Communication extension card
-11-
Response packet (VFD -> master station)
SW: The first word in a PZD response packet is a VFD SW.
describes the VFD SWs.
Table 2-7 Astraada DRV-28 series
VFD
SWs
Bit
Name
Value
State to be entered/description
0–7
Running state
1
In forward running
2
In reverse running
3
Stopped
4
Faulty
5
POFF
6
In pre-excitation
8
Bus voltage established
1
Ready to run
0
Not ready to run
9–
10
Motor group feedback
0
Motor 1
1
Motor 2
11
Motor type feedback
1
Synchronous motor
0
Asynchronous motor
12
Overload pre-alarm
feedback
1
Overload pre-alarm generated
0
No overload pre-alarm generated
13
Run/Stop mode
0
Keypad-based control
1
Terminal-based control
14
2
Communication-based control
3
Reserved
15
Heartbeat feedback
1
Heartbeat feedback
0
No heartbeat feedback
Actual value (ACT): The second to twelfth words in a PZD task packet are the main actual values. The main
actual frequency values are provided by the main actual value signal source.
Table 2-8 Actual state values of Astraada DRV-28 series
VFD
Function
code
Word
Value range
Default
value
P15.13
Transmitted PZD2 0: Invalid
1: Running frequency (×100, Hz)
2: Set frequency (×100, Hz)
3: Bus voltage (×10, V)
4: Output voltage (×1, V)
5: Output current (×10, A)
6: Actual output torque (×10, %)
7: Actual output
power (×10, %)
0
P15.14
Transmitted PZD3
0
P15.15
Transmitted PZD4
0
P15.16
Transmitted PZD5
0
P15.17
Transmitted PZD6
0
P15.18
Transmitted PZD7
0
P15.19
Transmitted PZD8
0
P15.20
Transmitted PZD9
0