ABB ACS550
All your energy saving options covered from the start

When you need simplicity and intelligence in one self-contained solution the ACS550 covers a wide range of options. Ideal for variable and constant torque applications from pumps and fans to conveyors and mixers as well as many other variable and constant torque applications. Enjoy plug and play convenience right from the start. No customizing or special product engineering required. Monitor your savings easily with the built-in counters, which display energy savings in kilowatt hours, carbon dioxide emissions or local currencies.


  • 0.75 to 355 kW/1 to 500 Hp
  • Vector control
  • Built-in EMC filter and Modbus fieldbus interface
  • Swinging choke for superior harmonic reduction
  • Coated boards for harsh environments
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Mains Connection
Voltage and power range 3-phase, 380 to 480 V, +10/-15%, 0.75 – 355 kW
3-phase, 200 to 240 V, +10/-15%, 0.75 – 75 kW
Auto-identification of input line
Frequency 48 to 63 Hz
Power factor 0.98

 

Motor Connection
Voltage 3-phase, from 0 to USUPPLY
Frequency 0 to 500 Hz
Continuous loading capability
(constant torque at a max ambient temperature of 40oC)
Rated output current I2
Overload capacity
(at a max. ambient temperature of 40oC)
At normal use 1.1 x I2N
for 1 minute every 10 minutes At heavy use 1.5 x I2hd
for 1 minute every 10 minutes Always 1.8 x I2hd for 2
seconds every 60 seconds
Switching frequency
Standard Selectable
Default 4 kHz
0.75 – 110 kW 1 kHz, 4 kHz, 8 kHz, 12 kHz
up to 355 kW 1 kHz, 4 kHz
Acceleration time 0.1 to 1800 s
Deceleration time 0.1 to 1800 s
Speed controlStatic accuracy
Dynamic accuracy
20% of motor nominal slip
< 1% s with 100% torque step
Torque Control
Torque step rise time
Non-linearity
<10 ms with nominal torque
± 5% with nominal torque
Environmental Limits
Ambient temperature-15 to 40oC
40 to 50oC
No frost allowed
fswitch 4 kHz, derating
please contact us
Altitude
Output current
Rated current available at 0 to 1000 m reduced by 1% per 100
m over 1000 m to 2000 m.
Relative humidity Lower that 95% (without condensation)
Protection class IP 21 or IP 54
Enclosure colour NCS 1502-Y, RAL 9002, PMS 420 C
Contamination levelsTransportationStorageOperation IEC 721-3-3
No conductive dust allowed
Class 1C2 (chemical gases)
Class 1S2 (solid particles)
Class 2C2 (chemical gases)
Class 2S2 (solid particles)
Class 3C2 (chemical gases)
Class 3S2 (solid particles)
Programmable Control Connections
Two analogue inputsVoltage signal
Current signal
Potentiometer reference value
Maximum delay
Resolution
Accuracy
0 (2) to 10 V, Rin > 312 k© single ended
0 (4) to 20 mA, Rin = 100© single ended
10 V ±2% max. 10 mA, R < 10 k©
12 … 32 ms
0.1%
±1%
Two analogue outputs 0 (4) to 20 mA, load < 500 ©
Auxiliary voltage 24 V DC ±10%, max. 250 mA
Six digital inputsInput impedance
Maximum delay
12 V .. 24 V DC with internal or external supply, PNP and NPN2.4 k ©
5 ms ± 1ms
Three relay outputsMaximum switching voltage
Maximum switching current
Maximum continuous current
250 V AC / 30 V DC
6 A / 30 V DC; 1500 V A / 230 V AC
2 A rms
Serial communication
RS 485
Modbus protocol
Protection Limits
Overvoltage trip limitsRunning V DC
Start inhibit DC
842 (corr. to 595 V input)
661 (corr to 380 – 415 V input)
765 (corr. to 440 – 480 V input)
Undervoltage trip limits
Running V DC
333 (corr. to 247 V input)
436 (corr. to 380 – 415 V input)
505 (corr. to 440 – 480 V input)
Product Compliance
Low Voltage Directive 73 / 23 / EEC with supplements
Machinery Directive 98 / 37 / EC
EMC Directive 89 / 336 / EEC with supplements
Quality assurance system ISO 9001 and environmental system ISO 14001 CE, UL and cUL approvals
EMC (according to EN61800-3)
1st environment restricted distribution for frame sizes R3, R4 with 30 m motor cables and for frame sizes R1, R2, R5, R6 with 100 m motor cables
2nd environment unrestricted distribution with 100 m cable as standard
For longer motor cable lengths, external EMC filters are available on request