Operating instructions

7.3. E.g.: Status Word Telegram using PPO Type
This example shows how the control word telegram relates to the PLC and the frequency con-
verter, using FC Control Profile.
The control word telegram is sent from the PLC to the frequency converter. PPO Type 3 is used
in the example in order to demonstrate the full range of modules. All the values shown are arbi-
trary, and are provided for the purposes of demonstration only.
PCV PCD
1 2 3 4 5 6
PCA IND PVA CTW MRV PCD PCD PCD PCD
0F 07 20 00
PIW: 256
258 260 262 264 266 268 270 272 274
master slave→
STW MAV
Bit no.: 15 14 13 12
11 10 9 8 76543210
0 0 0 0 0 1 0 0 0 1 1 1 1 1 0 0
0
4 7 C
The table above indicates the bits contained within the statusword, and how they are presented
as process data in PPO type 3 for this example.
The following table 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
7. Application Examples VLT
®
Profibus
86 MG.33.C4.02 - VLT
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is a registered Danfoss trademark
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