BENSHAW RSi GM2 Series, Инструкция по эксплуатации

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Learning Basic Features
59
Lea
rni
890054-00-00
GM2 Series VFD
Setting the Frequency Reference using RS-485 Communication
Set parameter Frq (Frequency reference source) 6 (Int 485). Control the inverter with upper-level
controllers (PCs or PLCs) via RS-485 communications using the (S+/S-) input terminals of the
control board. Refer to
7 RS-485 Communication Features on page 179 for more details.
RS-485 Communication Settings
Group Code Name Setting Setting Range Unit
Operation Frq Frequency reference source 6 Int 485 0 – 8 -
CM
01
Built-in communication
inverter ID
- 1 1 – 250 -
02
Built-in communication
protocol
0 ModBus RTU
0 – 2
-
1 Reserved
2 LS INV 485
03 Built-in communication speed 3 9600 bps 0 – 7 -
04
Built-in communication frame
setting
0 D8/PN/S1
0 – 3 -
1 D8/PN/S2
2 D8/PE/S1
3 D8/PO/S1
Frequency Hold by Digital Input
When using an analog input as the frequency reference, you can apply a hold of the output
frequency at any point. Set a digital input to 21 (Analog Hold). When the input is activated, the
output frequency will be maintained (held constant) until the input is de-activated.
Group Code Name Setting
Setting
Range
Unit
Operation Frq
Frequency reference
source
2 V1
0
–8
-
4 V0
5 I2
In 65~69
Px terminal setting
options
21
Analog
Hold
0
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