Soft Starter
NJR1 Soft Starter
1. General
NJR1 series soft-starter is used for controlling motor automatically. It
adopts intelligentized digital control mode and use SCMC(single chip
Microcomputer) techniques as the core to control silicon controlled
module. It is suitable for all kind of load drived by squirrel cage
asynchronous motor.NJR1 can make motor start softly in any conditions,
protect the drive system, cut down the damage to the power line
caused by start current and ensure the motor start-up stably. The motor
will shut down smoothly and the extra-inertia impact to the drive system
can be eliminated. The perfect system protection function must prolong
the system's life, make the system cost down and enhance the system
reliability. It includes all kinds of starting device function, therefore,
it become the new generation and most ideal product to replace the
traditional Y-△ starter and couple starter.
2. Type Designation
N J R 1-□ / □
Installation(G-Switchgear type, Blank-Wall
hanging type)
Power of Control Motor(kW)
Design number
Soft Starter
AC Motor
Company Code
3. Technical Data
Supply voltage: three phase AC400V±15%, 50Hz±2%
Initial current: start current limited from 1～4.5 times
Ramp up time : 1～240s
Ramp down time: 1～120s
Min. voltage for soft starter: 25%Ue～75%Ue
Kick start-up time: 0-10(×0.1) (0 denotes no jump start)
Start-up frequency: average interval 10 times every hour
Environment condition: Temperature is -25℃～+55℃, relative humidity is 90% max(T=20℃), altitude below 2000m, vibration less than 0.5G,
placing in the room where is fine ventilation, no conductive dust, no corrosive gas.
.16.
4. Overall and Mounting dimensions
Diagram 1(wall hanging type）
B
E
A
软起
软停
急停
D
C
设置
复位
Diagram 2(switchgear type）
H
B
E
C
D
F
A
F
H-17
Model
Rated current
(A)
Power of control
motor(kW)
NJR1-7.5
15
7.5
NJR1-11
22
11
NJR1-15
29
15
NJR1-18.5
36
18.5
NJR1-22
42
22
NJR1-30
57
30
NJR1-37
70
37
NJR1-45
84
45
NJR1-55
103
55
NJR1-75
140
75
NJR1-7.5/G
15
7.5
NJR1-11/G
22
11
NJR1-15/G
29
15
NJR1-18.5/G
36
18.5
NJR1-22/G
42
22
NJR1-30/G
57
30
NJR1-37/G
70
37
NJR1-45/G
84
45
NJR1-55/G
103
55
NJR1-75/G
140
75
NJR1-90/G
167
90
NJR1-110/G
207
110
NJR1-115/G
210
115
NJR1-132/G
248
132
NJR1-150/G
280
150
NJR1-160/G
300
160
NJR1-185/G
349
185
NJR1-220/G
404
220
NJR1-250/G
459
250
NJR1-280/G
514
280
NJR1-315/G
579
315
NJR1-400/G
720
400
NJR1-500/G
900
500
Overall Dimensions(mm)
B×E×D
Mounting dimensions(mm)
A×C
240×205×430
190×415
325×205×490
290×465
330×235×555
265×525
600×370×1600
500×300
700×600×1800
540×540
800×800×2280
640×740
.18.
Soft Starter
5. Wiring
5.1 Description of control circuit terminal and secondary wiring
About Terminal Lable
Terminal Lable
Terminal Function
Description
Input signal
Soft-start signal(continuity signal)
X1 X2
X3 X4
Input signal
Soft-stop(pulse signal)
X5 X6
Input signal
Reset signal (pulse signal) Stop-immediately
X16 X17
Output signal
Event signal (Protect event, Fault event, Warning event)
X19 X20
Output signal
Running signal
01
Output signal
By-pass relay NO
02
Output signal
By-pass relay NC
03
Output signal
By-pass relay public point
5.2 Standard wiring
Diagram 5
L 1 ，L2 ，L3 ，N
R
TA2
110
N
T
FU1
FU2
207
QF
R ，S ，T
SB6
SB5
235
Power off
QF
U
RQ
W
RQ
03
01
215
KA1
213
211
RQ 03
02
217
KA1
219
221
KA2
HY
SB3
KA2
227
Running lamp
HR1
RQ
1. Descripticon of control terminal:
M
～
HR2
X, X2--Soft-start signal
X, X4--Soft-stop signal
RQ
X5, X6--Reset signal (Stop-immediately)
X16, X17--Event signal(Protect, Fault, Warning)
X19 X1
223
X16
TA1
Stop lamp
Fault lamp
KA1
225
U，V ，W
Start lamp
SB1
231
X17
PV
V
HG
SB2
SB4
A
PA
E
KA1
Event signal
X20 X2
KA2
Event signal
X4
KA1
X19, X20--Running signal
2. Remote control point in broken-line box
X3
233
KA1
Diagram 6
N
R
L 1 ，L2 ，L3 ，N
FU1
RQ 03
01
213
RQ 03
02
215
RQ X16
X17
217
TA2
HR1
Stop lamp
211
110
HG
Running lamp
A
PA
E
QF
HR2
Fault lamp
R ，S ，T
SB2
RQ
SB1
219
KA1
Soft-start control
SB3
221
KA2
Soft-stop control
SB6
223
KA3
Reset Control /Stop-immediately
W
PV
V
TA1
M
～
SB5
1. Descripticon of control terminal:
X1, X2--Soft-start signal
X3, X4--Soft-stop signal
RQ
X5, X6--Reset signal (Stop-immediately)
X19 X1
X20 X2
KA1
KA2
X5
X6
X16, X17--Event signal(Protect, Fault, Warning)
X19, X20--Running signal
2. Remote control point in broken-line box
X3
X4
.19.
U
U，V ，W
SB4
KA3
6. Functions
6.1 Digital, type SCM control;
6.2 Advanced soft start mode; a. Voltage start-up mode b. Current limiting start mode
6.3 With several optional protection functions such as peak over current protection, Input/Output phase failure protection, overload protection,
current limiting overtime protection, over-voltage protection, overheat protection of radiator, inlet phase sequence protection etc.
6.4 Communication between operator and machine;
6.5 With the function of indicating operation current and supply voltage;
6.6 With the function of fault display and memory
6.7 Natural air cooling, save space;
6.8 After the side of input power being added the isolation switch, it can be hung on the wall to use seperatedly ( Display panel operation)
7. Ordering Information ( Refer to Overall and Installation dimensions)
Example 1: The power of control motor is 45kW，by-pass AC contactor shall be assembled in the soft starter, wall hanging type installation is adopted.
Model: NJR1-45
Example: The power of control motor is 45kW, the complete device is adopted the cabinet type installation.
Model: NJR1-45/G
Special order: It can be customized according to user's technical requirements.
.20.
Soft Starter
NJR1D soft starter (Control Unit)
1. General
NJR1D soft starter device adopts 16 bits MPU as the core to control high
power controllable silicon module, and to realize soft starting and soft
stopping of three-phase AC asynchronous motor(Squirrel cage motor),
In addition, it supplies a few optional protection function like overload
protection, phase-failure protection, over current of process protection,
under current of process protection, over-voltage, under-voltage. The
product is usually assembled with complete control switchgear, and it
must be connected with by-pass contactor with the corresp-onding
specification. The product is arailable for the protection of motors
ranging from 7.5kW to 500kW. It is widely applied in the fields of
metallurgy, petrol, fire control, mine, petrochemical, It is a new
generation of product Y-△ starter and coupling starter.
2. Type Designation
N J R 1 D -□
Power of Control Motor(kW)
Device Core
Design No.
Soft Starter
AC Motor
Company code
3. Technical Data
Supply voltage: three phase AC400V±15%，50Hz±2%
Initial current: 1～4.5 In
Ramp up time: 1～240s
Ramp down time: 1～120s
Min. Voltage for soft starter: 25%Ue～75%Ue
Kick start-up time: 0-10(×0.1) (0: without kick start-up)
Start-up frequency: (average interval) 10 times every hour
Environment as condition: Temperature is -25℃～+55℃, relative humidity is 90% max ( T=20℃), altitude below 2000m, vibration less than 0.5G,
placing in the room where is fine ventilation, no conductive dust, no corrosive gas.
4. Overall and Installation dimensions
Diagram 1
B
Diagram 2
B
A
C
D
C
D
E
A
软 起
设 置
软 停
复 位
急 停
软起
设置
软停
复位
急停
E
.21.
Model
Overall Dimensions(mm)
A
B
C
D
E
Rated current Power of control
(A)
motor(kW)
NJR1D-7.5
15
7.5
NJR1D-11
22
11
NJR1D-15
29
15
NJR1D-18.5
36
18.5
NJR1D-22
42
22
NJR1D-30
57
30
NJR1D-37
70
37
NJR1D-45
84
45
NJR1D-55
103
55
NJR1D-75
140
75
NJR1D-90
167
90
NJR1D-110
207
110
NJR1D-115
210
115
NJR1D-132
248
132
NJR1D-150
280
150
NJR1D-160
300
160
NJR1D-185
349
185
NJR1D-220
404
220
NJR1D-250
459
250
NJR1D-280
514
280
NJR1D-315
579
315
NJR1D-400
720
400
NJR1D-500
900
500
Weight
(kg)
Remark
8
212
233
340
364
170
9
Diagram 1
10
12
230
258
378
530
205
20
Diagram 2
250
288
455
590
220
25
Diagram 2
5. Wiring
5.1 Primary electric diagram
Diagram 3
L1 L2 L3
QF
RST
U1 V1 W1
KM
NJR1D
U V W
KH
Note: The circuit breaker (QF),
AC contactor (KM) and the thermal
overload relay(KH) is supplied by
M
~
user.
.22.
Soft Starter
5.2 Description of control circuit terminal and secondary connection principle
About Terminal Lable
Terminal Function
Description
X1 X2
Input signal
Soft-start signal(continuity signal)
X3 X4
Input signal
Soft-stop（pulse signal）
Terminal Lable
X5 X6
Remark
Input signal
Reset signal (pulse signal) Stop-immediately
X16 X17
Output signal
Event signal (Protect event, Fault event, Warning event)
AC240V/5A
X19 X20
Output signal
Running signal
AC240V/5A
X22 X23
Output signal
Top of ramp signal(AC240V/10A)
AC240V/10A
5.3 Control circuit diagram
Diagram 4
L1 L2 L3
N
QF
KM
KH
FU
RQ
X22
R
S
U1
V1
W1
KM
HD
X23
1.SB1、SB2、SB3The wire do not more than 1.5m.
T
2.X1 connect to X19 and X2 connect to
RQ
Emereacy Stop/reset
U
X6
V W
X5
Soft stop
X4
SB3
KH
X20.(refer to the diagram)
Soft start
X3
X2
SB2
X1
X19
A2
A
A
3.The softstarter has over-load function,
though KH(thermal relay) is unnecessarily.
SB1
4.To operate from panel, SB3(button) is
Push button box
A1
X20
unnecessarily.
5. A2(amperometer ) for monitor current
TA
used to user or remote monitor.
3~
M
Diagram 5
N
L1 L2 L3
KA3
RQ
X16 X17
SB3
KA2
SB1
KA2
QF
KA3
KA1
SB2
KA1
KM
1.The softstarter has over-load function,though KH
FU
KH
HD
RQ
(thermal relay) is unnecessarily.
X22 X23
2.X1 connect to X19 and X2 connect to X20.(refer to
R
U1
V1
W1
KM
S
T
the diagram)
RQ
Emereacy Stop/reset Soft stop
U
X6
V W
KA2
KH
Push button box
TA
3~
M
.23.
X5
A1
A2
A
A
X4
KA1
3.To operate from panel, To connect X5 and X6 from
Soft start
X3
X2
X1
KA1
X19
X20
KA2 is unnecessarily.
4.To used this connection, The panel of starter is
unavailability .
5.A2(amperometer ) for monitor current used to user
or remote monitor.
Diagram 6
N
L1 L2 L3
KA2
RQ
X16
X17
SB1
KA2
QF
KA1
SB2
KA1
FU
KH
KM
HD
RQ
X22 X23
R
S
U1
V1
W1
KM
T
RQ
U
1.To used this connection, X1 and X2 short for start,
X2
V W
X1
contrarily for stop.
2.The softstarter has over-load function,though KH
KA1
KH
(thermal relay) is unnecessarily.
机旁按钮箱
A1
A2
A
A
3.A2(amperometer ) for monitor current used to user
TA
or remote monitor.
3 ～
M
Diagram 7
N
L1 L2 L3
KA3
SB3
KA2
SB2
KA1
QF
SB1
KM
KH
FU
X22
R
U1
V1
W1
S
HD
RQ
X23
T
1.X1 connect to X19 and X2 connect to X20.(refer to
RQ
急停、复位
KM
U
X6
V W
X5
KA3
KH
机旁按钮箱
TA
A1
A2
A
A
软停
X4
软起
X3
KA2
X2
X1
KA1
X19
X20
the diagram)
2.The softstarter has over-load function,though KH
(thermal relay) is unnecessarily.
3.To operate from panel, To connect KA3(AC Contactor)
is unnecessarily.
4.A2(amperometer ) for monitor current used to user or
3 ～
M
remote monitor.
6. Functions
6.1 Digital, type SCM control;
6.2 Advanced soft start mode;
a. Voltage start-up mode
b. Current limiting start mode
6.3 With several optional protection functions such as peak over current protection, input/output phase failure protection, overload protection, current
limiting overtime protection, over-voltage protection, overheat protection of radiator, inlet phase sequence protection etc.
6.4 LED display and operation keyboard assembled, to realize the communication of operator and machine, set kinds of parameter and programming.
6.5 Display operating current and supply voltage;
6.6 With the function of fault display and memory
6.7 Natural air cooling, space saving;
6.8 Supply output of running relay, ramp to top relay and fault relay, it is for external interlock;
6.9 One soft starter start multi motors.
7. Order Information
Example 1: Power of controlled motor is 45kW, it is installed and used mating with soft start cabinet or distribution cabinet.
Model: NJR1D-45
Example 2: Power of controlled motor is 90kW, it is installed and used mating with soft start cabinet or distribution cabinet.
Model: NJR1D-90
.24.
Soft Starter
NJR1 Soft Start Control Switchgear (One soft starter starts multi motors)
1. General
NJR1 soft start control switchgear (one soft starter starts multi motors)
is designed and produced for lowering production cost, device
investment, and etticient utilization of the space. It is designed on side
of controlled device or in the switching room, to realize field control or
remote control.
One soft starter starts multi motors with the same power or approxim
ate. The interval time for motor starting is more than 5mins best. The
inner core part of this product is NJR1D series soft start device standard:
IEC/EN 60947-4-2.
2. Type Designation
N J R 1-□／□
Pcs of Controlled Motor：2(one starts two),
3(one starts three)or
4(one starts four)
Power of Control Motor(kW)
Design No.
Soft Start
AC Motor
Company Code
3. Technical Data
Supply voltage: three phase AC400V±15%, 50Hz±2%
Initial current: start current limited from 1~4.5 times
Ramp up time : 1~240s
Ramp down time: 1~120s
Min. voltage for soft starter: 25%Ue~75%Ue
Kick start-up time: 0-10(×0.1) (0 denotes no jump start)
Start-up frequency: average interval 10 times every hour
Environment condition: Temperature is -25℃~+55℃, relative humidity is 90% max(T=20℃), altitude below 2000m, vibration less than 0.5G,
placing in the room where is fine ventilation, no conductive dust, no corrosive gas.
4. Overall and Installation dimensions
Diagram 1
D
B
E
.25.
Power of control
motor(kW)
Model
NJR1 (One soft starter
starts two motors)
NJR1 (One soft starter
starting three motors)
Mounting dimensions(mm)
A×C
Overall Dimensions(mm)
Length(B)
Height(D)
Width(E)
7.5~45
700
600
1800
55~75
800
600
2200
650×546
90~280
1000
600
2200
850×546
550×546
315
1000
800
2200
850×746
7.5~45
800
600
2200
650×546
55~75
1000
600
2200
850×546
90~280
1200
600
2200
1050×546
315
1200
800
2200
1050×746
5. Wiring diagram
5.1 Wiring diagram (One soft starter starts two motors)
Diagram 2
N L1 L2 L3
N
L12
N
L13
FU2
FU3
1
23
KH1
3
5
KH2
25
SB1
SB4
QF2
SB3
KM1
L12
L11
SB8
KM2
KM1
L13
19
KM3
11
KM2
KM3
KM4
31
KM2
17
SB7
KA1
9
QF3
SB6
29
KA1
QF1
SB5
27
SB2
7
21
39
KM3
41
KM4
33
KM4
43
KM1
R S T
37
15
NJR1 Soft Starter(Core)
HR1
RQ
KM2
KM4
KH1
KH2
KM1 HG1
HY1
Stop
KM2
Running
Start
HR2
HY2
Stop
KM3 HG2
Start
KM4
Running
U V W
N
L11
FU1
KM1
69
KM3
RQ
101
TA1
X22
PA1
102
A
E
TA2
RQ
PA1
A
KM1
E
71
67
3~
M1
3~
M2
1#
2#
KM3
X1
X23
KA1
KA2
X2
KA2
.26.
Soft Starter
5.2 Wiring diagram (One soft starter starts three motors)
Diagram 3
N
L1
L2
L3
N
N
L12
L13
FU3
FU2
23
1
KH2
KH1
3
5
25
SB1
27
SB2
SB4
SB3
KM1
SB8
KM2
KA1
L11
QF2
QF3
L12
KM1
QF4
L13
L14
19
11
KM2
SB7
13
39
21
KM3
41
KM4
T
HR1
KM1
KM5
37
Stop
NJR1 Soft Starter(Core)
RQ
U
V
KM1 HG1
HY1
KM2
KM4
KM6
KH1
KH2
KH3
W
KM2
Running
Start
N
43
35
KM5
S
KM4
KM4
33
15
R
KM3
KA1
KM3
KM2
17
SB6
31
9
QF1
SB5
29
7
HR2
HY2
Stop
KM3 HG2
KM4
Running
Start
L14
FU4
N
L11
FU1
KH3
45
47
KM1
SB9
69
49
51
SB10
RQ
KM3
SB12
SB11 KM5
KM6
KA1
X22
53
KM5
KM5
61
63
KM1
KM6
55
KM6
65
X23
KM1
TA1
102
A
PA1
E
103
A
TA2
PA2
PA3
HR3
E
3~
M1
3~
M2
3~
M3
1#
2#
3#
RQ
67
KA2
59
A
TA3
E
KM5
X1
KM3
101
KM3
71
57
HY3
KM5 HG3
KM6
KA1
Stop
Start
KA2
X2
Running
6. Functions
6.1 Digital, type SCM control;
6.2 Advanced soft start mode;
a. Voltage start mode
b. Current limiting start mode
6.3 With several optional protection functions such as peak over current protection, input/output phase failure protection, overload protection,
current limiting overtime protection, over-voltage protection, overheat protection of radiator, inlet phase sequence protection etc.
6.4 Communication between operator and machine;
6.5 With the function of fault display and memory
6.6 Natural air cooling, save space;
6.7 With the function of local control and remote control;
6.8 Can start any motor at any time.
7. Ordering Information
Example 1: Power of control motor is 45kW, there are two motors, choose one as oft starting to control.
Model: NJR1-45/2（One soft starter starts two motors）
Example 1: Power of control motor is 90kW, there are three motors, choose one as soft starting to control.
Model: NJR1-45/3（One soft starter starting three motors）
Note: All soft start controllers (One soft starter starts multi motors) are stated (One soft starter how many motors) in back when user orders.
.27.
Soft Starter
NJR1 Soft Start Control Switchgear of Motor
(One motor operation, the other back up)
1. General
NJR1 Soft start control switchgear of motor (one motor operation, the
other reserve) is applied to the occasion that one motor is running,
another motor is reserved (The reserve motor isoptional), when fault
occurs on chy device that cause stopping operation, the other reserved
will run automatically, so it can make sure the reserve device can work
under the special condition. To guarantee reliable operation of the
device automatic switching device can be supplied for selection when
user orders.
The core part of this product is NJR1D soft start device.
2. Type Designation
N J R 1-□／1-1(One motor operation, the other back up)
Rated Voltage Code(3 phase AC400V)
Power of Control Motor(kW)
Design No.
Soft Starter
AC Motor
Company Code
3. Technical Data
Supply voltage: three phase AC400V±15%, 50Hz±2%
Initial current: start current limited from 1～4.5 times
Ramp up time : 1～240s
Ramp down time: 1～120s
Min. voltage for soft starter: 25%Ue～75%Ue
Kick start-up time: 0-10(×0.1) (0 denotes no jump start)
Start-up frequency: average interval 10 times every hour
Environment condition: Temperature is -25℃～+55℃, relative humidity is 90% max(T=20℃), altitude below 2000m, vibration less than 0.5G,
placing in the room where is fine ventilation, no conductive dust, no corrosive gas.
4. Overall and Mounting dimensions
Diagram 1
D
B
E
.28.
Soft Starter
NJR1 (One motor
operation,
the other reserve)
Mounting dimensions(mm)
A×C
Overall Dimensions(mm)
Length(B)
Height(D)
Width(E)
Power of control
motor(kW)
Model
7.5~75
700
600
1800
90~185
1000
600
2200
850×546
220~315
1000
800
2200
850×746
550×546
5. Wiring diagram
Diagram 2
L1 L2 L3 N
1R
N
FU1
N
FU2
HG1
KM1
QF1
2R
KM2
HG2
KM2
HR3
KA3
HR4
RQ2
KM2
1 Running
2 Running
HR1
KM1
1 Stop
KA1
HR2
RQ1
KM1
2 Stop
1 Failure
QF2
QF3
X22
X23
RQ1
R S T
U1 V1 W1
RQ1
R S T
KM1
U V W
X16
U1 V1 W1
RQ2
TA2
1
2
3
4
5
6
M
～
2
TA1
TA2
PA2
A
2 Failure output
7
8
9
10
11
12
KA4
KA1
1 号起停控制
Start/stop contral
KA2
KA4
2 Start/stop contral
2#
2
1
2
SA
1-2
3-4
5-6
7-8
9-10
11-12
PA1
A
KA2
KA3
X17
SB3
SB4
SA
KA4
2 By-pass running
X23
RQ2
KA3
1#
1
X16
KA2
1
M
～
X22
1 Failure output
SB1
SB2
SA
KA3
TA1
1 By-pass running
KA1
X17
KA1
KM2
U V W
2 Failure
KA2
KA4
RQ1
RQ2
X1
X2
X1
X2
Manual
1 In use 2 In use
E
6. Functions
6.1 Digital, type SCM control;
6.2 Advanced soft start mode;
a. Voltage start mode
b. Current limiting start mode
c. Time-delay start model(0~240s)
6.3 With several optional protection functions such as peak over current protection, input/output phase failure protection, overload protection, current
limiting overtime protection, over-voltage protection, overheat protection of radiator, inlet phase sequence protection etc.
6.4 Communication between operator and machine;
6.5 With the function of indicating operation current and supply voltage;
6.6 With the function of fault display and memory
6.7 Reserve for each other;
6.8 Optional for manual or auto operation.
7. Ordering Information
Example 1: The power of control motor is 45 kW，thus, a motor needs be reserved.
Model: NJR1-45/1-1(One motor operation, the other reserve)
Example 2: The power of control motor is 90 kW，thus, a motor needs be reserved.
Model: NJR1-90/1-1(One motor operation, the other reserve)
.29.
Soft Starter
NJR1 Soft Start Control Switchgear of Motor
(Two motors operation, another back up)
1. General
NJR1 Soft start control switchgear of motor is applied in the occasion
that two motors are running, another motor is back up(The reserve
motor can be chosen), when any one device occurs fault that causes
stopping operating, another reserved will run automatically, so it can
make sure the reserve device can work in time under the special
condition. To guarantee the device reliable operation, double power
auto switching can be supplied for selection when user orders.
The inner core part of this product is NJR1-Z fully digital soft start device.
2. Type Designation
N J R 1-□／2-1
2-1(Two motors operation, another back up)
Power of Control Motor(kW)
Design No.
Soft Starter
AC Motor
Company Code
3. Technical Data
Supply voltage: three phase AC400V±15%, 50Hz±2%
Initial current: start current limited from 1～4.5 times
Ramp up time : 1～240s
Ramp down time: 1～120s
Min. voltage for soft starter: 25%Ue～75%Ue
Kick start-up time: 0-10(×0.1) (0 denotes no jump start)
Start-up frequency: average interval 10 times every hour
Environment condition: Temperature is -25℃～+55℃, relative humidity is 90% max(T=20℃), altitude below 2000m, vibration less than 0.5G,
placing in the room where is fine ventilation, no conductive dust, no corrosive gas.
4. Overall and Mounting dimensions
Model
NJR1 (Two motors
operation,
another reserve)
Power of control
motor(kW)
Overall Dimensions(mm)
Length(B)
Height(D)
Width(E)
Mounting dimensions(mm)
A×C
7.5~75
800
600
2200
90~280
1200
600
2200
1050×546
315
1200
800
2200
1050×746
650×546
.30.
Soft Starter
Diagram 1
D
B
E
5. Wiring Diagram
Diagram 2
L1 L2 L3 N
1R
N
FU1
QF1
KM1
HG1
KM1
HR1
2R
N
FU2
KM2
HG2
KM2
HR3
1 running indication
KA1
HR2
KA3
RQ1
R S T
R S T
U1 V1 W1
KM1 RQ2
U V W
U1 V1 W1
X16
KM2 RQ3
U V W
HR6
3 stop indication
3 failure indication
RQ2
1 bypass operation
X23
RQ2
1 failure out put
X17
KM2
RQ3
2 bypass operation
X22 X23
KA1
X22
2 failure out put
X16 X17
X16
KM3
3 bypass operation
X23
RQ3
KA3
KA5
3 failure out put
X17
KM3
KA5
SB5
KA3
SB3
TA3
SB2
SA
1
2
3
4
SA
KA2
KA2
KA3
1
KA5
U V W
TA2
M
～
HR5
3 running indication
HR4
KA1
TA1
KM3
2 failure indication
KM1
RQ1
RQ1
U1 V1 W1
HG3
QF4
X22
R S T
KM3
2 stop indication
1 failure indication
QF3
FU3
2 running indication
1 stop indication
QF2
N
3R
M
～
M
～
2
3
6
7
8
SA
9
KA4
KA1
1 satrt/stop
KA5
SB4
5
KA5
SB6
KA6
10
KA1
KA4
11
2 satrt/stop
12
KA3
KA6
3 satrt/stop
SA
1-2
3-4
TA1
TA2
TA3
PA1
A
PA2
A
PA3
A
5-6
KA2
KA4
KA6
RQ1
RQ2
RQ3
7-8
9-10
X1
X2
X1
X2
X1
X2
11-12
Stop Naual
3# 2#
4#
Back up Back up Back up
E
6. Tunctions
6.1 Digital, type SCM control;
6.2 Advanced soft start mode;
a. Voltage start mode
b. Current limiting start mode
6.3 With several optional protection functions such as peak over current protection, input/output phase failure protection, overload protection, current
limiting overtime protection, over-voltage protection, overheat protection of radiator, inlet phase sequence protection etc.
6.4 Communication of operator and machine;
6.5 With the function of indicating operation current and supply voltage;
6.6 With the function of fault display and memory
6.7 Reserve for each other;
6.8 Optional for manual or stop operation
6.9 Simple circuit, convenient maintenance.
7. Ordering Information
Example 1: The power of control motor is 45 kW，there are three motors, one of them needs be reserved.
Model: NJR1-45/2-1（Two motors operation, another reserve）
Example 2: The power of control motor is 90 kW，there are three motors, one of them needs be reserved.
Model: NJR1-90/2-1（Two motors operation, another reserve）
.31.