SST - ES/MS series Built-in bypass motor soft starter

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SST – ES/MS series Built-in bypass motor soft starter

Catalogue:

NO.	Title	Download Link
1.	SST-MS(ES) Series Soft starter catalog	Download Link

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Frequency Inverter

Soft Starter

Induction Motor

Replacement

Resistor

Reactor

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Product Overview

SST -MS/ES series soft starter is a mini Soft starter
Small size, large capacity
Built-in bypass, compact structure
Dedicated thyristor module and high-current magnetic latching relay, the machine has strong overload capacity
All-aluminum body, simple and elegant, open mold design
The main circuit terminal is designed with open mold, which makes wiring convenient and reliable, and has strong overload capacity
The main circuit is made of copper bar, which does not generate heat and has strong overload capacity
Control terminal: programmable input + programmable output + Rs485
Friendly human-machine interface and rich display content
15 protection functions, some of which can be turned off

Technical Reference

Power supply	Standard wiring AC 220V,380V ±15%，50Hz,60Hz.
Nominal current	2.2 A– 45 A, 9 ratings in total
Power level	1.1-55kW,9 ratings in total
Starting current	100~500%
Control object	Three-phase asynchronous motor
Start and stop frequency	<10 times/hour
Protected Mode	Input and output phase loss, start timeout, overheating, overcurrent, overload, overvoltage, undervoltage, three-phase imbalance, external fault, etc.
Protection grade	Ip20
Cooling method	Natural cooling or forced air cooling
Installation method	Wall-mounted, rail-mounted
Communication	Modbus
Programmable digital inputs	3-Way
Programmable relay outputs	2-Way
Ambient temperature	-10°℃~40°℃
Ambient humidity	<90%,no condensation
Installation location	No direct sunlight

Product Specification

Specifications	230v Rated power (KW)	400v Rated power (KW)	Rated current(A)	Overall dimensions (LWH) (mm)	Installation dimensions (LWH) (mm)
SST-MS Series (with digital panel + keyboard +RS485)	0.75	1.1	3	13152112	11341112
	1.1	2.2	5
	1.1	3.7	8
	2.2	5.5	13
	3.7	7.5	17
	5.5	11	25
	7.5	15	32	14552112	12741112
	7.5	18.5	37
	11	22	45
	15	30	60	19075122	17475122
	18.5	37	75
	22	45	90
	30	55	110
SST-ES Series (with potentiometer + indicator light)	0.75	1.1	2.2	13152112	11341112
	1.1	2.2	4.5
	1.1	3.7	7.5
	2.2	5.5	13
	3.7	7.5	17
	5.5	11	25
	7.5	15	32	14552112	12741112
	7.5	18.5	37
	11	22	45
	15	30	60	19075122	17475122
	18.5	37	75
	22	45	90
	30	55	110

Installation Dimension

Specifications	Dimensions (mm)			Installation size (mm)				Max cross section of line (mm)	Max width of terminal(mm)
Specifications	L1	W1	H1	L2	W2	H2	D2	Max cross section of line (mm)	Max width of terminal(mm)
1.1-11kw	131	52	112	113	41	112	M4	16	8
15-22kw	145	52	112	127	41	112	M4	16	8
30-55kw	190	75	112	174	61	112	M4	35	15

(Table -1: Screw fixing method dimensions)

Specifications	Dimensions (mm)			Installation size (mm)					Max cross section of line (mm)	Max width of terminal(mm)
Specifications	L1	W1	H1	L2	W2	H2	L3	D2	Max cross section of line (mm)	Max width of terminal(mm)
1.1-11kw	131	52	118.5	113	41	118.5	63	M4	16	8
15-22kw	145	52	118.5	127	41	118.5	70	M4	16	8
30-55kw	190	75	122	174	61	128.5	87	M4	35	15

(Table -2: Dimensions of guide rail fixing methods)

Specifications	Dimensions (mm)			Installation size (mm)				Max cross section of line (mm)	Max width of terminal(mm)
Specifications	L1	W1	H1	L2	W2	H2	D2	Max cross section of line (mm)	Max width of terminal(mm)
1.1-11kw	131	52	112	113	41	112	M4	16	8
15-22kw	145	52	112	127	41	112	M4	16	8
30-55kw	190	75	112	174	61	112	M4	35	15

(Table -3:Screw fixing method dimensions)

Specifications	Dimensions (mm)			Installation size (mm)					Max cross section of line (mm)	Max width of terminal(mm)
Specifications	L1	W1	H1	L2	W2	H2	L3	D2	Max cross section of line (mm)	Max width of terminal(mm)
1.1-11kw	131	52	118.5	113	41	118.5	63	M4	16	8
15-22kw	145	52	118.5	127	41	118.5	70	M4	16	8
30-55kw	190	75	122	174	61	128.5	87	M4	35	15

(Table -4:Dimensions of guide rail fixing methods)

External terminal description

SST-ES control terminal

RUN

COM

+12V

RLA

RLB

RLC

Terminal Model	Terminal No.	Terminal name		illustrate
Main circuit	L1，L2，L3	Soft start input		Connect to three-phase AC power supply
	T1，T2,T3	Soft start output		Connect to three-phase asynchronous motor
Run enter	RUN	/		Start/Stop	/
	COM	Public			Provide 12v/100mA power supply for external use
	+12V	Power+		/
Relay Output	RLA	Normally Closed	/	Running status indication, running on, stopping off
	RLB		Normally Open
	RLC	RLC

RS485		Programmable digital inputs				RELAY1		RELAY2
A	B	COM	DI1	DI2	DI3	T1A	T1B	T2A	T2B

Terminal Model	Terminal No.	Terminal name	illustrate
Main circuit	L1,L2,L3	Soft start input	Connect to three-phase AC power supply
Main circuit	T1，T2,T3	Soft start output	Connect to three-phase asynchronous motor
Communication	A	RS485+	Modbus Communication
Communication	B	RS485-	Modbus Communication
Programmable Digital Input	COM	Public	Digital ground,used together with Dl1,DI2, and DI3
	DI1	Terminal 1	0:Emergency stop 1: Stop 2:Start 3:Reset 4:External fault
	DI2	Terminal 2
	DI3	Terminal 3
Programmable Relay Output	RELAY1A	Relay 1 Normally open contact	0: Fault state (positive logic) 1:Normal operation (positive logic) 2:Stop state (positive logic) 3: Soft start state (positive logic) 4: Soft stop state (positive logic) 5: Fault state (negative logic) 6: Normal operation (negative logic) 7:Stop state (negative logic) 8: Soft start state (negative logic) 9: Soft stop state (negative logic)
	RELAY1B	Relay 1 Normally open contact
	RELAY2A	Relay 2 Normally open contact
	RELAY2B	Relay 2 Normally open contact

Operation panel

Indicator light
RUN ON	Always on	Off	Flash
Always on	Bypass operation	Hardware abnormality	Input or output phase loss hardware fault
Flash	Soft start or soft stop in progress	Hardware abnormality	Hardware abnormality
Off	Equipment powered	Soft start power failure	Input or output phase missing, motor not connected
Off	Ready to start	Or indicator light failure	Input or output phase missing, motor not connected
FAULT	Faulty	No trouble	/

Startup timing diagram

Button	Function
ESC	1. Enter parameter setting 2.Return to the previous menu
▲	1.Normal state: You can view the current of phase A, phase B, phase C, grid voltage, and radiator temperature 2. Menu status: parameter number and parameter value can be modified
▼	1.Menu status: select parameter number and confirm parameter value 2.Fault status: Reset fault
ENT/RST	1.Normal state: You can view the current of phase A, phase B, phase C, grid voltage, and radiator
ENT+▲ Combination	1. Keyboard operation
ENT+▼ combination	1. Keyboard stop v

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