HP Anab EQ5 - Manual (Page 119)

EQ5 AC Drive Operations Manual
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TECO – Westinghouse Motor Company Serial Communications Modbus 113
8-4-5 Inverter Function Code Access
All of the inverter function codes are accessible through the RS-485 serial interface. Inverter
function codes are mapped to RTU holding registers. An inverter function code RTU address is
2 bytes in length. The high byte corresponds to a code that represents the inverter parameter
sort (F–M). The low byte corresponds to the inverter parameter number within the sort (0 -99).
high byte low byte
inverter parameter sort code inverter parameter number
Code Sort Name Code Sort Name
0 F Basic function 5 A Motor 2 function
1 E Terminal function 6 o Option function
2 C Control function 7 S Command/function data
3 P Motor 1 function 8 M Monitor data
4 H High level function
For example, inverter function code M11 the output current, is addressed as RTU parameter
number 080B hexadecimal or 2059 decimal.
8-4-6 Command and Monitor Data Registers
The command and monitor function codes are used to control the operation of the inverter and
monitor the status variables through the serial interface. The command and monitor function
codes are not accessible from the inverter keypad interface. Inverter parameter H30 and digital
input signal LE must be enabled to operate the inverter from the Modbus interface. If LE is not
assigned to a digital input (X1-X9), the signal will default to ON.
Frequency Setting Registers:
Address Code Name Unit Variable Range
Min.
Unit
Read/
Write
Data
Format
1793 S01 Frequency command
- -20000–20000 (max.
frequency at ± 20000)
1 R/W 2
1797 S05 Frequency command Hz 0.00–120.00 0.01 R/W 5
Notes: 1) If both S01 and S05 are set, the inverter will ignore the setting of S05.
2) A data setting that exceeds the setting range is possible, but the actual action will be limited
by the inverter configuration.
Operation command data Registers:
Address Code Name Unit Variable Range
Min.
Unit
Read/
Write
Data
Format
1798 S06 Operation command - Refer to the data format [14] - R/W 14
1799 S07 Universal Do - Refer to the data format [15] - R/W 15
1804 S12 Universal Ao -
-20000–20000 (100% output
at ± 20000 )
1 R/W 2
Notes: 1) Since X1–X9 are configurable input commands, it is necessary to set the functions by
E01–E09.
2)The alarm reset is executed, when RST signal changes from ON to OFF even if there are no
alarms.
3) Universal Do is a function that utilizes the inverter’s digital outputs via communication.