Eaton S701 Manual

Pub 49440
Effective 01/02 1
Instruction Leaflet for S701 Soft Starters
Description
The S701 device is a reduced volta
g
e soft start series control-
ler desi
g
ned to control acceleration and deceleration of three-
phase motors. The S701 provides the user the abilit
y
to adjust
initial torque, ramp up and down time, and also select kick start
for hi
g
h inertia loads.
Approvals
CAN. CSA-C22.2 / UL Std. No. 508
IEC 947-4-2, IEC 158-2,
EN 60947-4-2, HD 419.2-S1
CE Marked
Mountin
g
Guidelines
Important — The S701_15, and S701_25 controllers are
desi
g
ned for vertical mountin
g
in free air. If these controllers
are mounted horizontall
y
, the load current must be reduced to
50% of rated current.
WARNING
DO NOT INSTALL OR PERFORM MAINTENANCE ON THIS
DEVICE WHILE EQUIPMENT IS ENERGIZED. DEATH OR
SEVERE PERSONAL INJURY CAN RESULT FROM CON-
TACT WITH ENERGIZED EQUIPMENT. VERIFY THAT NO
VOLTAGE IS PRESENT BEFORE PROCEEDING WITH
INSTALLATION OR MAINTENANCE.
Onl
y
qualified persons, as defined in the National Electric
Code, who are familiar with the installation, maintenance and
operation of this device and the equipment onto which it is to
be installed, as well as applicable local, state and national re
g
-
ulations and industr
y
standards and accepted practices
re
g
ardin
g
safet
y
of personnel and the equipment safet
y
should
be permitted to install, maintain or operate this device. These
instructions are provided onl
y
as a
g
eneral
g
uide to such quali-
fied persons and are not all-inclusive. The
y
do not cover ever
y
application or circumstance which ma
y
arise in the installation,
maintenance or operation of this equipment. Users are advised
to compl
y
with all local, state and national re
g
ulations and
industr
y
standards and accepted practices re
g
ardin
g
safet
y
of
personnel and equipment.
CAUTION
REMOVE ALL POWER FROM THE INSTALLATION
BEFORE ATTEMPTING TO INSTALL OR REMOVE THIS
DEVICE. THIS INCLUDES L1, L2, L3 AS WELL AS A1, A2,
11 AND 12.
Dimensions, mm [inches]
Figure 1. Approx. Dimensions in mm [inches] —S701_03
Figure 2. Approx. Dimensions in mm [inches] —S701_15
Figure 3. Approx. Dimensions in mm [inches] —S701_25
Figure 4. Approx. Dimensions in mm [inches] —Mounting
84,0 [3.31]
100,7 [3.96]
127,3 [5.01]
90,0 [3.54]
120 [4.72]
123,8 [4.87]
3,5 [0.14]
22,5 [0.89]
8,5 [0.33]
100 [3.94]
109 [4.29]
4,5
[10.0]
45,0
1.77
110,0
[4.33 ]
45,0
[1.77]
110,0
[4.33 ]
4,3
[0.17 ]
120
[4.72 ]
3,8
[0.15 ]
8,5
[0.33] 128,1
[5.04 ]
110,0
[4.33 ]
4,5
[0.10]
30
[1.18]
90 [3.54]
100 [3.94]
30
[1.18]
8,5 [0.33] 128 [5.04]
120 [4.72]4,3 [0.17] 3,8
[0.15]
110 [4.33]
94 [3.70]
S701_15 & S701_25
Requires 50%
rating reduction for
horizontal mounting
80 [3.15]
30,0 [1.2]
30,0 [1.2]
S701_03
Can be mounted
in any position

Pub 49440
Effective 01/022
Specifications
Table 1. Thermal and Mounting Specifications
* UL Tested.
Table 2. Insulation Specifications
Environment Specifications
EMC
Protection De
g
ree: IP20
Pollution De
g
ree: 3
Table 3. Output Specifications
Table 4. Control Specifications
Product Selection
Table 5. Product Description and Item Selection
Maintenance
Coolin
g
fins must be kept clean and free from dust. The airflow
must not be blocked.
Wirin
g
Dia
g
ram
Figure 5. Wiring Diagram
Terminals 11 and 12 have no connection with the internal circuit.
The
y
are to be used in conjunction with a thermal overload pro-
tection or for other wirin
g
purposes.
NOTE: Use thermal overload protection as required by
the National Electric Code (NEC).
Specification S701_03 S701_15, S701_25
Power dissipation (max.)
continuous operation
4 Watts 2 Watts per Amp
Power dissipation (max.)
intermittent operation
4 Watts x
duty cycle
2 Watts per Amp x
duty cycle
Cooling method Natural
convection
Natural convention
Operating temperature
range, (see Table 6)
-5°to 40°C
[23°to 104°F]
-5°to 40°C*
[23°to 104°F]
Storage temperature -20°to 80°C
[-4°to 176°F]
-20°to 80°C
[-4°to 176°F]
Mounting Arbitrary Vertical ±30°
Horizontal derate 50%
Description Specification
Rated insulation voltage Ui 660 Volt
Rated impulse withstand voltage Uimp 4 kVolt
Installation category III
Specification S701_03 S701_15 S701_25
Operational
Current (max.)
3.5A
AC-53a, AC-3
15A
AC-53a, AC-3
25A
AC-53a, AC-3
Leakage
Current
5 mA
AC max.
4 mA
AC max.
5 mA
AC max.
Operational
Current (min.)
50 mA 50 mA 50 mA
Max. Motor Size
208 –230V AC
0.75 hp
(0.1 –0.55 kW)
5-1/2 hp
(0.1 –4.0 kW)
10 hp
(0.1 –7.5 kW)
Max. Motor Size
380 –415V AC
1.5 hp
(0.1 –1.1 kW)
10 hp
(0.1 –7.5 kW)
15 hp
(0.1 –11.0 kW)
Max. Motor Size
400 –480V AC
2 hp
(0.1 –1.5 kW)
10 hp
(0.1 –7.5 kW)
15 hp
(0.1 –11.0 kW)
Max. Motor Size
400 –600V AC
2 hp
(0.1 –1.5 kW)
10 hp
(0.1 –7.5 kW)
25 hp
(0.1 –18.0 kW)
Control Voltage S701_03 S701_15 S701_25
C
D
24 –240
24 –300
24 –240
—
24 –240
—
E
G
24 –300
24 –300
24 –480
24 –480
24 –300
24 –300
Pickup Voltage (max.) 20.4V AC/DC
Dropout Voltage (min.) 5V AC/DC
Control Current without operating 1 mA
Response Time (max.) 70 ms
Control Current / Power (max.) 15 mA / 2 VA
Line Voltage
(V AC)
Item No.
(3.5 Amp)
Item No.
(15 Amp)
Item No.
(25 Amp)
208 –240
400 –415
S701C03N3S
S701D03N3S
S701C15N3S
S701E15N3S
S701C25N3S
S701E25N3S
440 –480
550 –600
S701E03N3S
S701G03N3S
S701E15N3S
S701G15N3S
S701E25N3S
S701G25N3S
Ramp Up Time Adjustable from 0.5 - 10 seconds
Ramp Down Time Adjustable from 0.5 - 10 seconds
Initial Torque with
Optional Kick Start
Adjustable from 0 –85% of
nominal torque
S 7 0 1 C 15 N 3 S
Soft Start Controller Control Options
S - Standard
BP - Aux. Contact
Number of Poles
Options
N - No Special Options
B - Braking
Line Voltage
C - 208-240 V AC
D - 400-415 V AC
E - 400-480 V AC
G - 550-600 V AC
Amperage
03 = 3.5 Amps
15 = 15 Amps
25 = 25 Amps
2/T1 4/T2 6/T3
1/L1 3/L2 5/L3 11 12
A1 A2

Pub 49440
Effective 01/02 3
Current Deratin
g
Operation in ambient temperatures exceedin
g
40°C [104°F] is
possible if the power dissipation is limited either b
y
reducin
g
the stead
y
-state current or b
y
reducin
g
the dut
y
c
y
cle of the
soft starter as shown in Table 6.
Table 6. Current Derating
Current Derating for S701_03N3S
Functional Diagram
Example 1
Start with initial torque controlled from the input.
Example 2
Soft start with kick start, initial torque.
Soft stop controlled from the mains input.
Utilization Cate
g
ories (IEC 947-4-2)
Table 7. Utilization Categories
Wirin
g
Directions
!IMPORTANT
When using electrical or pneumatic tools for screw termi-
nals, observe maximum torque limits.
Short Circuit Protection
Short circuit protection is divided into two levels —
T
y
pe 1 and T
y
pe 2.
T
y
pe 1 —protects the installation
T
y
pe 2 —protects the installation and the
semiconductors inside the motor controller
Short Circuit Protection by Circuit Breaker
A 3-phase motor with a correctl
y
installed and adjusted over-
load rela
y
will not short-circuit totall
y
to earth or between the 3
phases. Part of the windin
g
will normall
y
limit the short circuit
current to a value that will cause instantaneous ma
g
netic trip-
pin
g
of the circuit breaker without dama
g
e to the soft starter.
The ma
g
netic trip response current is approximatel
y
11 times
the maximum adjustable current.
Short Circuit Protection by Fuses
T
y
pe 1
S701_03N3S —protection max. 25A gI/gL/gG
S701_15N3S —protection max. 50A gI/gL/gG
S701_25N3S —protection max. 80A gI/gL/gG 63A T
T
y
pe 2
S701_03N3S —protection max. l2t of the fuse 72A2S
S701_15N3S —protection max. l2t of the fuse 1800A2S
S701_25N3S —protection max. l2t of the fuse 6300A2S
NOTE: S701_25N3S —When protected b
y
a non-time dela
y
K5 or H class fuse rated 266% of motor FLA, this
device is rated for use on a circuit capable of deliver-
in
g
not more than 5000 rms s
y
mmetrical amperes,
600V maximum.
Ambient
Temperature S701_15N3S S701_25N3S
40°to 50°C
[104°to 122°F]
12.5 Amps Continuous or
15 Amps Max. on-time 15
min. Max. duty cycle 0.8
20 Amps Continuous or
25 Amps Max. on-time 15
min. Max. duty cycle 0.8
50°to 60°C
[122°to 140°F]
10 Amps Continuous or
15 Amps Max. on-time 15
min. Max. duty cycle 0.65
17 Amps Continuous or
25 Amps Max. on-time 15
min. Max. duty cycle 0.65
Overload Trip Class
10A
10
20
30
15A
15A
12A
10A
25A
25A
20A
15A
Item Specification
AC-52a Control of slip-ring motor stators
AC-53a Control of squirrel cage motor
AC-58a Control of hermetic refrigerant compressors
with automatic resetting of overload releases
S > 10mm, I Max = 3,5 Amps
S < 10mm, I Max = 2,5 Amps
S
Mains Ue L1, L2, L3
Control Ue A1A2
Motor Voltage
LED 1
LED 2
Example 1 Example 2
75°C L1 T1 / L2 T2 / L3 T3 A1 A2 / 11 12
0.75 –4 mm2
[18 –12 AWG]
0.5 –1.5 mm2
[20 –16 AWG]
1.0 mm2
[18 AWG]
0.5 –0.75 mm2
[20 –18 AWG]
0.75 –6 mm2
[18 –10 AWG]
0.5 –1.5 mm2
[20 –16 AWG]
0.75 –2.5 mm2
[18 –14 AWG]
0.5 –1.5 mm2
[20 –16 AWG]
0.75 –6 mm2
[18 –10 AWG]
0.5 –1.5 mm2
[20 –16 AWG]
0.75 –1.5 mm2
[18 –16 AWG]
0.5 –1.5 mm2
[20 –16 AWG]
Posidrive 1
0.5 Nm max.
[4.4 lb-in max.]
N/A
4 mm
0.5 Nm max.
[4.4 lb-in max.]
3 mm
0.4 Nm max.
[3.5 lb-in max.]
* UL Tested.
*
*
*

Pub 49440
Effective 01/024
Using Line Voltage to
Control S701
When the contactor C1 is
switched to the ON state, the
motor controller will soft start
the motor accordin
g
to the set-
tin
g
s of the ramp-up time and
initial torque adjustments.
When the contactor C1 is
switched to the OFF state, the
motor will be switched off
instantaneousl
y
.
In this application, the contac-
tor will have no load durin
g
makin
g
operation.
The contactor will carr
y
and
break the nominal motor cur-
rent. Maximum volta
g
e in this
application is 300V AC.
Separate Input Signal to
S701
When the control input is
switched to the ON state
(S closed), the motor control-
ler will soft start the motor
accordin
g
to the settin
g
s of the
ramp-up time and initial torque
adjustments.
When the control input is
switched to the OFF state
(S open), the motor will be
switched off instantaneousl
y
onl
y
if the ramp-down time is
adjusted to 0.
With an
y
other settin
g
, the
motor will be soft stopped
accordin
g
to the settin
g
s of the
ramp-down time adjustment.
Soft Reversin
g
of
Motors up to 5 hp/4 kW
A soft reversin
g
of a motor can
easil
y
be achieved b
y
con-
nectin
g
a reversin
g
rela
y
to
the soft starter.
The reversin
g
contactor t
y
pe
S511 will determine the direc-
tion of rotation forward or
reverse and the soft start t
y
pe
S701 will perform soft-startin
g
and soft-stoppin
g
of the motor.
If soft stop is not required, the
application can be simplified
b
y
connectin
g
the control cir-
cuit of the soft start controller
to the main terminals as
shown in Figure 6. A dela
y
of
approximatel
y
0.5 seconds
between forward and reverse
control si
g
nal must be
allowed to avoid influence from the volta
g
e
g
enerated b
y
the
motor durin
g
turnoff.
Reversin
g
of Motors
Up to 15 hp/11 kW
A soft-reversin
g
of motors can
easil
y
be achieved when the
motor load exceeds 5 hp/4 kW
b
y
connectin
g
a mechanical
reversin
g
contactor to the soft
start controller.
The reversin
g
contactor will
determine the direction of
rotation forward or reverse
and the soft start t
y
pe S701
will perform soft-startin
g
and
soft-stoppin
g
of the motor.
Overload Protection with
Manual Starter
Overload protection of the
motor is easil
y
achieved b
y
installin
g
a manual motor
starter on the suppl
y
side of
the motor.
The manual motor starter pro-
vides means for padlockin
g
and the necessar
y
clearance
for use as a circuit isolator
accordin
g
to EN60204-1.
Adjust the current on the man-
ual motor starter accordin
g
to
the rated nominal current of
the motor.
Overload Protection with
Mechanical Starter
Overload protection of the
motor is easil
y
achieved b
y
installin
g
a mechanical starter
on the suppl
y
side of the soft
start controller.
The overload provides the
necessar
y
motor protection for
an overload condition.
A short circuit protective
device is required to meet UL
requirements.
S701 24-300V
L1 L2 L3
T1 T2 T3
A1 A2
L1 L2 L3
M
C1
Figure 6. Line Controlled
Soft Start *
S701
Control Voltage
24 - 300 V
L1 L2 L3
T1 T2 T3 A1 A2
L1 L2 L3
M
S
C1
Figure 7. Input Controlled
Soft Start *
Run / Stop
Reverse
Forward
S511
S701
L1 L2 L3
M
L1 L2 L3
T1 T2 T3 A1 A2
L1 L2 L3
T1 T2 T3 A2 A3 A4
C1
A1
Figure 8. Soft Reversing of
Motors*
S701
Run / Stop
T1 T2 T3
A1 A2
L1 L2 L3
FWD REV
A1
L1 L2 L3
M
Figure 9. Reversing of
Motors *
S701
L1 L2 L3
T1 T2 T3 A1 A2
I> I> I>
L1 L2 L3
M
Figure 10. Overload
Protection with Manual Motor
Starter *
S701
Run / Stop
L1 L2 L3
T1 T2 T3 A1 A2
M
L1 L2 L3
C1
Figure 11. Overload
Protection with Mechanical
Starter *
*Use specified backup fuse or circuit breaker.

Pub 49440
Effective 01/02 5
Figure 12. Adjust Time and Torque
How to Adjust Time and Torque, Fi
g
ure 12
Control of the motor torque is achieved b
y
actin
g
on the motor
volta
g
e.The motor speed depends on the torque produced b
y
the motor and the load on the motor shaft. A motor with little or
no load will reach full speed before the volta
g
e has reached its
maximum value.
NOTE: The soft start controller will read time and torque set-
tin
g
s in the OFF state. Repeated starts ma
y
trip the
motor protection rela
y
. DO NOT set the rotar
y
switches in between positions. This corrupts the time
and torque adjustment. Use screwdriver 2 mm x
0.5 mm.
Ratin
g
Index
Table 8. Rating Index
Ramp-Up Time and Initial Torque
Table 9. Ramp-Up Time and Initial Torque
(Standard Load)
Kick Start/Break Loose
If it is not possible to reach a time sufficient for the application,
it ma
y
be necessar
y
to kick start the load.
Table 10. Kick Start/Break Loose (High Inertia Loads)
Ramp-Down Time
Follow Table 9 to set Ramp-Up and Initial Torque.
Table 11. Ramp-Down Time, e.g. Pump Loads
200ms kick start with
Adj. Torque, 0 - 85%
0
100%
Motor Voltage
Time
Ramp-Up, 0.5 - 10 Sec.
Ramp-Down, 0.5 - 10 Sec.
Torque Adjustment, 0 - 85%
8,2
5,6
3,9
0,8
1,2
1,8
0
2,7
8,2
5,6
3,9
0,8
1,2
1,8
0
2,7
J
t
Ramp up
U
t
Ramp down
U
t
Initial torque
U
t
Kick start
0
4
6
6
4
2
0
2
6
4
20
2
6
0
4
A1 A2
2 /T1 4/T2 6/T3
11 12
1/L1 3 /L2 5/L3
S701E25N3S
92EQ10005A0001A
S701_15N3S S701_25N3S
15A: AC-52a: 4-13 : 100 –3000 25A: AC-52a: 4-13 : 100 –3000
15A: AC-53a: 8-3 : 100 –3000 25A: AC-53a: 8-3 : 100 –3000
15A: AC-58a: 6-6 : 100 –3000 25A: AC-58a: 6-6 : 100 –3000
Position Setting/Adjustment
Set the Ramp-Up switch to maximum.
Set the Ramp-Down switch to minimum.
Set the Initial Torque switch to minimum.
Apply control signal for a few seconds. If the load does not
rotate immediately, increment the Initial Torque and try
again. Repeat until the load starts to rotate immediately on
startup.
Adjust Ramp-Up time to the estimated start time (the
scale is in seconds) and start the motor.
Decrease the Ramp-Up time until mechanical surge is
observed during start.
Increase the time one step to eliminate the surge.
8,2 0
0
0
Position Setting/Adjustment
Set the Ramp-Up switch to maximum.
Set the Ramp-Down switch to minimum.
Set the Initial Torque switch to minimum kick
start torque.
Apply control signal for a few seconds. If the load stops
right after the 200ms “kick”, increment the Initial Torque
and try again. Repeat until the load continues to rotate
after the “kick”.
Adjust Ramp-Up time to the desired start time (the scale is
in seconds) and start the motor.
Position Setting/Adjustment
Set the Ramp-Down switch to maximum.
Switch off the control voltage and observe any mechanical
surges on the load. If there are none, decrement Ramp-
Down switch and try again. Repeat until mechanical surge
on the load is observed.
Increase the time one step to eliminate the surge.
8,2 0
0
0
8,2 0
0

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Effective 01/026

Pub 49440
Effective 01/02 7

Pub 49440
© 2002 Eaton Corporation
All Ri
g
hts Reserved
Printed in USA
Effective 01/02