TECO SG2 Series User manual

I
T able of Contents
Chapter 1: Getting Started 1
ExaminationbeforeInstallation 2
EnvironmentalPrecautions 2
SG2 Model Identification 3
QuickStartSetup 4
Chapter 2: Installation 10
GeneralSpecifications 10
Product Specifications 12
Mounting 13
Wiring 15
Chapter 3: ProgramTools 18
PCProgrammingSoftware“SG2Client” 18
MemoryCartridge 26
LCDDisplayandKeypad 27
Chapter 4: Relay Ladder Logic Programming 44
CommonMemoryTypes 44
SpecialtyMemoryTypes 46
OutputInstructions 47
Counter Instructions 49
High Speed Counters (DCVersion Only) 55
TimerInstructions 57
RealTimeClock(RTC)Instructions 65
ComparatorInstructions 70
HMIDisplayInstructions 72
PWM Output Instruction (DCTransistor Output Models Only) 74
Data Link/Remote I/O Instruction (SG2-20Vxx Models Only) 75
Chapter 5: Function Block Diagram Programming 77
CoilBlockInstruction 77
PWMFunctionBlock 78
SHIFTFunctionBlock 79
Logic Block Instructions 80
AND Logic Block 80
AND (Edge) Logic Block 80
NAND Logic Block 81
NAND (Edge) Logic Block 81
OR Logic 81

II
NOR Logic 81
XOR Logic 82
SR Logic Block 82
NOT Logic Block 82
Pulse Logic Block 82
FunctionBlock 83
Common Counter Function Block 83
High Speed Counter Function Block 84
TimerFunctionBlock 85
RTCFunctionBlock 86
AnalogcomparatorFunctionBlock 87
Appendix: Application Illustration 89

Chapter 1: Getting Started 1
Chapter 1: Getting Started
The SG2 tiny smart Relay is an electronic device. For safety reasons, please carefully read and
follow the paragraphs with "WARNING" or "CAUTION" symbols. They are important safety
precautions to be aware of while transporting, installing, operating, or examining the SG2
Controller.
W ARNING: Personal injury may result from improper operation.
CAUTION: The SG2 smart relay may be damaged by improper operation.
Precaution for Installation
Compliance with the installation instructions and the user manual is absolutely necessar y . Failure to
comply could lead to improper operation, equipment damage or in extreme cases even death, serious bodily
injury
or considerable damage to property .
When installing the open-board models, insure that no wiring or foreign materials can fall into the exposed
circuits
and components. Damage to equipment, fire , or considerable damage to property could result.
Always switch off power before you wire , connect, install , or remove any module.
The wiring for the SG2 smart relay is open and exposed. For the open-board models, all electrical
Never install the product in an environment beyond the limits specified in this user manual such as high
or Wiring
Improper wiring and installation could lead to death, serious bodily injury or considerable damage to
prop
The SG2 smart relay should only be installed and wired by properly experienced and certified personnel.
Make sure the wiring of the SG2 smart relay meets all applicable regulations and codes including local and
Be sure to properly size cables for the required current rating.
Always separate AC wiring, DC wiring with high-frequency switching cycles, and low-voltage signal wiring.
components are exposed. For this reason, it is recommended the SG2 smart relay be installed in an enclosure
or cabinet to prevent accidental contact or exposure to the electrical circuits and components.
t
emperature, humidity , dust, corrosive gas, vibration, etc.
Precaution f
erty .
national standards and codes.

Chapter 1: Getting Started 2
Precaution for Operation
T o insure safety with the application of the SG2 smart relay , complete functional and safety testing must be
con
When the power is on, never contact the terminals, exposed conductors or electrical components. Failure
to c
It is strongly recommended to add safety protection such as an emergency stop and external interlock cir cuit in
Examination before Installation
and examined before shipment. Please carry out the
ered.
e SG2 smart relay to the
Contact
ducted. Only run the SG2 after all testing and confirming safe and proper operation is complete. Any
potential faults in the application should be included in the testing. Failure to do so could lead to improper
operation, equipment damage or in extreme cases even Death, serious bodily injury or considerable damage to
property.
omply could lead to improper operation, equipment damage or in extreme cases even death, serious bodily
injury
or considerable damage to property .
case the SG2 smart relay operation must be shut down immediately .
Every SG2 smart relay has been fully tested
following examination procedures after unpacking your SG2 smart relay.
• Check to see if the model number of the SG2 matches the model number that you ord
• Check to see whether any damage occurred to the SG2 during shipment. Do not connect th
power supply if there is any sign of damage.
if you find any abnormal conditions as mentioned above.
Environmental Precautions
s very important. It relates directly to the functionality
unt the unit vertically
: 32°F - 131°F (0°C - 55°C)
nment
gas
e gases and liquids
m contacting the SG2 smart relay
mounting device should be
The installation site of the SG2 smart relay i
and the life span of your SG2. Please carefully choose an installation site that meets the following
requirements:
• Mo
• Environment temperature
• A void placing SG2 close to any heating equipment
• A void dripping water , condensation, or humid enviro
• A void direct sunlight
• A void oil, grease, and
• A void contact with corrosiv
• Prevent foreign dust, flecks, or metal scraps fro
• A void electric-magnetic inter ference (soldering or power machiner y)
• A void excessive vibration; if vibration cannot be avoided, an anti-rattle
installed to reduce vibration.

Chapter 1: Getting Started 3
SG2 Model Identification
SG2 - 20 H R - A
Input Power:
D = 24V DC Powered
12D = 12V DC Powered
A = 100~240V AC Powered
24A = 24V AC Powered
I/O Count:
8 = 8 points (expansion modules)
10 = 10 I/O points
12 = 12 I/O points
20 = 20 I/O points
Form Factor:
H = Encased / LCD & Keypad
V = Encased /LCD, Keypad & RS-485 Communication
K = Encased /Blind (no LCD & Keypad)
C = Bareboard
E = Expansion
OutputType:
R = Relay
T = Transistor
Controller Type

Quick Start Setup 4
Quick Start Setup
This section is a simple 5-steps guide to connecting, programming and operating your
new SG2 smart relay. This is not intended to be the complete instructions for
programming and installation of your system. Many steps refer to other sections in the
manual for more detailed information.
1. Install SG2 Client Software
Install the SG2 Client Software from CD or from the free internet download at
www.taian-technology.com
2. Connect Power to SG2 smart relay
Connect power to the Smart Relay using the below wiring diagrams for AC or DC supply
for the applicable models. See “Chapter 2: Installation” for complete wiring and installation
instructions
AC ..V
NL
DC ..V
+ -

Quick Start Setup 5
3. Connect Programming Cable
Remove the plastic connector cover from the SG2 using a flathead screwdriver as shown
in the figure below. Insert the plastic connector end of the programming cable into the
SG2 smart relay as shown in the figure below. Connect the opposite end of the cable to
an RS232C serial port on the computer.
4. Establish Communication
a. Open the SG2 Client software and select “New Ladder Document” as shown below.
b. Select “Operation/Link Com Port…” as shown

Quick Start Setup 6
c. Select the correct Com Port number where the programming cable is connected to
the computer then press the “Link” button.
d. The SG2 Client will then begin to detect the connected smart relay to complete its
connection as shown below.
5. Write simple program
a. Write a simple one rung program by clicking on the leftmost cell at line 001 of the
programming grid, then click on the “M” contact icon on the ladder toolbar, as shown
below. Select M1 and press the OK button. See Chapter 4: Ladder Programming
instructions for complete instruction set definitions.
Note: If the ladder toolbar is not visible at the bottom of the screen, select
View>Ladder Toolbar from the menu to enable.

Quick Start Setup 7
b. Use the “A” key on your keyboard (or the “A” icon from the ladder toolbar) to draw
the horizontal circuit line from the M contact to the right most cell, as shown below.
c. Select the “Q” coil icon from the ladder toolbar and drop it on the right most cells.
Select Q1 from the dialog and press OK as shown below. See Chapter 4: Ladder
Programming instructions for complete instruction set definitions.
™

Quick Start Setup 8
d. Test the simple program.From the Operation menu, select the Write function and
write the program to the connected smart relay as shown below.
e. Select the RUN icon from the toolbar, and select “No” when the pop-up message
asks “Do you want to read program from module?”, as shown below.