Hitachi L100 Note:, NOTE:, Multi-SpeedSelect

4–10

Using Intelligent Input Terminals

Operations Monitoring

Multi-Speed Select

The inverter can store up to 16 different target frequencies (speeds) that the motor output uses for steady-state run condition. These speeds are accessible through programming four of the intelligent terminals as binary-encoded inputs CF1 to CF4 per the table to the right. These can be any of the five inputs, and in any order. You can use fewer inputs if you need eight or fewer speeds.

Note: When choosing a subset of speeds to use, always start at the top of the table, and with the least-significant bit: CF1, CF2, etc.

The example with eight speeds in the figure below shows how input switches configured for CF1– CF3 functions can change the motor speed in real time.

3rd Speed

7th 5th 2nd 1st 6th 4th 0th

1 [CF1] 0

1 [CF2] 0

1 [CF3] 0

1 [FWD] 0

t

Multi-	Input Function
speed	CF4	CF3	CF2	CF1
Speed 0	0	0	0	0
Speed 1	0	0	0	1
Speed 2	0	0	1	0
Speed 3	0	0	1	1
Speed 4	0	1	0	0
Speed 5	0	1	0	1
Speed 6	0	1	1	0
Speed 7	0	1	1	1
Speed 8	1	0	0	0
Speed 9	1	0	0	1
Speed 10	1	0	1	0
Speed 11	1	0	1	1
Speed 12	1	1	0	0
Speed 13	1	1	0	1
Speed 14	1	1	1	0
Speed 15	1	1	1	1

NOTE: Speed 0 is set by the A_20 parameter value.

and

Option	Terminal	Function Name	Input	Description
Code	Symbol		State
02	CF1	Multi-speed Select,	ON	Binary encoded speed select, Bit 0, logical 1
		Bit 0 (LSB)
			OFF	Binary encoded speed select, Bit 0, logical 0
03	CF2	Multi-speed Select,	ON	Binary encoded speed select, Bit 1, logical 1
		Bit 1
			OFF	Binary encoded speed select, Bit 1, logical 0
04	CF3	Multi-speed Select,	ON	Binary encoded speed select, Bit 2, logical 1
		Bit 2
			OFF	Binary encoded speed select, Bit 2, logical 0
05	CF4	Multi-speed Select,	ON	Binary encoded speed select, Bit 3, logical 1
		Bit 3 (MSB)
			OFF	Binary encoded speed select, Bit 3, logical 0