Danfoss ACCSCS Data sheet

Data Sheet

Fan speed controller

Accessory

Type ACCSCS Electronic controller suitable for fan speed control

ACCSCS are designed to regulate the speed of fans and pumps proportionally and continuously. They function as a simple voltage regulator whose command signal (0..10 V or

4..20 mA or PWM) comes from an external regulating device.

It’s possible to connect more than one motor in parallel provided that the maximum input regulating current is less than the controller nominal current.

Features:

Three phase model

• Power 400 V

• Input voltage three phase 400 V AC -15 +10%, 50/60 Hz

• Output voltage 30 – 99% of supply line

• Command signal 0 – 10 V, 4 – 20 mA and PWM 5 / 10 V

• Aux output supply 10 V aux power (Imax = 50 mA) for external potentiometer

• Output relay that commute in case of phase loss or overtemperature

AI205486421156en-000702

Features

Description

Power supply

400 V AC

Test

According to EN60730 this device provides a type 1 action, it is an incorporated controller suitable for assembly on a at surface and for use in conditions of normal pollution.

Storage conditions

-20 – 70 °C

Index of protection

Plastic covering which is self-extinguishing: IP55

EMC (Electro-Magnetic Compatibility

The controller has a built-in suppression lter to meet all required CE directives. Danfoss controls are designed to be installed inside a machine or a standard electrical cabinet and is therefore considered a component. It is the installer’s responsibility to observe the criteria of compatibility to guarantee compliance with the directives.

Wiring

• All wiring should conform to local regulations and must be made by authorized personnel only.

• All connections wires must ensure ecient insulation also at temperatures exceeding 80 °C.

• Attach the controller to a non-painted plate with anti-corrosive treatment. If the length of the motor cable exceeds 5 m, use shielded cable. To avoid dispersion currents, both ends of the motor cable shield, the motor earth, and the controller earth must be connected to the same earth pole.

• If the control cable length exceeds 2 m, use shielded cable, connecting the shield only at the end of the controller.

• Ensure that the control 0 V is not connected to earth. If the power, motor and control cables exceed 10 m, make sure they are separated by at least 0.3 m to avoid creating a coupling eect.

• To protect the power line and the regulator, the installation technician must install extra-rapid fuses upstream of the power supply. If a dierential circuit breaker is installed, it must be of the delayed action type.

Features

Description

Product No.

080G0217

080G0218

080G0219

080G0220

Power - 400 V AC

5.5 K V A

8 K V A

13 K V A

19 K V A

Current nom (Arms)

8 A

12 A

20 A

28 A

Input voltage

Three phase 400 V AC -15 +10%, 50/60 Hz

Output voltage

30 – 99% of supply line

Command signal

Signal 0 – 10 V, 4 – 20 mA, PWM 5/10 V and Modbus

Analog output

10 V (max load 50 mA)

Digital output

Emergency relay 1 A-250 V AC / 3 A-30 V DC

Protections

Class II at the input terminal block (4 K V) Class I as regards the accessible parts Phase lost, overheating (the regulator restores automatical)

Operating temperature

-10 – 50 °C (-20 °C when the power is maintained)

Max heat sink tempearture

75 °C

Storage temperature

-20 – 80 °C

Protection degree

Self-extinguishing plastic covering IP55

Dimensions (mm) - LxHxP

230 x 165 x 150

230 x 265 x 165

230 x 265 x 230

340 x 270 x 235

Fan speed controller, Accessory

Product specication

General features

Table 1: General features

Technical data

Table 2: Three phase

Modbus address

Example: Request by the MASTER to read the variable “output voltage” identied with address 0x0B: 01 03 00 0B 00

01.

Request by the MASTER to write on the variable “Modbus input command” identied with address 0x401: 01 06 04 01 00 01.



CAUTION:

The regulation command via Modbus requires rewriting in its address within the time out (default 30 seconds) even if the value remains unchanged.

Over the time out, in absence of any other command signal, the regulator switch OFF the power outputs.

Vout %

limit V1

IN.MIN IN.MAX 100%

command

Danfoss

80G8092A

Vout %

limit V1

IN.MIN IN.MAX 100%

command

Danfoss

80G8092B

HEX address

Variable

Unit

Reading/

Writing

Min. value

Max. value

Description

0x00B

Voltage output

%L–

–

Indicates the output percentage voltage / speed

0x00D

Alarm

NumL–

–

0=no error 1=phase lost 3=over temperature 5=incorrect settings 6=timeout MDB

0x400

Stop regulation

Num

L/S01

Write the value 1 to enable writing and disable the running place to 0 to re-enable the running

0x421

Regulator address

Num

L/S

(1)

247

Indicates the modbus address (slave) - default 0x01

0x422

Baudrate

Num

L/S

(1)

(=1 if 9600bps) (=2 if 19200) (=3 if 38400) - default =2

0x423

Stop Bit

Num

L/S

(1)

(=1 if 1 stop bit) (=2 if 2 stop bit) - default=1

0x424

Parity

Num

L/S

(1)

(=1 if no parity) (=2 if even parity) (=3 if odd parity) - default =1

0x425

Timeout

Sec

L/S

(2)

240

Indicates the time within which the master must renew his command regulation

0x401

Command by Modbus

L/S

(2)

100

Variable for command the regulation (0-100) by Modbus

0x402

Min. input%L/S

(2)

Max input

Voltage signal command / speed V1

0x403

Max input%L/S

(2)

Min. input

100

Voltage signal command / speed V2

0x404

Min. V1 voltage

L/S

(2)

Lim. min. motor

Max. V2 Voltage

Voltage / speed of IN.MIN. command signal point

0x405

Max. V2 voltage

L/S

(2)

Min. V1 voltage

Lim. max. motor

Voltage / speed of IN.MAX. command signal point

0x407

Reset

Num

L/S

(2)

(=2 to reset and load the controller’s default values) (=3 to restart the regulator after changing the parameter / s when is required the reboot)

0x40A

Lim. Speed V1

L/S

(2)

Lim. min. motor

V2 limit

Voltage that replaces V1, when V1 LIMIT>V1

0x411

Kick start

Num

L/S

(2)

(=0 kick start enable) (=1 kick start able)

0x41E

Regulation prole

Num

L/S

(2)

(=1 linear prole) (=2 axial fans prole)

Fan speed controller, Accessory

Table 3: Modbus address

(1)

Necessary reebot after writing the changes.

(2)

Writing possible only if the parameter “Adjustment Lock” is set to 1.

Figure 1: Voltage graph 1

Figure 2: Voltage graph 2

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