Experiment 1: Multimeter Measurements on dc resistive Circuits

FAKULTI TEKNOLOGI KEJURUTERAAN ELEKTRIK DAN ELEKTRONIK

Lab 3	Variable Speed Drive (VFD) [25 Marks]
BVE2415 Electrical Machines & Drives Integration

Taxonomy Level
Cognitive		Psychomotor		Affective
C1 – Remember	C4 – Analyze	P1 – Imitation	P4 – Articulation	A1 – Receiving	A4 – Organization
C2 – Understand	C5 – Evaluate	P2 – Manipulation	P5 – Naturalization	A2 – Responding	A5 – Internalizing
C3 – Apply	C6 – Create	P3 – Precision		A3 – Valuing

Mapping to CO/PO
CO2	Built control algorithm of programmable logic control (PLC), microcontroller, and Variable Frequency Drive (VFD). (P4, PLO2)
CO3	Follow safety regulation in handling electrical machine and drive integration equipment. (A3, PLO8)
PO Mapping for this Assessment
PLO1	Knowledge	PLO4	Communication Skills	PLO7	Technopreneurship & Management Skills
PLO2	Practical Skills	PLO5	Social Responsibility	PLO8	Ethics & Professionalism
PLO3	Analytical, Critical Thinking	PLO6	Life-long Learning	PLO9	Teamwork & Leadership

Assessment Details
Lab/Technical Report		Presentation / Demo	Practical Assessment		Others
Submission Due Date :	31 December 2021		No. of Group Member :	3 Students / group

GROUP MEMBERS:
No.	Student ID	Student Name	Section/Grp
1	VD20018	SITI NUR AYU AZELIN BINTI MOHD ISKANDAR
2	VD20031	NURIN FAATIHAH BINTI ABD KARIM
3	VD20017	ABANG MUHD MUSTAQIM BIN ABG MUSTAPHA
4

BVE2415 Electrical Machine & Drive System Integration 2021/22-SEM I

LAB OBJECTIVE

1. 
   Apply right safety precaution in laboratory and workplace.
   

2. 
   To install the wiring circuit for SAKO 1780 VFD and control 3-phase induction motor.
   

3. 
   To applied and familiarize the function code of VFD
   

LAB REQUIREMENT

1. 
   SAKO 1780 VFD
   
2. 
   3-Phase Induction Motor
   
3. 
   Multimeter/Clamp-Meter
   
4. 
   Push Button
   
5. 
   Potentiometer
   
6. 
   Plug 3-pin 13 A
   
7. 
   Tools
   

Introduction

The variable speed drive (VSD, sometimes known as variable frequency drive, VFD) has become a valuable means of making this happen in everyday industrial applications. Previously, before the implementation of VSDs, AC motors were controlled simply by wiring the motor directly to an electrical AC supply. This method was known as direct online (DOL), which provided the motor with the full frequency of the supply (50 Hz in Malaysia and 60 Hz in America). Then, to control the speed of the motor, a mechanical system was employed to take the rotational motion and alter the output depending on the production machine’s requirements. This system is commonly known as a gearbox.

Nowadays, as the knowledge and understanding of power electronics grew, and the technology associated with it became increasingly more advanced, the first VSD was applied. Rapid growth in the world of micro-processors fuelled incredible technological advancement in the VSD, pushing it beyond the age of analogue and into the new digital world, creating a product that can not only control a motor but have its own form of intelligence. VSDs subsequently became better, faster and smaller, enabling them to be used in a whole host of industries and applications.

Task 1-Power Wiring

1. 
   Switch OFF the power supply before making a connection
   
2. 
   Install the power wiring circuit as shown in Figure 1
   
3. 
   Applied Delta connection for 3-phase induction motor
   
4. 
   Check and validate the connection with the instruction before switch ON the power supply
   

Figure 1

1. 
   Identify the input & output of VFD based on product information in Figure 2. Fill in the information in Table 1.
   

Figure 2

Table 1

	Voltage	Current	Frequency
Input	220V	14.0A	47Hz-63Hz
Output	0V-220V	7A	0Hz-400Hz

2. 
   Identify the motor information from motor nameplate as shown in Figure 3. Fill in the information in Table 2
   

Figure 3

Table 2

Parameter	Value
Voltage	440V
Output Power	0.8kW
Frequency	60HZ
RPM	1685

3. 
   Draw the terminal connection wiring for induction motor based on delta connection
   

4. 
   Observed and measure the findings
   

No	Frequency (Hz)	Voltage (V)	Current (A)
1	50	342.4	1.10
2	40	342.4	1.16
3	30	342.4	1.17
4	20	342.4	1.19
5	10	342.4	1.21

5. 
   How to increase the upper limit of frequency converter using the function code. Explain the require setting.
   
6. 
   Set the frequency of VFD to 40 Hz. Modify the acceleration and deceleration time of induction motor using VFD function code. Record the actual time of acceleration and deceleration speed of the induction motor.
   

Set	5 sec	8 sec	10 sec
Acceleration	2.09	3.29	4.10
Deceleration	2.66	2.82	2.98

Task 2-External Input Setting and VFD Function Code

1. 
   Applied Push Button as Digital Input and Install the control circuit as shown in Figure 4
   
2. 
   Applied variable resistor and install at the control circuit as shown in Figure 5
   
3. 
   Set the function code based on the analog input and digital input to control the Forward, Reverse STOP and speed of the induction motor
   

Figure 4. Digital Input on VFD

Figure 5. Analog input of VFD

(a) Explain the function code required to set the digital input and analog in

REPORT

The report must include the following items

1. 
   Introduction Gives introduction of laboratory 3 which include the theoretical background of all the instructions used.
   
2. 
   Methodology Explain all the steps carried out to complete the lab session. Include the flowchart.
   
3. 
   Result and discussion. Show all the results. Explain how the VFD works and function code required to set the digital and analog input respectively.
   
4. 
   Conclusion Summarize the laboratory 3 (conclude your work, summarize the results that you have achieved and suggest any improvement can be made to improve the result)