Errors And Possible Causes - WEG MIW-02 Guía Rápida De Instalación Y Uso

MIW-02
Connector RJ-11
1 2 3 4 5 6
1
2
3
4
5
6

7. ERRORS AND POSSIBLE CAUSES

Table 5: Errors and possible causes.
Entrada de señales de encoder
Problems
Power LED OFF
No communication at WEG Bus
Random indications of serial
errors in WEG Bus
RX
GND
TX
GND
RTS
+5V
Figure 9: Cable for connection to RJ-11 Co nector
Solutions
Without power supply;
●
Check the cable of the RS-232, see Item 6.1;
●
Check the power supply of WEG equipment.
●
LED of the serial interface does not flashes:
●
- Check if the communication has been established;
- Check the serial communication cables, RS-232 or RS-485.
Check all serial cables in WEG Bus network and their respective shields;
●
Check if all grounding points are grounded correctly;
●
Check if only the terminations of WEG Bus network are connected with
●
terminating resistors and if are connected;
Check all RS-232 connection cables that must be hold as short as
●
possible and that must be laid separately from all other cables that are
not intended for serial communication, see Item 6.1.
Connector RJ-11
Equipment WEG
1 2 3 4 5 6
6 TX
5 GND
4 RX
3 GND
2 RTS
1 +5V
n
7