Datasheet

ManualsBrandsCarlo Gavazzi ManualsAutomationSoft Starter 25A 5.5 kW @ 220 ... 240 VAC/11 kW @ 380 ... 415 VAC 110V 400V

Centrifugal pump softstarter

Operational Voltage

Operational Current

Control Voltage

Supply Voltage

Options

Overload protection

0: No overload protection

1: Integrated Overload protection

PTC input

0: No PTC input

Note: above ordering code applies to RSWT models up to 25A

Specifications are subject to change without notice (07.07.2015) 1

Ordering Code

RSWT 40 16 E 0 V 1 0

Centrifugal pump softstarter

Operational Voltage

Operational Current

Control Voltage

Supply Voltage

Options

Overload protection

0: No overload protection

1: Integrated Overload protection

PTC input

1: PTC input

Cooling method

0: Natural convection

1: Cooling fan

Note: above ordering code applies to RSWT models from 32A - 90A

Ordering Code

RSWT 40 32 E 0 V 0 1 1

• 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

Product Description

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.

Soft Starter

Centrifugal Pump Soft Starter Series

Type RSWT

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.

Summary of content (25 pages)

PAGE 1
Soft Starter Centrifugal Pump Soft Starter Series Type RSWT • 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..
PAGE 2
RSWT Type Selection Type Operational Voltage Ue Rated Operational Current Ie @ 40oC Control Voltage Uc Supply Voltage Us Options RSWT: Centrifugal pump soft starter 40: 220 – 400 VAC +10% -15% 12: 12 Arms 16: 16 Arms 25: 25 Arms 32: 32 Arms 37: 37 Arms 45: 45 Arms 55: 55 Arms 70: 70 Arms 90: 90 Arms E: 110 – 400 VAC +10% -15% 0: Internally supplied V00, V010: No overload V011: No overload + Fan V10, V110: Overload protection V111: Overload protection + Fan 60: 220 – 600 VAC +10% -15% Type [ R
PAGE 3
RSWT Selection Guide Operational Voltage Ue Control Voltage Uc Supply Voltage Us Options Housing 1 (45mm) Rated Operational current Ie 12Arms 16Arms 25Arms No options RSWT4012E0V00 RSWT4016E0V00 RSWT4025E0V00 Overload Protection RSWT4012E0V10 RSWT4016E0V10 RSWT4025E0V10 No options RSWT4012F0V00 RSWT4016F0V00 RSWT4025F0V00 Overload Protection RSWT4012F0V10 RSWT4016F0V10 RSWT4025F0V10 110 - 400VAC 220 - 400 VAC Internally Supplied 24VAC/DC 220 - 600 VAC 24VAC/DC 24VAC/DC Overloa
PAGE 4
RSWT General Specifications Ramp-up time Ramp-down time RSWT...V00/ V010/ V011 RSWT...V10/ V110/ V111 Full load current (FLC) range setting RSWT..12..V10 RSWT..16..V10 RSWT..25..V10 RSWT..32..V110 RSWT..37..V110 RSWT..45..V111 RSWT..55..V111 RSWT..70..V111 RSWT..90..V111 Status Indication LEDs Power Supply ON Ramping/Bypass Alarm Auto/ Manual reset of alarms 1…20s 1...20s 0...20s Green LED Yellow LED Red LED Yellow LED (for RSWT...V10/V110/V111 models only) 6 ...12 10 ...16 13 ... 25 20 ... 32 25 ...
PAGE 5
RSWT Output Specifications RSWT..12…. Overload cycle acc. to EN/IEC 60947-4-2 @ 40˚C surrounding temperature RSWT..16…. AC53b:4-6:174 RSWT..25…. RSWT..32…. RSWT..37…. AC53b: 3.5-5:175 AC53b: 4 - 6:174 RSWT40: AC53b: 3.
PAGE 6
RSWT Dimensions RSWT..12.., RSWT..16.. models RSWT 45, 3-Phase AC Pump Softstarter V00 RSWT..25.. models RSWT 45, 3-Phase AC Pump Softstarter V10 6 Specifications are subject to change without notice (07.07.
PAGE 7
RSWT Dimensions RSWT..32V..10 to RSWT..37V..... models (DIN rail mount) 81.5mm (3.21”) 2mm (0.08”) 121mm (4.76”) 35mmm DIN Rail - EN50022 170mm (6.7”) 170mm (6.7”) Earth Screw 180mm (7.08”) 75mm (2.95”) RSWT..45V... to RSWT..55V..... models (Panel mount) 81.5mm (3.21”) 2mm (0.08”) 121mm (4.76”) 170mm (6.7”) 221mm (8.70”) 206mm (8.11”) 96.5mm (3.8”) M5 Earth Screw 75mm (2.95”) Specifications are subject to change without notice (07.07.2015) 177mm (6.
PAGE 8
RSWT Dimensions RSWT..70... - RSWT..90.. (Panel mount) 81.5mm [3.21”] 2mm [0.08”] 121mm [4.76”] 50mm Finger Guards 7mm [0.28”] 100mm [3.94”] 80mm [3.15”] 50mm 188mm [7.40”] 170mm [6.70”] 221mm [8.70”] 206mm [8.11”] 270mm 96.5mm [3.80”] M5 Earth Screw 7mm [0.28”] 100mm [3.94”] 120mm [4.72”] 177mm [6.97”] Note: Finger guards shown in the image are optional accessories (ordering code: RFCGx6) 8 Specifications are subject to change without notice (07.07.
PAGE 9
RSWT Dimensions RSWT..70... - RSWT..90.. models (DIN rail mount) 2mm [0.08”] 81.5mm [3.21”] 121mm [4.76”] 170mm [6.7”] M5 Earth Screw 205mm [8.07”] 35mm DIN RAIL EN50022 120mm [4.72”] Specifications are subject to change without notice (07.07.2015) 180mm [7.
PAGE 10
RSWT Connection Specifications Line conductors 1 L1, 3 L2, 5 L3, 2 T1, 4 T2, 6 T3 Acc. to EN60947-1 Flexible Rigid (solid or stranded) Flexible with end sleeve (ferrule) UL/cUL rated data Rigid (stranded) Rigid (solid) Rigid (solid or stranded) Terminal screws Max. tightening torque Stripping length Secondary conductors A1, A2 Acc. to EN60998 Flexible Rigid (solid or stranded) Flexible with end sleeve (ferrule) UL/cUL rated data Rigid (solid or stranded) Terminal screws Max.
PAGE 11
RSWT Terminal Markings RSWT40...V00 1L1, 3L2, 5L3: 2T1, 4T2, 6T3: A1, A2: 11, 12: 21, 24: RSWT40...V10 Line connections Load connections Control voltage Alarm indication (Normally Closed, NC) Top of Ramp indication (Normally Open, NO) RSWT60...
PAGE 12
RSWT Terminal Markings RSWT..32.V01. to RSWT..90.V01. (without Overload Protection) 1L1, 3L2, 5L3: 2T1, 4T2, 6T3: A1, A2: 11, 12, 14: 21, 22, 24: 31, 34: F1+, F1-: P1, P2: ST*: Line connections Load connections Control voltage (Supply voltage for RSWT60 models) Alarm indication (NO, NC, changeover) Top of Ramp indication (NO, NC, changeover) Run relay indication(NO, normally open) Cooling fan connection** PTC connection Control voltage (start signal) * only for RSWT60.. models ** only for RSWT..
PAGE 13
RSWT Wiring Diagrams Valid up to 400VAC RSWT40...F0V.. RSWT40...E0V.. RSWT40...E0V.. Specifications are subject to change without notice (07.07.
PAGE 14
RSWT Wiring Diagrams (cont.) IMPORTANT: L1, L2, L3 should already be connected when A1, A2 and ST signals are applied. A minimum delay of 200ms should be allowed between switching of L1, L2, L3 and A1, A2 and ST respectively. If L1, L2 and L3 are not present, when A1, A2 is applied the “Line voltage out of range alarm will be triggered”. The alarm will automatically recover if L1, L2, L3 are within operational range for ≥ 1 sec (on power up only). RSWT60...FFV../ RSWT60...GG.. Note 1: For RSWT60..FFV...
PAGE 15
RSWT Auxiliary Relays Rated operational voltage Rated insulation voltage Dielectric withstand voltage (Coil to contacts) Overvoltage category Number of output relays Overload/Fault Terminal markings Type of control circuit Number of contacts Type of contacts Type of current Rated operational current Bypassed (Top of ramp) Terminal markings Type of control circuit Number of contacts Type of contacts Type of current Rated operational current Run Terminal markings Type of control circuit Number of contacts T
PAGE 16
RSWT Soft Starter Setting Procedure RSWT...V00/ V010/ V011 RSWT...V10/ V110/ V111 1. Ramp-up 1. Ramp-up / Ramp-down 2. Ramp-down 5. Manual/Auto reset of alarms (LED indication) 3. Full load current (FLC) [for overload protection] 4. Test/Reset button The RSWT…V00/ V010/ V011 soft starter series features just 1 knob setting for start/stop time of the pump. Step 1: Set the knob to the desired starting time as required for the specific application.
PAGE 17
RSWT Mode of Operation Starting Method The RSWT series of soft starters is based on a current ramp starting methodology to limit the pump starting current and, at the same time minimise water hammering effects. Additionally, the RSWT is equipped with an intelligent and self-learning algorithm to adjust the starting torque automatically at every pump start. The algorithm makes use of the internal current and voltage measurement circuits to detect when the pump starts to rotate.
PAGE 18
RSWT Mode of Operation Alarms description The RSWT includes a number of diagnostic and protection features each of which is signalled through a flashing sequence on the red LED. For the RSWT…V00/RSWT....V01. versions, all alarms follow an auto-recovery routine (except for Wrong phase sequence, Shorted SCR and Internal fault alarms) as described in the datasheet. For the RSWT…V10/RSWT....V11. the user can select whether to have an auto-reset or manual reset of of alarms.
PAGE 19
RSWT Mode of Operation Excess ramp-up time (6 flashes) During ramping-up state, if the RSWT detects that the starting current is equal to the maximum starting current allowed (3.5xIe for RSWT..V00/RSWT....V01. or 3.5xFLC setting for RSWT..V10/RSWT....V11. models) for 80% of the ramp-up time setting, the RSWT will trigger this alarm. Over-temperature (7 flashes) The RSWT soft starter constantly measures the heatsink and thyristors (SCRs) temperature.
PAGE 20
RSWT Mode of Operation Overload Trip Curves 10000s 1000s Time to trip 100s HOT 10s COLD 1s 0.1s 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Times FLC 5.5 6.0 6.5 7.0 7.5 8.0 Supply voltage unbalance (9 flashes) The unit measures the voltages on all the three phases and if there is a difference of more than 20% for >=5sec between any of the phases, the RSWT triggers the voltage unbalance alarm to prevent motor damage.
PAGE 21
RSWT LED Indications, Relay Contact Position Green LED (Supply) Yellow LED (Ramp/Bypass) Red LED (Alarm) ON Flashing OFF ON ON OFF ON OFF OFF Yellow LED (MANUAL) 1,2 Alarm (11, 12, 14) OFF/ON 11, 12 OFF/ON 11, 12 OFF/ON 11, 12 OFF Run (31, 34) 21, 22 Closed Ramping State Open Alarm State – Auto-recovery of alarms 21, 22 21, 24 21, 22 Open Closed OFF Flashing ON OFF Flashing ON 11, 14 21, 22 Open ON OFF ON OFF/ON 11, 14 21, 22 Open 3,4 Condition Bypass (21, 2
PAGE 22
RSWT Short Circuit Protection Protection Co-ordination, Type 1 vs Type 2: Type 1 protection implies that after a short circuit, the device under test will no longer be in a functioning state. In Type 2 co-ordination the device under test will still be functional after the short circuit. In both cases, however the short circuit has to be interrupted. The fuse between enclosure and supply shall not open. The door or cover of the enclosure shall not be blown open.
PAGE 23
RSWT Short Circuit Protection (cont.) Co-ordination Type 2 (IEC/EN 60947-4-2) – Semiconductor Fuses Part No. Max. Fuse Size [A] Model No. Current [kA] Max. Voltage [VAC] RSWT..12.V…. 35 A70 QS 35-4 5 600 RSWT..16.V…. 35 A70 QS 35-4 5 600 RSWT..25.V…. 50 A70 QS 50-4 5 600 Current /Power Ratings: kW (IEC 60947-4-2) & HP (UL508) @ 40oC Part No. IEC Rated Current 220 – 240 VAC 380 – 415 VAC 440 – 480 VAC 550 – 600 VAC RSWT4012.…. 12 AAC 3 kW / 3 HP 5.5 kW / 5 HP - - RSWT4016.….
PAGE 24
RSWT Accessories RFCG (Finger Guards) Ordering Key RFCG X6 Finger/ cable guards 6 pcs per box • For RSWT...32 to RSWT...90 models only RFAN (Cooling Fans) Ordering Key RFAN -75 -40 12 X1 Cooling fan Accessory for RSWT..xx (where xx = 45, 55) 40 x 40mm Supply:12VDC (internally supplied) 1 pc per box Ordering Key RFAN -120 -40 12 X2 Cooling fan Accessory for RSWT..
PAGE 25
RSWT Accessories GMS (Manual Motor Starters) Ordering Key GMS-32H-17A Type H: High breaking capacity Rated operational current • • • • • • • Overload and short-circuit protection Operational current range: 0.