Carlo Gavazzi Motor Controller Soft Start/Stop 3-Ph. Centrifugal Pump, RSWT4090E0V111

Carlo Gavazzi Motor Controller Soft Start/Stop Centrifugal Pump, 3-Phase Control: 110-400VAC, Supply: Internally Supplied, Operational: 220-400VAC, 90A AC-53b @40ºC, Din or Panel Mount, Optimised Algorithm, Integrated Overload Protection, PTC Input, With Cooling Fan

RSWT is a 3-phase controlled soft starter for centrifugal pumps. RSWT controls all the three phases to achieve current balancing on all the phases so as to minimise vibrations during starting and stopping of centrifugal pumps. Through a dedicated self-learning algorithm, the RSWT manages to achieve a very smooth starting and stopping performance of centrifugal pumps with minimal settings resulting in a very easy to use solution. The RSWT up to 25A (11kW @ 400V) comes in a compact 45mm housing thus facilitating replacement of contactors and star/delta starters. The RSWT...V00/V01. Version requires just 1 knob setting for the soft-starting/soft-stopping time of the pump. No further adjustments are required in this case. The RSWT...V10/V11. Version includes an overload protection (Class 10) and soft-starting and soft-stopping times can be set independently for a finer pump control. In this case there are 3 knobs to adjust: start time, stop time and full load current (FLC) setting for the overload protection. RSWT is equipped with a number of diagnostic functions including phase sequence, over- and under voltage monitoring, locked rotor protection and also shorted SCR for improved pump protection in case of abnormal conditions. Soft starter status indication is provided by means of three LEDs (green, yellow, red) for supply, ramping, and alarm indication. Additionally, RSWT (45mm) is also equipped with two output relays for alarm (Normally closed - NC) and top of ramp (Normally Open - NO) indication. In case of the RSWT…V10/ V11. series, there is a 4th LED to select whether alarms follow an auto or manual recovery. In case of manual recovery of alarms, a push button is also available to reset the soft starter from alarm status. RSWT...32 up to RSWT...90 are also equipped with a run relay.

Note:

(1) Short circuit and overload protection are not provided with the RSWT...V00/RSWT...V01. version and must be procured separately.

(2) Short circuit protection is not provided with the RSWT...V10/ RSWT...V11. versions and must be procured separately.

General Characteristic

• Optimised algorithm for centrifugal pumps
• Simple User Interface
• 3-phase controlled
• Internally bypassed
• Multi voltage operation
• Integrated overload protection**
• Relay Outputs for Alarm/Top of Ramp/Run*
• RSWT40 models: Internally supplied
• RSWT60 models: 24VAC/DC (“F” version) and 100-240VAC (“G” version) control/supply options
• Auto- or manual reset of alarms**
• Remote reset function**

* For RSWT..32.. - RSWT..90.. models only

** For RSWT..V10/ V110 / V111 models only