Swiss Rotors SR P-HE User manual

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Version 1.0.1
FanSet
FANSET SR P/A-HE
www.swissrotors.com
CENTRIFUGAL FANS OPERATION AND MAINTENANCE MANUAL FOR IMPELELRS:
190-315

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Version 1.0.1
Please read the following documentation carefully before installation of our product. In case of

1. TABLE OF CONTENT
2 INTRODUCTION.............................................................................................................................2
2.1 Preface...........................................................................................................................................3
2.2 Disclaimer.......................................................................................................................................3
3 PRODUCTDESCRIPTION...............................................................................................................4
3.1 Construction...................................................................................................................................4
3.2 Principleofoperation.....................................................................................................................6
3.3 Operationallimits...........................................................................................................................7
3.4 Air Volume measuring...................................................................................................................7
4 INSTALLATION–MOTOR CONNECTION.....................................................................................9
4.1 General safety................................................................................................................................9
4.2 Productdescription........................................................................................................................9
 
4.4 Connection & Diagrams...............................................................................................................11
4.5 Communication...........................................................................................................................15
4.5.1 Analog input.................................................................................................................................15
4.5.2 Modbus RTU................................................................................................................................15
4.5.3 Modbus parameters...................................................................................................................16
4.6 Protections...................................................................................................................19
 
 
5.2 Guidelines for avoiding incorrect operation.............................................................................21
5.3 Cleaning................................................................................................................................21
6 TRANSPORTATION........................................................................................................................21
6.1 Packing.........................................................................................................................................21
6.2 Quality control................................................................................................................................22
6.2.1 Examine the package:...................................................................................................................22
6.2.2 Examine the unit:...........................................................................................................................22
6.3 Storage...........................................................................................................................................22
7 SUPPORT......................................................................................................................................22

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2. INTRODUCTION
2.1 Preface
To ensure trouble-free usage of our products we would like to provide the following technical and
commissioning documentation. This manual is to help at every stage of use. Mandatory maintenance
service tasks that are responsibility of the user, from appropriate transportation methods to periodic
inspections. All the crucial information and warnings will be preceded by various caution symbols
as shown below:
Electrical Voltage
Important Information
Useful Hint

start-up. Improper use of the product may void the warranty.
Keep it as a reference for future maintenance and service procedures.
2.2 Disclaimer
The following instruction, unless otherwise stated, applies to all Swiss Rotors FanSet units. In exceptional

protected by international trademark and copyright laws. Swiss Rotors constantly develops its products and
this document is subject to change without notice.
Product Selection Software – FAN SET
To enable you to use our products perfectly, we have developed our own software
solutions. With these, you can control, monitor or design our products as it suits your
products and your needs.
Scan QR code to use Selection Tool
or visit https://selection.swissrotors.com

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Table 1. Swiss Rotors FanSet models and dimensions
3 PRODUCT DESCRIPTION
3.1 Construction


             
  
Swiss Rotors impeller has 7 backward-curved blades in frame. Ventilating cone that are mounted
on the front plate of FanSet has it’s strictly designed shape for each size of the impeller. Series 225,


All parts are made of high quality materials:
- Front plates, inlet cones made of galvanized steel,
- Supports made of steel and painted,
- Impeller material:
 
o SR-A – aluminum alloy
- Electronics housing: Die-cast aluminum.
All parts create perfectly optimized air supply/exhaust device. Depending on customer needs,

before shipment.
FanSet models listed below:
Fan Set Model Rated voltage Rated Output
Power
Max Current Rated/Max
Speed
A B C D E F
[V] [W] [A] [rpm] mm [mm] [mm] [mm] [mm] [mm]
  128 1,9A   96,5  2 
  349   224 199,1 254 15 315 228
  349   221,7 199,1 254 15 315 228
  349 3,5A  235,7  285 15 375 258
  349 3,5A  232,4  285 15 375 258
  374 3,5A  271,2 246,3 358 15  328
  374 3,5A  267,8 246,3 358 15  328
  735 5,4A    254 15 315 228
  735 5,4A  248,1  254 15 315 228
   5,1A  262 221,2 285 15 375 258
   5,1A  258,7 221,2 285 15 375 258
  715 3,8A   261 358 15  328
  715 3,8A  298,4 261 358 15  328
SR-P-HE-315-1.5   5,3A  327,5 282 358 15  328

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Figure 1. FanSet SR190 Series (bottom) and FanSet SR225, SR250, SR315 Series (top)
Figure 2. Swiss Rotors FanSet overall dimensions, see Tab. 1

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3.2 Principle of operation
FanSet is a device used to supply and exhaust air. The engine, mounted in the housing, drives the
impeller located inside. The fan, after accelerating to the dedicated rotational speed, is able to force


fan. Ventilating cone of dedicated diameter is mounted on the opposite side. All parts are made of
high quality materials:
Fig. 3 presents the principle operation of the FanSet inside the Air Handling Unit. It is crucial to note

Figure 3. FanSet’s inside AHU Figure 4. 
Figure 5. Recomended clearance at inlet and outlet side.

be caried out with
proper dimensional requirements.
For the outlet side the proper clearence [A] is equal to 1.2 x impeller diameter (1.2 x D) The
recommended cleareance at the inlet side [B] should be equal to half of the impeller
diameter (D/2).
Exhaust air
Supply air in

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3.3 Operational limits
Impeller units inside the FanSet are prepared to work within temperature conditions oscillating

is adapted to work vertically and horizontally.
Figure 6. Fan Set’s label sticker
Nameplate eld Explanation
Fan Type The manufacturer’s product name to indicate the particular type which has been acquired.
Power Nominal power of engine which is used to drive fan.
Size Nominal size of fan impeller.
Serial number 
warranty purposes.
Quality check date Date of checking and approval of correct operation of the device.
QR Code Unique code to call a service.
Table 2.
3.4 Air volume measuring
FanSet units are equipped with the inlet cone. Air volume measuring device with circular lead is

direction . With the assistance of the measuring device it is possible to control the air volume
depending on the difference in pressure between the static pressure at the inlet cone and the static
pressure on the inlet area. This sensor cannot measure the dynamic pressure in the inlet area. While
Fan Set is tested it is possible to regulate air volume.
The air volume is calculated according to the following formula.
The label consists of the following
information:
Fan Type: The manufacturer’s product name
to indicate the practicular type which has been
acquired.
Power: Nominal power of motor which is used
to drive fan
Size: Nominal size of impeller
Serial number: A set of characters that

used for traceability and warranty purposes.
By serial number and model name it is
possible to identify your product and answer
your question effectively and immediately.
Quality check date: Date of checking and
approval of correct operation of the device.
QR code: Unique code to call a service.
Fan Set
Type
Service needed?
Scan QR
Quality check date (DD/MM/YYYY)
Manufactured in Poland
Serial no.
SR-190.0.1
SR-P-HE-225-0.3
SR-P-HE-225-0.7
SR-P-HE-250-0.3
SR-P-HE-250-0.7
SR-P-HE-315-0.3
SR-P-HE-315-0.7
SR-P-HE-315-1.5
SR-A-HE-225-0.3
SR-A-HE-225-0.7
SR-A-HE-250-0.3
SR-A-HE-250-0.7
SR-A-HE-315-0.3
SR-A-HE-315-0.7
SR-A-HE-315-1.5

8
Version 1.0.1

determined by comparative measurement on a standard test rig. K factor can be converted to the
correspondent k’ using below formula:
Fan Set Type Motor power K-factor value
  23
  36,4
  34,86
  
  49,38
  
  69,91
  36,9
  36,79
  
  49,61
  69,1
  73,13
SR-P-HE-315-15 1,5 kW 71,8
SR-A-HE-315-15 1,5kW 71,32
K-factors were determined during testing under standard conditions.

Swiss Rotors FanSet’s range is
shown on below attached table

8 9
Version 1.0.1
Figure 7. Air Volume measurement method



4 INSTALLATION – MOTOR CONNECTION
4.1 General safety
The following section contains valuable notes and list of mandatory procedures which are
responsibility of the user. Neglecting advices collected in this chapter may result in product
damage or void of warranty. Take time to study carefully whole chapter and make sure everything is
understandable. If you have any questions, please contact support.
FanSet needs to be installed in a way enabling seamless execution of future maintenance
tasks.
CAUTION! Electric Voltage: All motors described in the following manual can be operated,

in any of this operations may result in risk of fatal injury, electric shock, incorrect mounting or product
damage. Installation should be carried out with usage of power lines, without short circuits and with
proper grounding. Follow the connection diagrams dedicated to given motors.
WARNING: Do not open or disassemble the motor while power supply is connected to the device. It
may result in fatal injury caused by electric shock. If it is necessary to open the motor, wait at least
5 minutes after disconnecting from the power supply.
NOTE: It is the user and the installer responsibility to provide the system with the proper grounding
and protection in accordance with national and local standards. Swiss Rotors is not responsible for
any damages or injuries caused by incorrect installation, bad circuits or other failures.
Before installation and operating the motor please read entire instruction carefully! Follow the
connection diagrams to perform successful installation.
4.2 Product description
             
electrical requirements of our customers. To get the right parameters and to ensure proper operation

shows the motors used in the fans and operating parameters – mechanical and electrical.
Note:
           


10
Version 1.0.1
Table 3. 
FAN TYPE MOTOR TYPE RATED
VOLTAGE FREQUENCY
RATED
OUTPUT
POWER
RATED
SPEED
SPEED
CONTROL
OPERATING
TEMP. [C]IP
 EC169W-

  128W 
rpm

RTU
-25  44
    349W 
rpm

RTU
-25  54
    349W 
rpm

RTU
-25  54
    349W 
rpm

RTU
-25  54
    349W 
rpm

RTU
-25  54
    374W 
rpm

RTU
-25  54
    374W 
rpm

RTU
--25  54
    735W 
rpm

RTU
-25  54
    735W 
rpm

RTU
-25  54
     
rpm

RTU
-25  54
     
rpm

RTU
-25  54
    715W 
rpm

RTU
-25  54
    715W 
rpm

RTU
-25  54
SR-P-HE-315-15     
rpm

RTU
-25  54
SR-A-HE-315-15     
rpm

RTU
-25  54

Changing the settings is associated with poor fan performance and risk of motor damage as well as electric

loss of warranty.

10 11
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4.4 Connection & Diagrams
To perform the correct setup, please refer to the following diagrams representing possible ways

in performing in any of this operations may result in risk of fatal injury, electric shock, incorrect
mounting or product damage.
WARNING: Do not open or disassemble the motor while power supply is connected to the device. It
may result in fatal injury caused by electric shock. If it is necessary to open the motor, wait at least
5 minutes after disconnecting from the power supply.
NOTE: Electric system and equipment available at the contractor site must be operated and
maintained in
accordance with the electro-technical regulations.
Notes on proper installation:
• Use fuses at power line
• Check the wires condition before operating. Make sure that there are no short circuits.
 
 
• Use shield cable.
 
cables that are adapted to work with the desired current.
Connection instructions:
1. Remove the Top cover of the terminal strips.
2. Fasten the control and main power wires by screwing them to the connector.
3. Check all connections again and carefully replace the Top cover.
4. Connect the Power supply voltage.
Motor EC169W-B190/44P1-05

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Version 1.0.1
Figure 8. 
Figure 9. 

12 13
Version 1.0.1
Figure 14. 
Motor EC092 series and EC102 series

14
Version 1.0.1
Figure 11. EC137 Series CONNECTION DIAGRAM.
Figure 12. Wires and factory connectors for EC137 Series.

14 15
Version 1.0.1

Incorrect polarity at input AN1 can cause serious damage of the controller.
4.5.2 Modbus RTU
Electronics are equipped with Modbus RTU 485 communication. To connect controllers into chain
use only shielded cables. Shielded wires for grounding connection between controllers is necessary.



4.5 Communication
The motors can be controlled via an analog connection and using the Modbus protocol.


presented below.

4.5.1 Analog input



AN1Min parameter can be set to the desired minimum setpoint. AN1Max parameter can be set to



settable value.




Figure 13. RPM/voltage charts with analogue connection .

16
Version 1.0.1
Drives uses the two-wire system where the communication between master and slave is half duplex,
i.e. it cannot transmit and receive at the same time. Each signal uses one twisted pair line — two
wires twisted around themselves. The signal on one wire is ideally the exact opposite of the signal
on the second wire. Since RS-485 is a multipoint communication system, all devices are connected
to the single twisted-pair cable. The Modbus RTU uses master/slave architecture, where each slave
device has its unique address and responds only to packets addressed to this device. The packets

travels over the single line in both directions. Multiple EC drives can be connected to a control
            
connected to the network is 32. Use parallel connections method to connect multiple frequency
converters.

is needed.
4.5.3 Modbus parameters

To connect PC and drive over
serial line (MODBUS) RS-23/USB
to RS-485, use of converter is
needed.
Default conguration:
MODBUS address: 1 for Fan

START bit: 1
STOP bit: 1
Parity: NONE
Supported MODBUS commands:






Register
CONFIGURATION



Note! ACCESS LEVEL:

1 – Basic user settings
2 – Service settings
RS 237
USB
RS 485
Parallel connections
RS 237
USB
RS 485
"Daisy chain" connection
Compacto
drive
Compacto
drive
Compacto
drive
Compacto
drive
Compacto
drive
Compacto
drive
Rx+; Tx+
Rx-; Tx-
Rx+; Tx+
Rx-; Tx-
Figure 16. Parallel and “Daisy chain” connections via modbus

16 17
Version 1.0.1
Coils
Address Function Range Description
Motor ON/OFF  Indication, 1=ON,

1 Reset Controller  1=Reset controller
Discrete status bits
Address Function Range Description Level
Under Voltage  1=Voltage too low to run 
1 Over Voltage  1=Voltage too high to run 
2 IGBT Overcurrent  1=Overcurrent protection tripped 
3 Hot  1=Temperature protection active, power
reduced

4 Phase Loss  1=Phase or motor sync loss 
5 RESERVED 
6 Parameters CRC   
7 Circuit Fault  1=There was an error detected during circuit
internal check

8 Motor Fault  1=Motor does not behave as expected 
9 Too Hot  1=Converter too hot to operate 
 I2R IGBT Fault  1=Software IGBT protection triggered 
11 – 13 RESERVED 
14 Restart Fault  1=Fault condition repeated several times in a
short time. Converter power should be power
cycled or reset.

15 RESERVED 
16 - 17 RESERVED 
18 Waiting To Stop  1=Motor should be stopped, but is still spin-
ning

19 – 23 RESERVED 
24 RpmReg  Speed regulator active 
25 PowerReg  Power limit regulator active 
26 RESERVED 
27 OvermodReg  Over modulation reached. Converter can no
longer supply the voltage required by motor.

28 RegenReg  Motor is in regeneration. Speed increased to
prevent DC link over voltage

29 IphaseReg  RMS motor phase current limit reached 
 SyncReg  Motor is still in Synchronous mode 

18
Version 1.0.1
Holding Registers
Address Function Range Description LEVEL Resolution
Set point  Performance set point for speed depends on operation
mode.
 
1 Direction  Motor direction:


1 1
2 Maximum Speed MinRPM.. Ma-
xRPM[level+1]
Max rpm allowed in normal operation. External control
will use this as set point maximum.
 1
3 RESERVED
4 MinRPM[level+1]…
MaxRPM

RPM
Minimal allowed speed  1
5 Password  
9788: master password
24681: password for level 1
24681 can be changed


When level is changed, stored values for the level will
be loaded

6 Operation Mode 
2: MODBUS Speed

7 Modbus Address 1..247 Set Modbus address:


1
8 MODBUS connection
detection
 Detection MODBUS connection loos



9 MODBUS connection
detection timeout
 timeout to stop motor after loose connection 1
 RESERVED
11 AN1Max  Voltage for maximum setpoint.
Transfer function is inverted if AN1Max < AN1Min.
1
12 AN1Min  Voltage for minimum setpoint 1 
13 AN1Stop  

1
18 Modbus speed 1-3 

Notice: after baud rate change Modbus communica-
tion will not work, also change baud rate on converter
to get proper working.
19 RESERVED
 RESERVED
21 Password change  new password for level 1

18 19
Version 1.0.1
Input Registers
Address Function Range Description LEVEL Resolution
HW Version Hardware version 1
1 FW Version Firmware version 1
2..3 RESERVED 
4 Speed  RPM 1
5 Controller
temperature
 °C  
6 UDC DC Bus voltage in V  
7 Stator IRMS RMS Stator current in A  
8 Power W  
9 Analogue1  Analogue input 1 voltage  
19 Error Code  7 = motor failed to start repeatedly
6 = under or overvoltage
5 = motor misconnected/faulty
4 = internal frequency converter fault
3 = temperature protection active
2 = active overcurrent protection
1 = slow blink = standby


 RESERVED 
23 Op Minutes Minutes of operation 
24 Op Days  
4.6 Protections
Thermal protection: The electronics are equipped with reducing thermal protection. This function is
a temperature limiter which reduces the output power, when temperature on the controller rises over


Under and over voltage: The electronics are equipped with under and over voltage protection.
Electronics shutdown when the main voltage is not in the required range. See mechanical and

Blocked rotor protection: the electronics are equipped with blocked rotor protection when the rotor
of motor is blocked or it is impossible to rotate it. Electronics automatically retries 25 restarts, than
a manual restart by disconnecting the power supply is required.
Motor phase fail/lose: The electronics are equipped with motor phase fail protection in event
in which one of phase motors is damaged or missing. In such case, electronics stops the motor
immediately.

20
Version 1.0.1
5 MAINTENANCE
5.1 Maintenance
Swiss Rotors strongly recommends checking the condition of fans systematically. Technical control
is obliged to the user. Properly frequent checks allow early detection of irregularities in the system
and may help avoiding serious damages resulting from various random factors. Please refer to our
general proposed inspection checklist presented below.
Phase overcurrent protection: The electronics are equipped with phase overcurrent protection.
Inthis event electronics stops the motor immediately and tries to perform restart automatically.
Rotor failed acceleration: The electronics are equipped with rotor failed acceleration protection hen
the rotor is damaged or hardly rotates. Electronic automatically retries to perform 25 restarts in
1second intervals. If the 25th restarts is still unsuccessful, then manual restart by disconnecting
the power supply is required.
NOTE
Heating the controller over the maximal temperature is not allowed.
Above 105C electronics stops the motor, and restarts it again when the temperature of
controller falls below 75 C. However, if the controller is overheating and motor was shutdown,
disconnect the power supply (using safety switch) and wait at least 20 minutes before
performing any service tasks. In case of overheating of controller, the metal parts of them are
very hot and could cause serious damage to your skin.
If controller starts reducing output power during operation, this may be a reason of
overheating. Ensure air ow through the ribs/motor. Overheating problem appears in the
case of installation of the controller in the space without the proper air ow.
Verify OK
Unit is free of mechanical damage. There are no traces of rust.
There are no unwanted objects inside the casing which are not internal fan parts.
The impeller rotates without rubbing against other elements
The impeller has no undesirable vibrations during operation.
There are no unwanted objects inside the casing which are not internal fan parts.

The fan blades are not damaged, there are no cracks.
Engine wires are not damaged – no signs of mechanical damage.
Table 5. General maintenance checklist