EURONORM JI500, Руководство пользователя

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Hub van Doorneweg 8 • 2171 KZ Sassenheim – NL • T +31(0)252 228850 • F +31(0)252 228235 • E sales@euronorm.nl • I euronormdrives.com Hub van Doorneweg 8 • 2171 KZ Sassenheim – NL • T +31(0)252 228850 • F +31(0)252 228235 • E sales@euronorm.nl • I euronormdrives.com 74 75
NEURN030000_220_A NEURN030000_220_A
Multiple Applications
In reality, multi-machine applications, there are two connections
The first inverter and the last inverter short the terminal resistor on the control board to be active.
As shown in Figure I-4
RS232 cable 15m at the longest
T +
T -
485-485+
485- 485+
485- 485+
1#
2#
N #
RS232 to RS485
converter
Frequency
inverter
Shielded twisted pair
PE
PE
PE
Frequency
inverter
Frequency
inverter
Figure I-4
The two longest distance inverter from the device shall short the terminal resistor on the control board to be active.
As shown in Figure I-5:
RS232 to RS485 converter
T +
T -
485-
485+
485-
485+
485-
485+
1#
2#
8#
RS232 cable 15m
at the longest
485-
485+
5#
Frequency
inverter
Frequency
inverter
Frequency
inverter
Frequency inverter
Figure I-5
Multi-machine connection should try to use a shielded cable. The basic parameters such as baud rate and data bit of all
of the devices on RS485 line must be the same, address must be different.
NOTE: The terminal resistor of 485 decides valid or invalid through the control board (No. 485) jumper