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Application Examples
Inputs:
•
18 Reference index bit 0
•
19 Reference index bit 1
•
33 Reference index bit 2
•
32 Reference index bit 3
•
29 Reference index bit 4
Outputs:
•
X59/4 Reference index bit 0
•
X59/5 Reference index bit 1
•
X59/6 Reference index bit 2
•
X59/7 Reference index bit 3
6
6
•
X59/8 Reference index bit 4
Operating procedure:
1.
Select index (DI 18, 19, 29, 32, 33/PCD[7].1, .2, .3, .
4, .5, .6)
2.
Latch index (DI 10/PCD[1].4)
3.
New index read? (DO 4, 5, 6, 7, 8/PCD[2].1, .2, .3, .
4, .5, .6)
4.
Start positioning (DI 5/PCD[1].5)
5.
Referenced position reached (DO 2/PCD[1].2)
Input
18 (LSB)
state
state
state
Table 6.3 Index Numbering using Digital Inputs
PCD(7)
Bit1
state
0
state
0
state
1
Table 6.4 Index Numbering using PCD
44
19
33
32
29 (MSB)
0
0
0
0
0
0
1
1
0
0
1
0
1
1
0
Bit2
Bit3
Bit4
Bit5
0
0
0
0
1
1
0
0
0
1
1
0
Danfoss A/S © 04/2014 All rights reserved.
Operating Instructions
6.7 Quick Bus Positioning
The MCO 351 is controlled by an overall control system,
e.g. a PLC system.
Parameter 19-04 Control Source must be set to [1] Fieldbus
to enable fieldbus operation.
Operating procedure:
1.
2.
3.
4.
5.
6.
7.
8.
Quick stop: PCD[1].8 (must always be enabled to allow
operation)
Reset error: PCD[1].2
Index
Fieldbus communication is supported only if PCD channels
0
are available, such as Profibus, DeviceNet, Ethernet/IP,
6
CANopen etc.
13
A table for noting the positioning settings can be found in
chapter 8.3.1 Positioning Table.
Bit6
Index
0
0
0
6
1
45
Referenced target position: PCD[2]msb +
PCD[3]lsb (UU)
Type: PCD[1].11 (Absolute)/PCD[1].12 (Relative)
Sign: PCD[1].16 (negative)
Velocity: PCD[4] (RPM, on the encoder side)
Acceleration: PCD[5] (% of shortest ramp time in
parameter 32-81)
Deceleration: PCD[6] (% of shortest ramp time in
parameter 32-81)
Go to target position: PCD[1].1 (Start/Stop)
Position reached: PCD[1].2
MG33R302
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