GD350A series high-performance multifunction VFD
-91-
There is one input mode for auxiliary reference channel, namely terminal UP/DOWN switch input. By
setting function codes, you can enable the corresponding reference mode and the impact made on
the VFD frequency reference by this reference mode.
The actual reference of VFD is comprised of the main reference channel and auxiliary reference
channel.
0
1
2
3
4
5
6
7
8
9
10
11
Keypad
AI
1
PROFIBUS
\CANopen
MODBUS
PID
Multi
-step speed
Simple
PLC
HDI
AI
3
AI
2
Ethernet
UP
/DOWN terminal
P08
.44
tens setup
(frequency control
selection
)
P17
.14
Digital
adjustment
value of keypad
P08
.44
ones
(UP
/DOWN terminal control setting
)
0
P00
.03
1
A
frequency command
(max
. output
frequency
)
0
UP
/DOWN enable
0
Valid
Invalid
Valid
Invalid
Terminal function
12
Clear frequency
increase
/decrease setup
Terminal function
33
Clear frequency
increase
/decrease setup
temporarily
0
0
1
2
3
4
5
6
7
8
9
10
11
Keypad
AI
1
PROFIBUS
\CANopen
MODBUS
PID
Multi
-step speed
Simple
PLC
HDI
A
AI
3
AI
2
Ethernet
P00
.06
(A frequency command
selection
)
P00
.07
(B frequency command
selection
)
P00
.09
(combination mode of setup
source
)
P00
.05
(lower limit of running frequency
)
P17
.00
Set
frequency
A
B
A+
B
A-
B
Max
(
A
,
B
)
M
in
(
A
,
B
)
+
+
P17
.02
Ramps reference
frequency
P00
.08
(B frequency command reference
object selection
)
Frequency set by keypad
0
1
2
3
4
5
P00
.10
P00
.10
Frequency set by keypad
P00
.04
(upper limit of running
frequency
)
Pulse string AB
HDIB
EtherCat
/Profinet
PLC
card
Pulse string AB
HDIB
EtherCat
/Profinet
PLC
card
The VFD supports switchover between different reference channels, and the rules for channel
switchover are shown in the following.