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Protection Device
IQ-1000 II
Cutler-Hammer IQ-1000 II User Manual
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Cutler-Hammer
10-1000
II
MOTOR
PROTECTION
SYSTEM
USER'S
MANUAL
Effective
February
1999
Supercedes
TD
17297G
dated
November
1993
TD
17297D
Courtesy of NationalSwitchgear.com
2
Table of Contents
Default Chapter
3
Iq-1000 II Upgrade
3
Table of Contents
6
Introduction
11
1 General
11
Contents/Use of Manual
11
Product Overview
11
Options
12
External Hardware
12
Protection Features
12
Level of Repair
12
Factory Correspondence
12
Hardware Description
15
2 0 General
15
Operator Panel
15
2.1.2 Rear Access Area
16
Options
17
RTD Module Option
17
Communications Option
17
IQ DC Power Supply Option
17
Specifications
17
Functional Theory
21
3 General
21
Sensing Inputs
21
Protective Functions
21
Load-Associated Protection
22
Rotor Temperature Protection
22
Metering Functions
24
Operator Panel
25
4 Introduction
25
General Description
25
Component Descriptions
26
Display Window
26
Keyswitch
26
Program Mode
26
Protection Mode
26
Set Points/Step Pushbutton
27
Step Up/Raise, Step Down/Lower
27
Push-Buttons
27
Help Pushbutton
27
Reset Pushbutton
27
4.2.7 Protection, Program, Alarm and Trip Leds
27
Entering Setpoint Values
27
Reviewing IQ-1000 II Setpoints
28
Monitoring Metered Values
28
Installation
31
5 General
31
Mounting
31
IQ-1000 Ll
31
RTD Option
32
Communications Option
36
Wiring - General
36
Wire Routing and Wire Types
38
Wiring Connections
38
Wiring Guidelines
38
Grounding
40
Initial AC Power Checks
43
Initial AC Power on
43
Power off Checks
43
STARTUP General
43
APPLICATION CONSIDERATIONS General
47
Motor Protection
47
Overload Protection Without Rtds
47
Overload Protection with Rtds
47
Protection Curve
49
Instantaneous Overcurrent Function
49
Locked-Rotor Function
49
Ultimate Trip
49
Underload Functions
49
Jam Functions
49
Temperature Effects
51
Typical Motor Protection Curves
52
Motor Current
52
Ground Fault Protection
52
Negative Sequence Currents
52
Positive Sequence Currents
52
Motor Cycle Monitoring
52
Start Cycle
55
Run Cycle
56
Stop Cycle
56
AC Line Interruptions
56
Control Signal Wiring
56
Discrete Inputs
58
Output Contacts
58
Wiring Considerations
58
Wire Routing and Wire Types
58
RTD Wiring
58
Grounding
59
Environmental Considerations
60
PROGRAMMING the IQ-1000 II and SET POINT DESCRIPTION General
63
Start and Run Delays
63
Start Delays
63
Run Delays
63
Setpoint Item 1, Operating Modes
64
4
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Cutler-Hammer IQ-1000 II Specifications
General
Brand
Cutler-Hammer
Model
IQ-1000 II
Category
Protection Device
Language
English
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General
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