Cotek TR-40 User Manual

TR-40 User’s Manual

40A Transfer Switch

Table of Content

1. IMPORTANT SAFETY INFORMATION 1

1-1.General Safety Precautions 1

1-2.Other Safety Notes 1

2. INTRODUCTION 2

2-1. System 2

2-2. Application Block Diagram 2

2-3. Panel introduction and terminal description 2

2-4. LED status 4

2-5. Electrical Specification 4

2-6. Mechanical Drawings 5

2-7. Standard Accessory 6

3. INSTALLATION AND OPERATION 6

4. TROUBLESHOOTING 10

5. WARRANTY 10

1

1. Important Safety Information

1-1. General Safety Precautions

Warning! Before using the Inverter, read the safety

instructions.

z Do not expose the transfer switch to rain, snow, spray or dust. To

reduce the risk of fire hazard, do not cover or obstruct the
ventilation openings and do not install the inverter in a
zero-clearance compartment.

z To avoid the risk of fire and electric shock, make sure that the

existing wiring is in good electrical condition, and the wire size is
not undersized.

z This equipment contains components which can produce arcs or

sparks. To prevent fire or explosion do not install in compartment
containing batteries or flammable materials or in location which
require ignition protected equipment. This includes any space
containing gasoline-powered machinery, fuel tanks, or joints,
fittings, or other connection between components of the fuel
system.

z The following precautions should be taken when working on the

transfer switch:
Step 1 Remove watches, rings, or other metal objects
Step 2 Use tools with insulated handles
Step 3 Wear rubber gloves and boots

1-2. Other Safety Notes

z Upon receipt, examine the carton box for damage. If you have

found any damage on the carton box please notify the company
you purchased this unit from.

z Do not operate near water or in excessive humidity.

z Install the transfer switch in a well-ventilated area. Do not block

the front air vents, or the rear air exhausts of the unit.

z Do not operate the transfer switch close to combustible gas or

open fire.

2

2. Introduction

2-1. System

The unit is a highly reliable transfer switch, designed with advanced
power electronic and microprocessor technology offering the
following features:

Low power consumption <1.3W
Universal AC input, full range
Cooling by free air convection
Switching current up to 40 amps
High transfer speed
Applicable models: SP-700/1000/1500/2000/3000/4000

2-2. Application Block Diagram

2-3. Panel introduction and terminal description

2-3-1. Panel introduction

Fig. 2 Panel introduction

Fig. 1 Application block diagram

AC source

Load

AC
DC

TR-40

Transfer Switch

SP series

Inverter

Battery

INV.

INPUTACOUTPUT

GRID

INPUT

Status LED

Grid Input

AC OutputInverter

Input

3

2-3-2.

Terminal description

Fig. 3 Terminal description

Description Function

A TRC Port (RJ-45) SP series inverter communication port

B N terminal N to ground

C Inverter Input terminal Inverter AC power input terminal

D AC Input terminal Grid AC power input terminal

E Output terminal Output power terminal

F Circuit Breaker (40A) Grid power over load protection

Table 1. Panel introduction and terminal description

2-3-3. TRC port definition

Pin Num. Definition

1 Reserved --

2 PH-L Zero-crossing signal

3 PH-N Zero-crossing signal

4 Bypass transfer switch driver signal

5 12V Internal power for TR-40 controller

6 5V Internal power for TR-40 controller

7 GND The same polarity and the negative battery

8 Reserved --

Table 2. TRC port definition

A

B

C E

D

F

4

2-4. LED status

2-4-1. INV. INPUT

LED Signal Description

Green Inverter input normal

Red Inverter not synchronous

Off No Inverter input

Table 3. INV. input LED description

2-4-2. AC OUTPUT

LED Signal Description

Green INV provides power to Load

Orange Grid provides power to Load

Off No AC output

Table 4. AC output LED description

2-4-3. GRID INPUT

LED Signal Description

Green Grid input normal

Red Grid not synchronous

Off No Grid input

Table 5. GRID input LED description

2-5. Electrical Specification

Model TR-40A TR-40B

Contact

Rating

Max. switching voltage 277VAC

Max. switching current 40A

Max. switching power 11000VA

Switching

time

INV to GRID 10mS

GRID to INV 60mS

Control

Voltage range 100~240VAC

AC current (Typ.) 21mA / 100VAC, 16mA / 240VAC

Frequency range 47~63Hz

Power consumption <1.4W (at no load)

Protection

Wiring errors LED inform

Grid overload Circuit breaker (40A)

5

Model TR-40A TR-40B

Environment

02-.pmet gnikroW

~40

Working humidity 20~85% RH non-condensing

Storage temp., humidity -40 ~85 , 20~85%

Vibration

10~500Hz, 2G 10min / 1 cycle, period for

60 min each along X,Y,Z axes

Safety &

EMC

Safety standards CE, EN60947-1; EN60947-6-1

22055NEIME

Safety &

EMC

Power harmonic & voltage

fluctuation and flicker

EN61000-3-2, EN61000-3-3

Others

EMS immunity EN55024, IEC61000-4-2, 3,4,5,6,8,11

Dimension (WxHxD) 220x71x194 mm / 8.66x2.80x7.64 inch

Table 6.TR-40 Electrical Specification

2-6. Mechanical Drawings

Unit: mm [inch]

Fig. 4 Mechanical drawings

INV.

INPUTACOUTPUT

GRID

INPUT

220 [8.66]

194 [7.64]

71 [2.80]

9.3

[0.37]

135.0 [5.31]

188.0 [7.40]

6

2-7. Standard Accessory

TRC Cable, 1800mm x 1pcs
Copper for N Terminal x 1pcs

3. Installation and Operation

Note 1: Please make sure the load power consumption is not over

inverter output power.

Note 2: Please make sure the inverter output settings (output

voltage and frequency) should be the same as the Gird
power.

Step 1 Pease follow the installation drawing to connect the TR-40,

inverter, load and Grid power.

remove the cover

A. Use screw driver to lose
the screw on t

he cover and

Fig. 6

Fig. 5 TR-40 wiring diagram

SP Series

TRC AC

Output

INVERTER INPUT OUTPUT AC INPUT

Load

Breaker

7

B. Use screw driver to
lose the layering

D. Fix the layering

E. Fix the cover and connect the
cable to inverter, load and
Grid power.
(Please refer to Fig.1
wiring diagram)

Fig. 8

Fig.9

Fig. 10

8

Step 3 Turn on the inverter power to make sure the inverter is

working normal and turn off the inverter.

Step 4 Switch on the breaker to provide power to TR-40.

Step 5 Turn on the inverter. When power on the inverter, it will

take 15 seconds for frequency and phase locking. After
frequency and phase is locked, the internal relay will
switch to “Grid input”. The LED of “AC OUTPUT” will turn
orange. Grid AC provides the energy to the load. The
system works normal.

Note! In case of AC OUTPUT do not switch, please follow
the troubleshooting guide.

Warning!

1. Before the wiring connection, it’s important to make sure
there is no power feed in and inverter must be switched off.

2. Wire diameter: user need to use / select the suitable cable
gauge. Please contact the COTEK distributor for installation.

3. TR-40 max. output current is 40A and we considered the
cabling, we need to use 40Ax1.25= 50A to select the cable.
Consider the two important factors for the cable size
determination
z NEC Table 310.15(B)(2)(A) Ambient Temperature

Correction Factors Based on 30°C.

z NEC 310.15(B)(16) Allowable Ampacities of Insulated

Conductors Rated Up to and Including 2000 Volts, 60
Through 90 , Not More Than Three Current-Carrying
Conductors in Raceway, Cable, or Earth(Directly Buried),
Based on Ambient Temperature of 30

.

We suggest user select the AWG#6 for TR-40.
In case of the application do not need such high current, user
can determine the cable based on the following table.

9

Ambient

Temperature

( )

Temperature Rating of

Conductor

Ambient

Temperature

( )

60 75 90

10 or less 1.29 1.20 1.15 50 or less

11-15 1.22 1.15 1.12 51-59

16-20 1.15 1.11 1.08 60-68

21-25 1.08 1.05 1.04 69-77

26-30 1.00 1.00 1.00 78-86

31-35 0.91 0.94 0.96 87-95

36-40 0.82 0.88 0.91 96-104

Table 7. NEC Table 310.15(B)(2)(A) Ambient Temperature Correction Factors Based on
30°C.

A.W.G

Copper Temperature

60 75 90

Current (A)

14 15 20 25

12 20 25 30

10 30 35 40

840 50 55

655 65 75

Table 8. NEC 310.15(B)(16) Allowable Ampacities of Insulated Conductors Rated Up to
and Including 2000 Volts, 60

Through 90 , Not More Than Three Current-Carrying
Conductors in Raceway, Cable, or Earth(Directly Buried), Based on Ambient Temperature
of 30

.

10

4. Troubleshooting

LED Status Signal Description Suggestion actions
Grid Input LED Red
twinkling

Grid not synchronous Please wait and check the Grid input

Grid Input LED Off No Grid input

Please power off the system and make
sure the Grid input cable are connect
correctly

INV input LED Red Inverter not synchronous

Please power off the system and make
sure the Inverter Input cable are connect
correctly

INV input LED Off No Inverter input

Check the inverter status – On / Off
Check the cable between inverter and
TR-40

AC output LED off No AC output

Check the Grid input cable and grid
status
Check the inverter input cable and
inverter status (on / off / alarm)

Table 9.Troubleshootingguide

5. Warranty

We guarantee this product against defects in materials and
workmanship for a period of 24 months from the date of purchase. In
case you need to repair or replace any defective power inverters, please
contact COTEK local distributor.
This warranty will be considered void if the unit has been misused,
altered, or accidentally damaged. COTEK is not liable for anything that
occurs as a result of the user’s fault.

No.33, Sec. 2, Renhe Rd., Daxi Dist., Taoyuan City 33548, Taiwan

Phone

[phone] FAX [phone]

http

// www.cotek.com.tw

2015.09._A0