Table of Contents
Advertisement
Advertisement
Table of Contents
Related Manuals for Eaton Cutler-Hammer TRU-START
Summary of Contents for Eaton Cutler-Hammer TRU-START
- Page 1 OPERATION AND INSTALLATION MANUAL Solid State DC Injection Brake Cutler-Hammer...
- Page 2 FOR YOUR SAFETY Only qualified personnel should install this equipment, after first reading and understanding all the information in this manual. All instructions should be strictly adhered to. The user should consult Cutler-Hammer or a representitive for clarification of the contents of this manual should any doubt or questions arise.
-
Page 3: Table Of Contents
TABLE OF CONTENTS 1 DESCRIPTION .......... - Page 4 TABLE OF CONTENTS 4 INSTALLATION AND START UP ......PAGE 13 4.1 INSPECTION ............
-
Page 5: Description
These units can be supplied as an option to the TRU-START solid state starter, or as stand alone units for new or retrofit installations. Cutler-Hammer TRU-START DC Injection braking modules offer a unique combination of features that make it very reliable, easy to use, and energy efficient. These features include:... -
Page 6: Application Notes
1.2 APPLICATION NOTES The motor torque/speed characteristic of an induction motor under DC supply is similar to the normal curve published for constant frequency, at 50 or 60 Hz, but this time having "synchronous speed" zero RPM. This is illustrated below. For smooth braking the DC current is typically adjusted to 300% of the motor nameplate current. -
Page 7: Controls
1.3 CONTROLS The OP-STOP unit contains two major parts, the power circuit and the control card. The power circuit is a 4 SCR single phase full wave controlled rectifier. This configuration optimizes the DC current injected to the motor per input current. The control is contained in a single PC board, CA398-3. - Page 8 PAGE 4...
-
Page 9: Specifications
2 SPECIFICATIONS 2.1 POWER RATING 200-600VAC, 50/60 Hz POWER CONTROL 115 VAC@50 Hz or 120 VAC@60 Hz, 10VA Intermitent duty, See Section 2.2 RATING 300% for 30 seconds, once every 30 minutes All models have 1600V PIV SCR's DC injection relay contacts rated at 1A, 120VAC CONTACTS PROTECTION Short circuit by HRC fuses or circuit breaker... -
Page 10: Service Conditions
2.3 SERVICE CONDITIONS ELEVATION For altitudes in excess of 2000 meters / 6600 feet above sea level, all assemblies must be derated 1% for every 100 meters / 330 feet above Do not install in areas where ambient temperature falls below AMBIENT TEMPERATURE 0°C / 32°F or exceeds 40°C / 104°F... -
Page 11: Scr Installation Specifications
2.5 SCR INSTALLATION SPECIFICATIONS 2.5.1 SCR TIGHTENING PROCEDURE 2.5.1.1 Clean both heat sink and SCR surfaces. 2.5.1.2 Apply a thin layer of joint compound (Noalox) to both SCR surfaces. 2.5.1.3 Observe correct SCR polarity. 2.5.1.4 Install SCR so that roll pins engage dimples on both sides of the SCR. 2.5.1.5 Tighten clamp bolts evenly until finger-tight. - Page 12 PAGE 8...
-
Page 13: Card Functions
3 CARD FUNCTIONS 3.1 CARD LAYOUT CA398-3 - DC INJECTION CARD 3.2 LED AND NEON INDICATIONS NAME COLOUR DESCRIPTION LD 1 DC INJCT On when unit is braking LD 2 GREEN Must be On when 115 VAC is applied LD 3 Instantaneous Over-Current fault indication when illuminated PHASE OK... -
Page 14: Adjustments
3.3 ADJUSTMENTS 3.3.1 POTENTIOMETERS NAME RANGE DEFAULT DESCRIPTION SETTING BRAKING 1-60 sec Adjust the braking time TIME CW rotation increases the time TORQUE 100-300% Adjust DC current CW increases the braking torque (current) 3.3.2 LINK SELECTION LINK NAME POSITION DESCRIPTION VOLTAGE Braking action starts when motor starter has opened LEVEL... -
Page 15: Terminals
3.4 TERMINALS 3.4.1 CUSTOMER TERMINALS TERMINAL DESCRIPTION L1, N 115 VAC control voltage input, L1 being hot and N, neutral L1 input is protected with internal fuse, 1A 250VAC 1, 2 115 VAC supply for external interlock contacts A normally open contact from the motor starter auxiliary must be connected between this teminal and terminals 1 or 2 to sense when the starter is de-energized to enable braking action When using a TRU-START starter in conjuction with the DC... -
Page 16: Faults
3.5 FAULTS When a fault exists the DC Injection DCI relay is de-energized, preventing a properly interlocked starter from being activated. When an TRU-START DC Injection is used in conjunction with a C-H starter, this interlock is also carried out through signals passed by energized the ribbon cable at OPT. -
Page 17: Installation And Start Up
4 INSTALLATION AND START UP 4.1 INSPECTION The DC Injection unit has been packaged to protect it from damage caused by normal handling during shipping, however mishandling may cause damage to the DC Injection unit. Unpack the unit as soon as it is received and check for any shipping or storage damages. If damage is found notify the carrier. -
Page 18: Wiring Guidelines
4.4 WIRING GUIDELINES Follow all local electrical codes for installation requirements and wire sizing. Size the power wiring as per local code and on long wire runs it is recommended to use a larger wire size. Power factor correcting capacitors MUST NOT be connected to the DC Injection unit output. If desired, they must be connected on the line side of the unit. -
Page 19: With Power On
MODEL MOTOR BURDEN EFFECTIVE CT AMPS RESISTOR (¼ W) RATIO 68 Ω TRU-015-P c/w DCI 750 : 1 47 Ω 39 Ω TRU-020-DCIor 750 : 1 TRU-030-P c/w DCI 27 Ω 39 Ω TRU-040-DCI or 1500 : 1 TRU-050-P c/w DCI 33 Ω... - Page 20 PAGE 16...
-
Page 21: Typical Connections
5 TYPICAL CONNECTIONS 5.1 STAND ALONE DC INJECTION UNIT WITH ZERO SPEED DISABLE PAGE 17... -
Page 22: Tru-Start Starter With Dc Injection
5.2 TRU-START STARTER WITH DC INJECTION PAGE 18... -
Page 23: Reversing Tru-Start Starter With Dc Injection, 125 Amps
5.3 REVERSING TRU-START STARTER WITH DC INJECTION, 125 AMPS AND BELOW PAGE 19... -
Page 24: Reversing Tru-Start Starter With Dc Injection, 200 Amps
5.4 REVERSING TRU-START STARTER WITH DC INJECTION, 200 AMPS AND ABOVE PAGE 20... -
Page 25: Spare Parts
6 SPARE PARTS MODEL SNUBBER CONTROL CARD RATIO PART NO. PART NO. CARD DESCRIPTION 1500:1 T261123 N10SP03 CA524 CA398-3 TRU-020-DCI 1500:1 T261123 N10SP06 CA524 CA398-3 TRU-040-DCI 2500:1 T262230 N10SP16 CA524 CA398-3 TRU-080-DCI 2500:1 T262230 N20SP06 CA524 CA398-3 TRU-125-DCI 2500:1 T262230 N728452 CA232 CA398-3... - Page 26 PAGE 22...
- Page 27 1-800-268-3578, for engineering services call 1-800-498-2678, or visit www.cutler-hammer.ca . Eaton Corporation is a global $7.3 billion diversified industrial manufacturer that is a leader in fluid power systems; electrical power quality, distribution and control; automotive engine air management and fuel economy; and intelligent truck systems for fuel economyand safety.
Need help?
Do you have a question about the Cutler-Hammer TRU-START and is the answer not in the manual?
Questions and answers