Velocity

 

 

 

 

 

target_position X2

 

V2

 

 

 

 

target_position X1

 

 

V1

 

 

 

T0

T1 T2

T3

Time

Figure 6.3: Single Set-Point Mode (Move After a Move) 6040h Bit 5=0

With change_set_immediately set to “1” , symbolized by the clear area in Figure 6.2, the host advises the drive to apply a new set-point immediately after reaching the last one. The relative timing of the other signals is unchanged. This behavior causes the drive to already process the next set-point X2 and to keep its velocity when it reaches the target_position X1 at T1. Then drive moves immediately to the already calculated next target_position X2.

Velocity

 

 

 

 

Second target_position

target_position reached

 

 

 

 

V2

given - immediate response

 

 

 

 

 

V1

 

 

 

T0

T1

T2

Time

Figure 6.4: Set of Setpoints (Move on a Move) 6040h Bit 5=1

Controlword (6040h) of Profile Position Mode

15

9

8

7

6

5

4

3

0

 

See 1.3

 

Halt

 

See 1.3

abs/rel

Change Set Immediately

New Set-Point

See 1.3

MSB

 

 

 

 

 

 

 

 

 

LSB

 

 

 

 

 

 

 

 

 

 

 

Bit

 

 

Name

 

Value

Description

 

 

 

 

4

New Set Point

 

0

Does not assume target position

 

 

 

 

 

1

Assume target position

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

Change Set

 

0

Finish the actual positioning and then start the next positioning

 

 

Immediately

 

1

Interrupt the actual positioning and start the next positioning

 

 

 

 

 

 

 

6

 

 

abs/rel

 

0

Target position is an absolute value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Target position is a relative value

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

Halt

 

0

Execute positioning

 

 

 

 

 

 

 

1

Stop motion with profile deceleration

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 6.1: Profile Position Mode Bits of Controlword

Part 2: DSP-402 Implementation

37

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Intelligent Motion Systems DSP-402 manual Controlword 6040h of Profile Position Mode