2
potentiometer	5 Inverter
Automatic signal	4
DC4-20mA

Across

AU-SD ON OFF

Manual-Automatic Switching

1.7.3 External frequency selection (REX, RH, RM, RL)

Up to 15 speeds (*) may be selected for an external command forward rotation start or up to 7 speeds for an external command reverse rotation start according to the combination of connecting the multi-speed select terminals REX, RH, RM and RL-SD, and multi-speed operation can be performed as shown below by shorting the start signal terminal STF (STR)-SD.

Speeds (frequencies) may be specified as desired from the operation panel or parameter unit as listed below.

CAUTION

•* Change the setting of Pr. 63 "STR terminal function selection" to "8", and assign and use the 15-speed select signal (REX).

•Has precedence over the main speed setting signal (0 to 5V, 0 to 10V, 4 to 20mA DC).

(Hz)	Speed 1
	(high speed)
frequency			Speed 2 Speed 5
		(middle speed)					Speed 6
			Speed 3		Speed 4
Output		(low speed)						Speed 7
									Time
RH	ON					ON	ON	ON
RM		ON		ON			ON	ON
RL			ON		ON			ON

REX

Output frequency (Hz)

RH

RM

RL

REX

Speed 10

Speed 11

Speed 9	Speed 12
	Speed 13
Speed 8
	Speed 14
	Speed 15

Time

ON ON ON ON

		ON	ON			ON	ON
	ON		ON		ON		ON
ON	ON	ON	ON	ON	ON	ON	ON

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