Motor Controllers
3-Phase Analog Power Controller
Types RSC-AAM60/RSO .....
•
Control and output modules for analogue
control of 3-phase induction motors or heaters
•
Rated operational current: 3 x 10, 25, 50, 90, 110 AACrms
•
Rated operational voltage: Up to 600 VACrms
•
Supply voltage range: 10 to 32 VDC
• Control current range: 0 to 20 mA/4 to 20 mA
•
LED-indication for line ON and load ON
•
Varistor protection
•
Approvals: CE, CCC, UL, CSA
Product Description
The micro processor based
control module RSC-AAM60
is used with output modules
RSO... to achieve a voltage
controlled soft start/soft stop
of 3-phase motors and a pos-
sibility for energy reduction
when e.g. a fan is running with
a variable capacity. This func-
tion is achieved by controlling
the control module with a cur-
rent between 4 and 20 mA (0
and 20 mA). The output mod-
ule can be selected according
to the rated operational volt-
age and the size of the load.
This phase angle controlled
soft-start unit can be used for
pumps, fans, heaters, lights
and many other applications.
LED indications for line ON
and load ON gives a clear sta-
tus indication.
Ordering Key
Solid State Relay
Soft starting/stopping
Control module
Output module
Control input type
Multivoltage
Rated operational voltage
Rated operational current
RSC-AA M 60
RSO 4050
Type Selection, Control Module
Control current
0-20 mA/4-20 mA
Mains
Multivoltage
Max. operational voltage
600 VAC
Type Number
RSC-AA M 60
Type Selection, Output Module
Rated operational voltage
Rated operational current
10 A
25 A
50 A
RSO 2210
RSO 4010
RSO 4810
RSO 2225
RSO 4025
RSO 4825
RSO 2250
RSO 4050
RSO 4850
RSO 6050
90 A
RSO 2290
RSO 4090
RSO 4890
RSO 6090
110 A
RSO 22110
RSO 40110
RSO 48110
RSO 60110
3 x 220 VAC
3 x 400 VAC
3 x 480 VAC
3 x 600 VAC
General Spec., Control Module
Operational voltage range
Line to line
Operational frequency range
Supply current
@ no output current
@ max. output current
Supply voltage range
CE-marking
Approvals
150 to 660 VACrms
45 to 65 Hz
< 30 mA
< 180 mA
10 to 32 VDC
Yes
UL, CSA, CCC
Control Specifications
Minimum output voltage
Output current
short-circuit protected
Power supply minus 8 VDC
≤
150 mA DC
Thermal Specifications
Operating temperature
Storage temperature
-20° to +70°C (-4° to +158°F)
-40° to +100°C (-40° to +212°F)
Specifications are subject to change without notice (26.03.2010)
1
RSC -AAM60/RSO.....
Control Input Specifications
Control current
A-input
B-input
Input impedance
Power supply reset time
Response time
(input to trigger outputs)
0 to 20 mA
4 to 20 mA
250
Ω
≤
300 ms
≤
1 cycle
Isolation Control Module
Rated isolation voltage
Input to trigger outputs
≥
4000 VACrms
Operation Diagram
[%]
100
Mode of Operation
The control module RSC-
AAM60 is used with the out-
put module RSO..... to
achieve analog control of 3-
phase induction motors.
Soft starting is achieved by
increasing the motor voltage
in accordance with the input
current. Soft stopping is
achieved by decreasing the
motor voltage in accordance
with the input current.
When the motor is running
idle, the motor voltage can
be reduced by lowering the
input current, whereby ener-
gy is saved.
Heating elements can also
be controlled with the
RSC/RSO with the use of
appropriate filters.
80
60
U
rms
/U
n
P/P
n
40
20
0
0
4
5
8
10
12
15
16
20
20
[mA]
Output as a function of control current @cos(ø) = 0.9
General Specifications, Output Module
RSO 22...
Operational voltage range
Line to line
Blocking voltage
Varistor voltage
CE-marking
150 to 250 VACrms
1200 V
p
275 VAC
Yes
RSO 40...
220 to 420 VACrms
1200 V
p
420 VAC
Yes
RSO 48...
400 to 510 VACrms
1200 V
p
510 VAC
Yes
RSO 60...
400 to 625 VACrms
1600 V
p
625 VAC
Yes
Output Specifications, Output Module
RSO ..10
IEC and CCC
Rated Operational Current
AC 51
IEC and CCC rated
operational current
AC 53a
Number of starts/hr @40˚C
Overload cycle according to
EN/ IEC 60947-4-2 @ 40˚C
Off-state leakage current
On-state voltage drop
I
2
t for fusing t=10 ms
Non-rep. surge current
t=10 ms
* Mounted on RHS 301
RSO ..25
RSO ..50
RSO ..90
RSO ..110
16 Arms
25 Arms
50 Arms
90 Arms
110 Arms
3 Arms
7*
3A: AC53a:
4 - 4:100 - 7*
≤
10 mArms
≤
1.6 Vrms
≤
130 A
2
s
160 A
p
5 Arms
7*
3A: AC53a:
4 - 4:100 - 7*
≤
10 mArms
≤
1.6 Vrms
≤
525 A
2
s
325 A
p
15 Arms
7*
3A: AC53a:
4 - 4: 100 - 7*
≤
10 mArms
≤
1.6 Vrms
≤
1800 A
2
s
600 A
p
30 Arms
50*
3A: AC53a:
4 - 4:100 - 50*
≤
25 mArms
≤
1.8 Vrms
≤
6600 A
2
s
1150 A
p
40 Arms
50*
3A: AC53a:
4 - 4: 100 - 50*
≤
25 mArms
≤
1.8 Vrms
≤
18000 A
2
s
1900 A
p
2
Specifications are subject to change without notice (26.03.2010)
RSC -AAM60/RSO.....
Thermal Specifications Output Module
RSO ..10
Operating temperature
Storage temperature
Junction temperature
R
th
junction to case
-20° to +70°C
(-4° to +158°F)
-40° to +100°C
(-40° to +212°F)
≤
125°C
≤
0.7 K/W
RSO ..25
-20° to +70°C
(-4° to +158°F)
-40° to +100°C
(-40° to +212°F)
≤
125°C
≤
0.5 K/W
RSO ..50
-20° to +70°C
(-4° to +158°F)
-40° to +100°C
(-40° to +212°F)
≤
125°C
≤
0.25 K/W
RSO ..90
-20° to +70°C
(-4° to +158°F)
-40° to +100°C
(-40° to +212°F)
≤
125°C
≤
0.1 K/W
RSO ..110
-20° to +70°C
(-4° to +158°F)
-40° to +100°C
(-40° to +212°F)
≤
125 °C
≤
0.09 K/W
Functional Diagram
Control input
and output
0 to
20 mA
4 to
20 mA
Mains input
1
Load ON
3
5
Wiring Diagram
Mounting and connection of control module
Supply
A
B
Load output
2
4
6
Supply/
Control input
Accessories
Heatsinks
Fuses
Temperature limit switch
Power supply
For further information refer
to “General Accessories”.
M
Dimensions
RSO .....
***
***
***
RSC-AAM60
**
Temperature limit switch
**
**
***
Heat
sink
compound
39
***
**
**
** =
±
0.4 mm
*** =
±
0.5 mm
All dimensions in mm
2
All dimensions in mm
Specifications are subject to change without notice (26.03.2010)
3
RSC -AAM60/RSO.....
Heatsink Dimensions
RSO ..10
Load
current [A]
Thermal resistance
[K/W]
(load current versus ambient temperature)
RSO ..25
Power
dissipation [W]
Temp. pro-
tection [°C]
16
15
14
13
12
11
10
9
7
5
3
1
0.97
1.1
1.2
1.3
1.4
1.6
1.8
2.1
2.8
4.2
7.4
23.8
20
0.81
0.88
0.97
1.1
1.2
1.3
1.5
1.7
2.3
3.5
6.2
19.8
30
0.65
0.71
0.77
0.85
0.95
1.1
1.2
1.4
1.9
2.8
4.9
15.9
40
0.48
0.53
0.58
0.64
0.71
0.80
0.90
1
1.4
2.1
3.7
11.9
50
0.32
0.35
0.39
0.43
0.47
0.53
0.60
0.69
0.93
1.4
2.5
7.9
60
62
57
52
47
42
38
80°C
Load
current [A]
Thermal resistance
[K/W]
Power
dissipation [W]
Temp. pro-
tection [°C]
25
22.5
20
17.5
15
12.5
10
7.5
5
2.5
T
A
0.66
0.76
0.88
1.1
1.3
1.6
2.1
2.9
4.5
9.4
20
0.55
0.63
0.74
0.87
1.1
1.3
1.7
2.4
3.8
7.8
30
0.44
0.51
0.59
0.70
0.85
1.1
1.4
1.9
3
6.3
40
0.33
0.38
0.44
0.52
0.63
0.79
1
1.4
2.3
4.7
50
0.22
0.25
0.29
0.35
0.42
0.53
0.69
0.96
1.5
3.1
60
91
79
68
57
47
38
29
21
13
6
T
A
80°C
33
29
21
14
8
3
Ambient temp. [°C]
Ambient temp. [°C]
RSO ..50
Load
current [A]
Thermal resistance
[K/W]
Power
dissipation [W]
Temp. pro-
tection [°C]
RSO ..90, RSO ..110
Load
current [A]
Heatsink/Thermal
resistance [K/W]
Power
dissipation [W]
Temp. pro-
tection [°C]
50
45
40
35
30
25
20
15
10
5
0.33
0.38
0.44
0.52
0.63
0.78
1
1.4
2.2
4.5
20
0.28
0.32
0.37
0.43
0.52
0.65
0.84
1.2
1.8
3.8
30
0.22
0.25
0.29
0.35
0.42
0.52
0.67
0.93
1.4
3
40
0.16
0.19
0.22
0.26
0.31
0.39
0.50
0.69
1.1
2.3
50
0.11 181
0.13 158
0.15 136
0.17 116
0.21 96
0.26 77
0.34 60
0.46 43
0.72 28
1.5
60
13
T
A
80°C
90
80
70
60
50
40
30
20
10
0.13
0.19
0.27
0.33
0.41
0.54
0.75
1.2
2.5
20
0.10
0.15
0.22
0.28
0.35
0.45
0.63
0.99
2.1
30
0.07
0.12
0.18
0.22
0.28
0.36
0.50
0.79
1.7
40
0.04
0.08
0.13
0.17
0.21
0.27
0.38
0.59
1.2
50
-
304
0.04 260
0.09 219
0.11 181
0.14 145
0.18 111
0.25
0.39
0.83
60
80
51
24
T
A
80°C
Ambient temp. [°C]
Ambient temp. [°C]
Heatsink Selection
Carlo Gavazzi Heatsink
(see Accessories)
No heatsink required
RHS 300 Assy or backplate
RHS 301 Assy
RHS 301 F Assy
Consult your distributor
Thermal resistance
R
th s-a
> 8.0
5.0
0.8
0.25
< 0.25
K/W
K/W
K/W
K/W
K/W
Compare the value found in the load current versus tempe-
rature chart with the standard heatsink values and select the
heatsink with the next lower value.
It is recommended to protect the solid state relay against
overheating. Therefore the chart also states the maximum
switching temperature (70, 80 or 90 °C) for the optional
temperature limit switch.
4
Specifications are subject to change without notice (26.03.2010)
RSC -AAM60/RSO....
Housing Specifications
Weight
RSO ..10, ..25, ..50
RSO ..90, ..110
Housing material
Colour
Base plate
@
≤
50 A
@
≥
90 A
Potting compound
Approx. 275 g
Approx. 385 g
Noryl, glass-reinforced
Black
Aluminium, nickel-plated
Copper, nickel-plated
Polyurethane, black
Relay
Mounting screws
Mounting torque
Control terminal
Mounting screws
Mounting torque
Power terminal
Mounting screws
Mounting torque
M5
≤
1.5 Nm
M3
≤
0.5 Nm
M5 x 6
≤
1.5 Nm
Applications
The output module RSO ..110
is recommended for motors
up to 22 kW @ 400 V. The
RSO ..110 is designed for use
in applications with high surge
current conditions. Care must
be taken to ensure proper heat-
sinking when the relays are to
be used at high nominal cur-
rents. Adequate electrical con-
nection between relay termi-
nals and cable must be ensured.
Example 1:
Power dissipation -
RSO 40110:
I
load
= 40 Arms = 111 W
See previous page.
Example 2:
Motor: 3 kW, 4 HP
3 x 400 VAC, 4-pole
T
A
: 50°C
Starting time:
≤
5 s
For this application RSC-AAM60
must be used. The output
module RSO4025 is selected
according to the Selection Guide.
The
smallest
heatsink
required is 1 K/W, and the
power dissipation is 25 W.
This gives:
Control module:
RSC-AAM60
Output module: RSO 4025
Heatsink:1K/W
1/L
1
3/L
2
5/L
3
A
B
Connection to the mains
Since no motor protective
circuitry is included in the
RSC/RSO, the motor must
be protected in the usual
way, i.e. either by a thermal
relay, a PTC-resistor or a
Klixon bimetal temperature
switch near the motor windings.
Transient voltage protection
With an unfiltered main supply,
voltage transient may occur.
Since these transients could
have a high energy content, it
is advisable to use varistors
to protect the output module.
1/L
1
3/L
2
5/L
3
A
B
Pilot
voltage
The varistors are already
mounted in the RSO output
If short circuit protection is re- module and they are selected
quired, fuses F1 to F3 should according to the rated opera-
be ultrafast and selected ac- tional voltage.
cording to the load integral
(I
2
t) of the RSO output module
and the motor load.
2/T
1
4/T
2
6/T
3
M
Pilot
voltage
2/T
1
4/T
2
6/T
3
Energy saving for motors in idle mode
When motors are running idle, When the motor is idle, d1 will
it not necessary to maintain a switch the control current from
full magnetic field, as is the I
1
> 20 mA to I
2
, which is
case when the motor has to adjusted to a value at which
produce full torque. By lower- the motor is still running at full
ing the motor voltage, power speed, but at a lower voltage.
losses inside the motor are Please remark that this type of
also reduced.
phase-angle controlled voltage
reduction, demands additional
filtering to fulfill EMC regulations.
M
-
+
Stabilized
voltage
Overload protection by ther-
mal relay
Ie
Full/Id
I
2
R2
A
B
I
1
d1
1/L
1
3/L
2
5/L
3
R1
2/T
1
4/T
2
6/T
3
M
GND
Specifications are subject to change without notice (26.03.2010)
5
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