Soft Starter header

AuCom Electronics IMS2 Soft Starter


AuCom IMS2 soft starters are a total motor starting solution, combining high-level functionality with flexibility and ease of use. Whether you need a simple solution to starting or stopping your motor, or a comprehensive protection system for your motor and installation, the AuCom IMS2 can be configured to suit.

The AuCom IMS2 offers a choice of soft start and soft stop profiles to ensure optimum control for all load types. The unique torque control system gives more linear acceleration than standard constant current, and a special pump control function reduces water hammer. The AuCom IMS2 also incorporates advanced motor and load protection features, ensuring safer operation for your application. With extensive input/output and integration options, the AuCom IMS2 minimises installation time and costs and ensures that motors can be operated with confidence.

In simple installations, set up is very quick as only one parameter needs to be set before the starter is ready to use. For advanced applications, an extensive range of functions allows you to use the AuCom IMS2 to suit nearly all motor starting and control requirements.

AuCom IMS2 soft starters can be connected in in-line or inside delta configuration. Inside delta connection allows control of motors 50% larger than the standard rating, and also allows replacement of star/delta starters without changing existing motor wiring. Power connections on 302 ~ 1574 A models can be configured for any combination of top or bottom input and output, making the AuCom IMS2 ideal for integration into existing installations.






Mains Voltage  
3 x 200 VAC ~ 525 VAC (in-line/3 wire connection)
3 x 200 VAC ~ 440 VAC (inside delta/6 wire connection)
3 x 200 VAC ~ 690 VAC (in-line/3 wire connection)
3 x 200 VAC ~ 440 VAC (inside delta/6 wire connection)
Control Voltage  
    IMS2xxxx-xx-C12 110 VAC or 230 VAC (+10%/-15%)
    IMS2xxxx-xx-C24 230 VAC or 400 VAC (+10%/-15%)
    IMS2xxxx-xx-C45 460 VAC or 575 VAC (+10%/-15%)
Mains frequency  
    at start 50 Hz (+/- 2 Hz) or 60 Hz (+/- 2 Hz)
    during start > 45 Hz (50 Hz supply) or > 55 Hz (60 Hz supply)
    during run > 48 Hz (50 Hz supply) or > 58 Hz (60 Hz supply)
Control Inputs  
Start (Terminals C23, C24) Active 24 VDC, 8 mA approx
Stop (Terminals C31, C32) Active 24 VDC, 8 mA approx
Reset (Terminals C41, C42) Active 24 VDC, 8 mA approx
Programmable Input A (Terminals C53, C54) Active 24 VDC, 8 mA approx
Relay Outputs 5 A @ 30 VDC or 250 VAC resistive
  360 VA inductive
Run Output (Terminals 23, 24) Normally Open
Programmable Relay Output A (Terminals 13, 14) Normally Open
Programmable Relay Output B (Terminals 33, 34) Normally Open
Programmable Relay Output C (Terminals 41, 42, 44) Changeover
Analogue Output (Terminals B10, B11) 4-20 mA (maximum burden 500 W)
Enclosure rating
    IMS2xxxx-xx-xxx-xx-E0 IP00 (open chassis)
    IMS2xxxx-xx-xxx-xx-E4 IP42
    IMS2xxxx-xx-xxx-xx-E5 IP54
Rated short circuit current IMS20018 ~ IMS20897 42 kA
Rated insulation voltage 690 V
Surges 2 kV line to earth, 1 kV line to line
Fast transients 2 kV / 5 kHz
Form designation Form 1
Electrostatic discharge 4 kV contact discharge, 8 kV air discharge
Equipment class (EMC) Class A
Radio-frequency electromagnetic field 0.15 MHz – 80 MHz: 140 dBµV
  80 MHz – 1 GHz: 10 V/m
Pollution degree Pollution Degree 3
Operating temperatures - 5 °C ~ + 60 °C
Relative humidity 5% ~ 95% (max non-condensing)
Standards Approvals  
CE IEC 60947-4-2
UL and C-UL UL 508
C-tick IEC 60947-4-2

User Manual

IMS2 User Manual