Schneider Electric ATV61 manual Speed mode, 2 directions of operation, Limitations

3. Implementation of the communication option cards

3. 11. 2. 4-speed mode, 2 directions of operation

		Control bits
D3(O)	D2(O)		D1(O)	D0(O)		Command
LI4	LI3		LI2	LI1
4-spd	2-spd		Reverse	Forward
0	0		0	0		Normal
0	1		0	0	Stop
1	0		0	0
1	1		0	0
0	0		0	1		1st speed: LSP+AI
0	1		0	1	Forward	2nd speed: SP2
1	0		0	1		3rd speed: SP3
1	1		0	1		4th speed: HSP
0	0		1	0		1st speed: LSP+AI
0	1		1	0	Reverse operation	2nd speed: SP2
1	0		1	0		3rd speed: SP3
1	1		1	0		4th speed: HSP
0	0		1	1
0	1		1	1	Reset
1	0		1	1
1	1		1	1

Assignment of inputs/outputs

4logic inputs used on the terminals, 2-wire control LI1: Forward

LI2: Reverse

LI3: 2 preset speeds

LI4: 4 preset speeds

3. 11. 3. Managing the terminal outputs (AS-i monitoring bits)

Mode parameterization bits					Monitoring bits			Command
	(not used)
P3	P2	P1	P0	D3(I)	D2(I)	D1(I)	D0(1)	Names of the AS-i variables
x	x	x	x			R2	R1	Example of assignment to the terminal relays

Example 1:

1

1

D0(I)=1: drive ready for remote control

D1(I)=1: motor running

3. 11. 4. Limitations

The commands transmitted by the data bits on the AS-i bus, which cannot be reproduced by means of direct wiring, are:

•Fast stop (0 1 0 0)

•Stop with DC injection (1 0 0 0)

•Freewheel stop (1 1 0 0)

•Fault reset (1 1 1 1)

In fact, it is not possible to wire directly, for example, bit D2 (0 1 0 0 = fast stop) on an additional logic input of the Altivar 61 and assign to it the fast stop function, because each time bit D2 is at 1 but for another command (e.g., 0 1 0 1 = forward - SP2), the motor is stopped because the stop function has priority.

3. 11. 5. Configuring the drive logic I/O

Please refer to the Programming Guide for information about customizing Lix and Rx assignment.

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