Hitachi J300U Series Extension Function Code Contents and display, Carrier frequency setting, 400

Extension

function

code

Contents and display

Carrier frequency setting

Set the switching frequency of the power module.

(NOTE 1)

FUNC Initial value FUNC

➤	.	➤
	➤
2		1
	➤

.

NOTE 1: The initial value of carrier frequency varies with the inverter capacity. When VP1 to VP3 is selected,carrier frequency is automatically changed to VT.

Carrier frequency initial value

model type	initial value
	CT	VT
055 to 150 L/HF	16 kHz	8 kHz
220 L/HF	12 kHz	6 kHz
300 to 370 L/HF	10 kHz	5 kHz
450 to 550 L/HF	6 kHz	3 kHz
750 to 1100HF	3 kHz	2 kHz
1320 to 2200HF	2 kHz	2 kHz

Set the frequency commands (voltage frequency command (O-L terminal signal), current frequency command (OI-L terminal signal), and the number of samplings.

Frequency command sampling frequency setting

FUNC

Initial value

➤

2		➤
		1
	➤

FUNC

➤

¥

¥

¥

¥

NOTE: How to set

:The number of samplings is set to 1. The reaction time becomes shorter, but the output frequency becomes likely to vary.

:The number of samplings is set to 8. The reaction time becomes longer, but the output frequency becomes stable.

Set the output frequency of each multispeed speed. When setting four or more speeds, refer to the

item of output frequency setting.

Example of the connection method

Refer to Page 5-5

In the case
of multispeed		FUNC
setting 1
	➤
		FUNC

2

➤

. Initial value

➤

1

➤

(400)

(8) (7) (6) FM CM1 PLC P24 FW REV CF1 CF2

Example of Multispeed setting

Multispeed setting 1

Multispeed setting 2

Multispeed setting 3

In the case of multispeed setting 2

In the case of multispeed setting 3

	Control circuit
Multispeed	terminal
	(7) CF1	(6) CF2
Multispeed 1	ON	OFF
Multispeed 2	OFF	ON
Multispeed 3	ON	ON

NOTE: When using four or more multispeed commands,

use the multispeed terminal (CF3) as an input terminal.

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