Delta Electronics IFD9506 - Explanation of Basic Registers (BR)

Code Indication How to correct
E1 Alarm 1 triggered Check Alarm Input Point 1
E2 Alarm 2 triggered Check Alarm Input Point 2
E3 Alarm 3 triggered Check Alarm Input Point 3
01 Incorrect MODBUS function Check if the Modbus instruction is correct.
02 Incorrect address Check if the Modbus instruction is correct.
03 Incorrect data Check if the Modbus instruction is correct.
04 Slave error
1. Check if IFD9506 and RS-485 is connected normally.
2. Check if the series transmission speed is consistent with
that of other nodes on the network.
0B No response from the station
1. Check if IFD9506 and RS-485 is connected normally.
2. Check if the series transmission speed is consistent with
that of other nodes on the network.