9.3 Example: Status Word Telegram using Standard Telegram 1/PPO3
This example shows how the control word telegram relates to the PLC and the frequency converter, using FC Control
Profile.
The control word telegram is sent from the frequency converter to the controller. Standard Telegram 1 is used in the
example to demonstrate the full range of modules. All the values shown are arbitrary, and are provided for demonstration
purposes only.
0
1
2
3
STW
MAV
PCD
PCD
0F
07
20
00
PIW:
256
258
260
262
STW
MAV
Bit no.:
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
1
0
0
0
1
1
1
1
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
F
0
7
2
0
0
0
Table 9.5 PCD
Table 9.5
indicates the bits contained within the status word, and how they are presented as process data in Standard
Telegram 1 for this example.
Table 9.6
indicates which bit functions, and which corresponding bit values are active for this example.
Bit
Bit value=0
Bit value=1
Bit value
00
Control not ready
Control ready
1
7
01
Drive not ready
Drive ready
1
02
Coasting
Enable
1
03
No error
Trip
0
04
No error
Error (no trip)
0
0
05
Reserved
-
0
06
No error
Triplock
0
07
No warning
Warning
0
08
Speed reference
Speed#=#reference
1
F
09
Local operation
Bus control
1
10
Outside frequency range
Within frequency range
1
11
No operation
In operation
1
12
Drive ok
Stopped, autostart
0
0
13
Voltage ok
Voltage exceeded
0
14
Torque ok
Torque exceeded
0
15
Timers ok
Timers exceeded
0
Function active
Function inactive
Table 9.6 Status Word Telegram using Standard Telegram 1/PPO3
Application Examples
Operating Instructions
MG90U302
Danfoss A/S © Rev. 2014-02-27 All rights reserved.
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Summary of Contents for VLT PROFINET MCA 120
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