Motor Controllers AC Variable Frequency Drives Type VariFlex
3
RVLF
Specications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 13/12/2017 217
2.6. Electronic Isolation
2.7. Data Transfer Rate and Distance
The following electrical isolation should be provided for the RV-PDP module:
The following electrical isolation should be provided for the RV-PDP module:
Note: Can’t use RVLF user 24V to connect RV-PDP input, otherwise RV-PDP is no islanded
with RVLF.
Distance between stations when
using type A cable to IEC 61158:
The cable parameters are as follows:
RV-PDP module automatically detects the baud rate in the PROFIBUS-DP network after it is
power on. However, this requires that at least one master station sends valid telegrams in the
network.
The following transfer rates are supported: 9.6Kbit/s to 6000Kbit/s.
Two types of bus cable are specified in IEC 61158. Cable type B should no longer be used with
new applications because it has bee discontinued. Cable type A allows all transfer rates up to
12000Kbit/s to be used. Cables for burial in the ground, festoon suspension and drum cables
are also available.
Power
Supply
INV
RS485
CPU
Probus
model
Photocoupler
DC/DC
VCC
+5V
A+B
ACAC
Input
Voltage
vonverter
Probus
Net
0V
+24V
+24V 0V
Parameter Cable type A
Surge impedance in Ω
135~165Ω
(at 3~20MHz)
Effective capacitance <30 (pF/m)
Loop resistance <110 (Ω/Km)
Core diameter >0.64 (mm)
Core cross section >0.34 (mm
2
)
Baud rate (Kbit/s)
Max. cable length
type A cable (m)
9.6 1200
19.2 1200
93.75 1200
187.5 1000
500 400
1500 200
3000 100
6000 100
To Next Page
Loading...
Need help?
General