The drive does not answer on Modbus. What should I check?

58.01 Protocol enable must be Modbus RTU, and changes to group 58 only apply after 58.06 Refresh settings or a reboot of the control unit. Check node address, baud rate and parity (default 1, 19.2 kbps, 8 EVEN 1) against ModbusCloud, then swap A and B. Termination must be on at both ends of the bus.

Values are huge or jump around strangely.

That is the word order. The template expects the default 58.34 Word order = LO-HI, low word first. If the drive was set to HI-LO, set it back to LO-HI and refresh with 58.06, or the two halves of every 32-bit value are swapped.

Why does a 16-bit tool show a different frequency?

The 16-bit register 400106 for 01.06 is scaled to the maximum frequency in 46.02, so its raw value means something else on every drive. The 32-bit register 420212 uses the fixed scale 100 = 1 Hz, which is what this template reads.

Several drives share one RS485 bus. Anything special?

Give each drive its own node address in 58.03 and the same baud rate and parity. TERM goes on at the two ends only, BIAS on at one device. The ModbusCloud Gateway must be the only Modbus master on that line.

Output power reads in the wrong unit.

Parameter 01.14 follows 96.16 Unit selection. With hp selected the value is in hp, not kW. Set the unit to kW on the drive or read the value as hp; the scale of 0.01 stays the same.

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Modbus RTU

ABB ACS580

ABB

General purpose frequency converter: frequency, current, power, torque, faults and run hours over Modbus RTU on RS485.

Overview

The ABB ACS580 is a general purpose frequency converter for pumps, fans, conveyors and compressors. Over Modbus RTU on its embedded fieldbus interface it reports output frequency, motor current, power, torque, voltages, inverter temperature and its fault and warning codes. This template follows the ABB ACS580 standard control program firmware manual (3AXD50000016097 Rev E) and reads 22 parameters as 32-bit registers of addressing mode 0, with fixed scaling. It covers motor values, energy counters, active and stored faults, status words and run-time counters. Default link on terminal X5: node address 1, 19200 baud, 8 data bits, even parity, 1 stop bit.

Key readings

Output frequency and motor speed
Motor current and output power
Motor torque
DC link and output voltage
Inverter temperature in percent of the fault limit
Tripping fault and active warning codes
Energy counters in GWh, MWh and kWh
Hours run and on-time counter

Use cases

Alert when Tripping Fault is not equal to 0 and look up the hex code, so a tripped pump or fan drive gets attention right away.
Track Inverter Temperature against its fault limit of 100 % to spot drives with a blocked heat sink or a hot cabinet.
Compare Output Frequency and Output Power across pump sets to find a pump that runs harder than its twin.
Report energy per drive from the Inverter Energy GWh, MWh and kWh counters.
Plan service from Hours Run and alert on Active Warning before a warning becomes a trip.

Installation

1Connect terminal block X5 (EFB) on the control unit to the RS485 A and B of your ModbusCloud Gateway with twisted pair cable. Set TERM to ON at both ends of the bus and BIAS to ON at one device.
2On the drive, set 58.01 Protocol enable to Modbus RTU and check 58.03 Node address 1, 58.04 Baud rate 19.2 kbps and 58.05 Parity 8 EVEN 1. Leave 58.33 at Mode 0 and 58.34 at LO-HI, then apply with 58.06 Communication control, Refresh settings.
3In ModbusCloud, add a Modbus device (RTU) with address 1, 19200 baud, 8 data bits, even parity and 1 stop bit, and import this template.
4Check the link: Output Frequency and Motor Current must match the values on the drive panel. If nothing answers, swap A and B and check 58.01.

Things to watch for

The drive does not answer on Modbus. What should I check?: 58.01 Protocol enable must be Modbus RTU, and changes to group 58 only apply after 58.06 Refresh settings or a reboot of the control unit. Check node address, baud rate and parity (default 1, 19.2 kbps, 8 EVEN 1) against ModbusCloud, then swap A and B. Termination must be on at both ends of the bus.
Values are huge or jump around strangely.: That is the word order. The template expects the default 58.34 Word order = LO-HI, low word first. If the drive was set to HI-LO, set it back to LO-HI and refresh with 58.06, or the two halves of every 32-bit value are swapped.
Why does a 16-bit tool show a different frequency?: The 16-bit register 400106 for 01.06 is scaled to the maximum frequency in 46.02, so its raw value means something else on every drive. The 32-bit register 420212 uses the fixed scale 100 = 1 Hz, which is what this template reads.
Several drives share one RS485 bus. Anything special?: Give each drive its own node address in 58.03 and the same baud rate and parity. TERM goes on at the two ends only, BIAS on at one device. The ModbusCloud Gateway must be the only Modbus master on that line.
Output power reads in the wrong unit.: Parameter 01.14 follows 96.16 Unit selection. With hp selected the value is in hp, not kW. Set the unit to kW on the drive or read the value as hp; the scale of 0.01 stays the same.

Registers (22)

22 read / 0 write

Name	Address	Function	Type	Unit	Access
Output Frequency Estimated drive output frequency, 0.01 Hz (FbEq32 100 = 1 Hz), range -500 to 500 Hz. ABB parameter 01.06 Output frequency.	•••	•••	•••	Hz	R
Motor Current Measured motor current, 0.01 A (FbEq32 100 = 1 A). ABB parameter 01.07 Motor current.	•••	•••	•••	A	R
Output Power Drive output power, 0.01 (FbEq32 100 = 1 unit). Unit is kW unless parameter 96.16 Unit selection is set to hp. ABB parameter 01.14 Output power.	•••	•••	•••	kW	R
Motor Torque Motor torque in percent of nominal motor torque, 0.1 % (FbEq32 10 = 1 %), range -1600 to 1600 %. ABB parameter 01.10 Motor torque.	•••	•••	•••	%	R
DC Voltage Measured DC link voltage, 0.01 V (FbEq32 100 = 1 V). ABB Technical Note 062: readable as 32-bit from firmware 2.15. ABB parameter 01.11 DC voltage.	•••	•••	•••	V	R
Output Voltage Calculated motor voltage in V AC (FbEq32 1 = 1 V). ABB parameter 01.13 Output voltage.	•••	•••	•••	V	R
Motor Speed Estimated motor speed, 0.01 rpm (FbEq32 100 = 1 rpm), range -30000 to 30000 rpm. ABB parameter 01.01 Motor speed used.	•••	•••	•••	rpm	R
Motor Speed Percent Motor speed in percent of synchronous speed, 0.01 % (FbEq32 100 = 1 %). ABB parameter 01.03 Motor speed %.	•••	•••	•••	%	R
Motor Current Percent Motor current in percent of nominal motor current, 0.1 % (FbEq32 10 = 1 %). ABB parameter 01.08 Motor current % of motor nom.	•••	•••	•••	%	R
Output Power Percent Output power in percent of nominal motor power, 0.01 % (FbEq32 100 = 1 %), range -300 to 300 %. ABB parameter 01.15 Output power % of motor nom.	•••	•••	•••	%	R
Inverter Temperature Estimated drive temperature in percent of the fault limit, 0.1 % (FbEq32 10 = 1 %). 0 % = 0 °C, 100 % = fault limit. ABB parameter 05.11 Inverter temperature.	•••	•••	•••	%	R
Inverter Energy GWh Energy through the drive in full GWh, 0 to 65535 (FbEq32 1 = 1 GWh). Total = GWh x 1000000 + MWh x 1000 + kWh. ABB parameter 01.18 Inverter GWh counter.	•••	•••	•••		R
Inverter Energy MWh Energy through the drive, MWh part, 0 to 1000 (FbEq32 1 = 1 MWh). Rolls over into the GWh counter. ABB parameter 01.19 Inverter MWh counter.	•••	•••	•••	MWh	R
Inverter Energy kWh Energy through the drive, kWh part, 0 to 1000 (FbEq32 1 = 1 kWh). Rolls over into the MWh counter. ABB parameter 01.20 Inverter kWh counter.	•••	•••	•••	kWh	R
Tripping Fault Code of the 1st active fault, the one that caused the trip, 0000h to FFFFh. 0 = no active fault. Look up the hex code in the fault list of the firmware manual. ABB parameter 04.01 Tripping fault.	•••	•••	•••		R
Active Warning Code of the 1st active warning, 0000h to FFFFh. 0 = no active warning. Look up the hex code in the warning list of the firmware manual. ABB parameter 04.06 Active warning 1.	•••	•••	•••		R
Latest Fault Code of the 1st stored (no longer active) fault, 0000h to FFFFh. ABB parameter 04.11 Latest fault.	•••	•••	•••		R
Main Status Word Main status word as a packed bit field (bit meanings in the parameter description of 06.11). ABB parameter 06.11 Main status word.	•••	•••	•••		R
Drive Status Word 1 Drive status word 1 as a packed bit field (bit meanings in the parameter description of 06.16). ABB parameter 06.16 Drive status word 1.	•••	•••	•••		R
Hours Run Motor run time in hours, 0.1 h (FbEq32 10 = 1 h): 24 x 05.02 plus the fraction of the current day. ABB parameter 05.03 Hours run.	•••	•••	•••	h	R
Run Time Days Motor run-time counter in full days, 0 to 65535 d. Runs while the inverter modulates. ABB parameter 05.02 Run-time counter.	•••	•••	•••	d	R
On Time Days On-time counter in full days, 0 to 65535 d. Runs while the drive is powered. ABB parameter 05.01 On-time counter.	•••	•••	•••	d	R

Loading registers…

Read the ABB ACS580 remotely

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