Cornelius CCM CCU Especificações Página 68

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
Vista de página 67
Electrical System
Page F2
Compressor Check (Continued)
If all starting components are good, check the amperage draw from the common terminal of the
compressor, making sure proper voltage is supplied to the compressor and all wiring is properly
connected. If the compressor does not start and there is excessive amperage draw, (see locked
rotor amps on compressor tag) the compressor has a locked rotor and should be replaced.
Overload (External)
If there is no amperage draw check the compressor overload. The compressor overload can be
checked for continuity after removing it from the compressor and letting it cool to room
temperature. If there is no continuity between the two terminals, replace the overload. If the
overload is suspected of opening prematurely, it should be replaced with an overload, which is
known to be good.
Capacitors
The start capacitor is an electrical storage device used to provide starting torque to the
compressor. If a start capacitor is defective, the compressor will not start properly.
The run capacitor is an electrical storage device used to improve the running characteristics and
efficiency of the compressor.
Before checking a capacitor, it should be discharged by shorting across the terminals. If a run or
start capacitor is cracked, leaking or bulging it should be replaced. If a capacitor is suspected of
being defective, it can easily be checked by replacing it with a capacitor of the correct size, which
is known to be good. If the compressor starts and runs properly, replace the original capacitor. A
capacitor tester can also be used.
Start Relay
The start relay breaks the electrical circuit to the start windings when the compressor motor speed
increases. If the relay is defective, the compressor will not start or it may start but will run for a
very short time.
A compressor relay can be checked by removing the relay and checking the relay contacts for
damage and check for continuity across the closed relay points. Check the relay coil with an
ohmmeter. If no continuity is read, replace the relay.
Vista de página 67
1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 128 129

Comentários a estes Manuais

Sem comentários

Quantum 10K II manuals

Owner’s manuals and user’s guides for Hardware Quantum 10K II.
We providing 1 pdf manuals Quantum 10K II for download free by document types: User Manual


Quantum 10K II User Manual (371 pages)


Brand: Quantum | Category: Hardware | Size: 1.11 MB |

 

Table of contents

Quantum Atlas

1

10K II 9.2/18.4/36.7/73.4 GB

1

Ultra 160/m S

1

Product Manual

1

CONTENTS

3

Chapter 4 SPECIFICATIONS

4

Chapter 5 SCSI DESCRIPTION

4

Appendix A QUICK REFERENCE

7

Contents

10

Figures (continued)

12

Tables (continued)

16

REVISION RECORD

20

Revision Record

21

ABOUT THIS MANUAL

22

1.4 REFERENCES

24

About This Manual

25

GENERAL DESCRIPTION

26

2.4 HARDWARE REQUIREMENTS

27

INSTALLATION

28

3.2 SPACE REQUIREMENTS

30

Shock Feet

31

3.3 UNPACKING INSTRUCTIONS

32

SCSI Connector

33

Installation

34

DRIVES WITH 68-PIN SCSI

34

CONNECTOR

34

Connector)

38

Versions

39

Connector

45

3.6.1 Orientation

47

160/m SCSI Hard Disk Drive

48

3.6.3 Shock Clip

50

3.6.4 Mounting

50

3.6.5 Ventilation

50

3.6.9 Drive Connections

53

3.6.9.1 SCSI Bus Connection

53

3.6.9.2 Power Connection

53

3.6.9.3 Cables

54

SPECIFICATIONS

56

Specifications

57

4.2 FORMATTED CAPACITY

58

4.3 DATA TRANSFER RATES

59

4.4 TIMING SPECIFICATIONS

60

4.5 POWER

61

4.5.1 Power Sequencing

61

4.5.2 Power Reset Limits

61

4.5.3 Power Requirements

62

4.5.3.1 Power Consumption

62

4.5.3.2 DC Voltage Tolerances

62

4.5.3.3 Current Requirements

63

Spin-Up Mode

63

Idle Mode

63

ECMA Seek Mode

63

4.5.3.4 Current Transients

64

Active Mode (ECMA Seeking)

64

4.5.3.6 DC Voltage Monitoring

64

4.6 ACOUSTICS

65

4.7 MECHANICAL

65

4.8 ENVIRONMENTAL CONDITIONS

66

4.9 SHOCK AND VIBRATION

66

4.10 RELIABILITY

67

SCSI DESCRIPTION

68

5.2 Command Descriptor Block

72

5.3 Status/Error Reporting

76

Table 5–4 Status Codes

77

Condition

78

5.6 Linked Commands

82

5.8 SCSI COMMAND DESCRIPTIONS

88

Common Fields

88

Index Format

97

5.11 INQUIRY Command (12h)

100

SCSI Description

101

INQUIRY command if EVPD = 0

102

5.13 LOG SENSE Command (4Dh)

120

5.13.2 LOG SENSE Log Pages

123

5.14.2 Mode Page Types

128

5.14.3 Mode Parameter List

128

5.14.3.6 Caching Page (08h)

140

(continued)

155

5.16.1 Read-Only Mode Pages

171

Descriptions (continued)

185

Persistent

189

Reservation

189

Attempted

189

5.20 READ (6) Command (08h)

202

5.21 READ (10) Command (28h)

204

7 6 5 4 3 2 1 0

209

4 - 7 Block Length in Bytes

209

5.26 READ LONG Command (3Eh)

218

Descriptions

225

5.34.2 Clearing Sense Data

239

5.34.3 Status Reporting

239

SKSV = 1

256

5.38 SEEK (6) Command (0Bh)

266

5.39 SEEK (10) Command (2Bh)

268

5.45 VERIFY Command (2Fh)

280

5.46 WRITE (6) Command (0Ah)

282

FEATURE DESCRIPTIONS

302

6.2 PREFETCH

303

6.3 WRITE-BACK CACHING

303

6.4 ZERO LATENCY READ/WRITE

304

6.5 DISCONNECT-RECONNECT

304

6.7 AVERAGE ACCESS TIME

304

6.8 EMBEDDED SERVO SYSTEM

305

6.9.1 Media Error Protection

305

6.9.5 Data Verification

306

6.10 TAGGED COMMAND QUEUING

306

6.11 COMMAND REORDERING

307

6.12 BANDED RECORDING

307

6.13 SPECIAL FUNCTIONS

307

6.14 POWER MANAGEMENT

307

require operator

307

6.15 DIAGNOSTICS

308

6.15.3 Host Diagnostics

309

6.15.4 Log Sense

309

6.16 ERROR RECOVERY

309

6.16.1 Seek Error Recovery

309

6.16.2 Data Read Errors

309

INTERFACE

310

6.17.1DIFFSENS

311

6.17.5 DOMAIN VALIDATION

313

System Considerations

314

Feature Descriptions

315

Quick Reference

316

Appendix A. Quick Reference

317

SCSI REFERENCE INFORMATION

322

B.2 SCSI-3 Bus Timing

325

B.3 Signal States

330

B.4 SCSI Signals

332

B.5 SCSI Bus Phases

333

B.5.2 ARBITRATION Phase

334

B.5.3 SELECTION Phase

335

B.5.4 RESELECTION Phase

336

B.5.5.3 Wide Data Transfer

342

B.6 SCSI Bus Conditions

344

B.6.2 Reset Condition

345

B.7 SCSI MESSAGE FORMAT

346

B.8 SUPPORTED SCSI MESSAGES

349

Bit 7 6 5 4 3 2 1 0

354

1 Queue Tag

354

Appendix C

364





More products and manuals for Hardware Quantum

Models Document Type
Atlas II User Manual   Quantum Atlas II User Manual, 8 pages
QTM300CA User Manual   Quantum QTM300CA User Manual, 12 pages