RSO4025 - Carlo Gavazzi Group

Specifications are subject to change without notice (30.09.2005) 1

Solid State Relay

Soft starting/stopping

Control module

Output module

Control input type

Multivoltage

Rated operational voltage

Rated operational current

•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

Product Description Ordering Key

Type Selection, Output Module

Type Selection, Control Module

Control current Mains Max. operational voltage Type Number

0-20 mA/4-20 mA Multivoltage 600 VAC RSC-AA M 60

Motor Contr ollers

3-Phase Analog Power Contr oller

Types RSC-AAM60/RSO .....

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.

Rated operational voltage Rated operational current

10 A 25 A 50 A 90 A 110 A

3 x 220 VAC RSO 2210 RSO 2225 RSO 2250 RSO 2290 RSO 22110

3 x 400 VAC RSO 4010 RSO 4025 RSO 4050 RSO 4090 RSO 40110

3 x 480 VAC RSO 4810 RSO 4825 RSO 4850 RSO 4890 RSO 48110

3 x 600 VAC RSO 6050 RSO 6090 RSO 60110

RSC-AA M 60

RSO 4050

General Spec., Control Module Control Specifications

Minimum output voltage Power supply minus 8 VDC

Output current

short-circuit protected ≤150 mA DC

Operating temperatur e - 2 0 °t o + 7 0 ° C ( - 4 ° t o +158°F)

Storage temperature

-40° to +100°C (-40° to +212°F)

Thermal Specifications

Operational voltage range

Line to line 150 to 660 VACrms

Operational frequency range 45 to 65 Hz

Supply current

@ no output current < 30 mA

@ max. output current < 180 mA

Supply voltage range 10 to 32 VDC

CE-marking Yes

Approvals UL, CSA

2Specifications are subject to change without notice (30.09.2005)

RSC -AAM60/RSO.....

Control current

A-input 0 to 20 mA

B-input 4 to 20 mA

Input impedance 250 Ω

Power supply reset time ≤300 ms

Response time

(input to trigger outputs) ≤1 cycle

Control Input Specifications

Rated insulation voltage

Input to trigger outputs ≥4000 VACrms

Insulation Control Module

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.

General Specifications, Output Module

Output Specifications, Output Module

RSO 22... RSO 40... RSO 48... RSO 60...

Operational voltage range

Line to line 150 to 250 VACrms 220 to 420 VACrms 400 to 510 VACrms

400 to 625

VACrms

Non-rep. voltage 1200 Vp1200 Vp1200 Vp1600 Vp

Varistor voltage 275 VAC 420 VAC 510 VAC 625 VAC

CE-marking Yes Yes Yes Yes

RSO ..10 RSO ..25 RSO ..50 RSO ..90 RSO ..110

Rated operational current

AC 51 16 Arms 25 Arms 50 Arms 90 Arms 110 Arms

AC 53a 3 Arms 5 Arms 15 Arms 30 Arms 40 Arms

Off-state leakage current ≤10 mArms ≤10 mArms ≤10 mArms ≤25 mArms ≤25 mArms

On-state voltage drop ≤1.6 Vrms ≤1.6 Vrms ≤1.6 Vrms ≤1.8 Vrms ≤1.8 Vrms

I2t for fusing t=1-10 ms ≤130 A2s≤450 A2s≤1680 A2s≤6600 A2s≤18000 A2s

Critical dI/dt ≥50 A/µs ≥50 A/µs ≥50 A/µs ≥100 A/µs ≥100 A/µs

Non-rep. surge current

t=10 ms 160 Ap300 Ap580 Ap1150 Ap1900 Ap

Operation Diagram

Output as a function of control current @cos(ø) = 0.9

100

[%]

[mA]

0 5 10 15 20

4 8 12 16 20

Urms/Un

P/Pn

Specifications are subject to change without notice (30.09.2005) 3

RSC -AAM60/RSO.....

RSO ..10 RSO ..25 RSO ..50 RSO ..90 RSO ..110

Operating temperature -20°to +70°C -20°to +70°C -20°to +70°C -20°to +70°C -20°to +70°C

(-4°to +158°F) (-4°to +158°F) (-4°to +158°F) (-4°to +158°F) (-4°to +158°F)

Storage temperature -40°to +100°C -40°to +100°C -40°to +100°C -40°to +100°C -40°to +100°C

(-40°to +212°F) (-40°to +212°F) (-40°to +212°F) (-40°to +212°F) (-40°to +212°F)

Junction temperature ≤125°C≤125°C≤125°C≤125°C≤125 °C

Rth junction to case ≤0.7 K/W ≤0.5 K/W ≤0.25 K/W ≤0.1 K/W ≤0.09 K/W

Thermal Specifications Output Module

Wiring Diagram

Mounting and connection of control module

Functional Diagram

246

135

Mains input

Load output

Control input

and output

0 to

20 mA

4 to

20 mA

Supply Load ON

Supply/

Control input

Dimensions

RSO ..... RSC-AAM60

***

** = ±0.4 mm

*** = ±0.5 mm

Heat

sink

compound

All dimensions in mm All dimensions in mm

Temperature limit switch

***

Heatsinks

Fuses

Temperature limit switch

Power supply

For further information refer

to “General Accessories”.

Accessories

4Specifications are subject to change without notice (30.09.2005)

0.97 0.81 0.65 0.48 0.32 62

1.1 0.88 0.71 0.53 0.35 57

1.2 0.97 0.77 0.58 0.39 52

1.3 1.1 0.85 0.64 0.43 47

1.4 1.2 0.95 0.71 0.47 42

1.6 1.3 1.1 0.80 0.53 38

1.8 1.5 1.2 0.90 0.60 33

2.1 1.7 1.4 1 0.69 29

2.8 2.3 1.9 1.4 0.93 21

4.2 3.5 2.8 2.1 1.4 14

7.4 6.2 4.9 3.7 2.5 8

23.8 19.8 15.9 11.9 7.9 3

20 30 40 50 60

RSO ..10

Ambient temp. [°C]

80°C

Thermal resistance

[K/W] Power

dissipation [W]

Load

current [A] Temp. pro-

tection [°C]

Ambient temp. [°C]

80°C

22.5

17.5

12.5

7.5

2.5

Thermal resistance

[K/W] Power

dissipation [W]

Load

current [A] Temp. pro-

tection [°C]

RSO ..25

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

Rth s-a > 8.0 K/W

5.0 K/W

0.8 K/W

0.25 K/W

< 0.25 K/W

Heatsink Selection

RSO ..50

Ambient temp. [°C]

80°C

Thermal resistance

[K/W]

Load

current [A] Power

dissipation [W] Temp. pro-

tection [°C]

Ambient temp. [°C]

80°C

Heatsink/Thermal

resistance [K/W]

Load

current [A] Power

dissipation [W] Temp. pro-

tection [°C]

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.

RSO ..90, RSO ..110

RSC -AAM60/RSO.....

Heatsink Dimensions (load current versus ambient temperature)

0.66 0.55 0.44 0.33 - 91

0.76 0.63 0.51 0.38 0.25 79

0.88 0.74 0.59 0.44 0.29 68

1.1 0.87 0.70 0.52 0.35 57

1.3 1.1 0.85 0.63 0.42 47

1.6 1.3 1.1 0.79 0.53 38

2.1 1.7 1.4 1 0.69 29

2.9 2.4 1.9 1.4 0.96 21

4.5 3.8 3 2.3 1.5 13

9.4 7.8 6.3 4.7 3.1 6

20 30 40 50 60

-----304

- - - - - 260

0.27 - - - - 219

0.33 0.28 - - - 181

0.41 0.35 0.28 - - 145

0.54 0.45 0.36 0.27 - 111

0.75 0.63 0.50 0.38 0.25 80

1.2 0.99 0.79 0.59 0.39 51

2.5 2.1 1.7 1.2 0.83 24

20 30 40 50 60

0.33 0.28 - - - 181

0.38 0.32 0.25 - - 158

0.44 0.37 0.29 - - 136

0.52 0.43 0.35 0.26 - 116

0.63 0.52 0.42 0.31 - 96

0.78 0.65 0.52 0.39 0.26 77

1 0.84 0.67 0.50 0.34 60

1.4 1.2 0.93 0.69 0.46 43

2.2 1.8 1.4 1.1 0.72 28

4.5 3.8 3 2.3 1.5 13

20 30 40 50 60

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.

Specifications are subject to change without notice (30.09.2005) 5

Weight

RSO ..10, ..25, ..50 Approx. 275 g

RSO ..90, ..110 Approx. 385 g

Housing material Noryl, glass-reinforced

Colour Black

Base plate

@ ≤50 A Aluminium, nickel-plated

@ ≥90 A Copper, nickel-plated

Potting compound Polyurethane, black

Housing Specifications

Applications

RSC -AAM60/RSO....

Energy saving for motors in idle mode

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 surg e

current conditions. Care must

be taken to ensure pr oper 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:

Iload = 40 Arms = 111 W

See previous page.

Example 2:

Motor: 3 kW, 4 HP

3 x 400 V AC, 4-pole

TA: 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

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.

If short circuit pr otection is re-

quired, fuses F1 to F3 should

be ultrafast and selected ac-

cording to the load integral

(I2t) of the RSO output module

and the motor load.

When motors are running idle,

it not necessary to maintain a

full magnetic field, as is the

case when the motor has to

produce full torque. By lower-

ing the motor voltage, power

losses inside the motor are

also reduced.

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.

The varistors are already

mounted in the RSO output

module and they are selected

according to the rated opera-

tional voltage.

When the motor is idle, d1 will

switch the control current from

I1> 20 mA to I2, which is

adjusted to a value at which

the motor is still running at full

speed, but at a lower voltage.

Please remark that this type of

phase-angle controlled voltage

reduction, demands additional

filtering to fulfill EMC regulations.

1/L13/L25/L3

2/T14/T26/T3

Pilot

voltage

Overload protection by ther-

mal relay

1/L13/L25/L3

2/T14/T26/T3

Pilot

voltage

Relay

Mounting screws M5

Mounting torque ≤1.5 Nm

Control terminal

Mounting screws M3

Mounting torque ≤0.5 Nm

Power terminal

Mounting screws M5 x 6

Mounting torque ≤1.5 Nm

1/L13/L25/L3

2/T14/T26/T3

GND

I2I1d1

Full/Id

Stabilized

voltage

6Specifications are subject to change without notice (30.09.2005)

Selection Guide

400 VACrms and 480 VACrms motors

Output module RSO ..10 RSO ..25 RSO ..50 RSO ..90 RSO ..110

Max. motor size 3 HP/2.2 kW 5 HP/4 kW 15 HP/11 kW 20 HP/15 kW 30 HP/22 kW

600 VACrms motors

Output module RSO 6050 RSO 6090 RSO 60110

Max. motor size 15 HP 30 HP 40 HP

Applications (cont.)

RSC -AAM60/RSO.....

In order to achieve a 4 to 20

mA signal from a 12 or 24

VDC source, a resistor and a

potentiometer should be con-

nected in series with the volt-

age source and the RSC con-

troller.

We define the Imax. to be e.g.

24 mA, which means that the

series resistors must be:

R1 (12 V) = U/I - Rint =

12 V/24 mA - 250 Ω= 250 Ω

R1 (24 V) = U/I - Rint =

24 V/24 mA - 250 Ω= 750 Ω

If the minimum current is

defined to be e.g. 2.4 mA

and the 250 ΩRint input

resistance of the RSC is

also calculated in:

R2 (12 V) = U/I - R1- Rint =

12/2.4 - 250 - 250 = 4500 Ω

R2 (24 V) = U/I - R1- Rint =

24/2.4 - 750 - 250 = 9000 Ω

Wiring Diagram (0-10 VDC control)

+ Supply

A (0-20mA)

B (4-20mA)

- Supply

220Ω

0.25W

0-10 VDC