Danfoss VLT HVAC Drive FC100, Руководство по обслуживанию

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5.2.2 Open (Blown) Fuses 78
5.2.3 Current Sensor Faults 78
5.3 Electromagnetic Interference 79
5.3.1 Effect of EMI 79
5.3.2 Sources of EMI 80
5.3.3 EMI Propagation 81
5.3.4 Preventive Measures 83
5.3.5 Proper EMC Installation 84
6 Test Procedures
85
6.1 Introduction 85
6.1.1 Tools Required for Testing 85
6.1.2 Signal Test Board 85
6.2 Static Test Procedures
85
6.2.1 Rectifier Module Static Test 87
6.2.2 Inverter Module Static Tests 90
6.2.2.1 Test Point Access 90
6.2.2.2 Inverter test part I 91
6.2.2.3 Inverter test part II 91
6.2.3 Brake IGBT Test 92
6.2.4 Fan Continuity Test 92
6.3 Dynamic Test Procedures
94
6.3.1 Split Bus Mode 94
6.3.2 Warnings 95
6.3.3 No Display Text 95
6.3.4 Input Voltage Test 95
6.3.5 Basic Control Card Voltage Test 95
6.3.6 DC Undervoltage Test 96
6.3.7 Input Imbalance of Supply Voltage Test 96
6.3.8 Input Waveform Test 96
6.3.9 Gate Signal Test 97
6.3.10 IGBT Switching Test 97
6.3.11 Current Sensor Test 98
6.3.12 Testing Current Feedback with the Signal Test Board 98
6.3.13 Input Terminal Signal Test 98
6.4 Module-level Static Test Procedures
99
6.4.1 Inverter Module 99
6.4.2 Rectifier Module 100
6.5 After Repair Drive Test
101
6.5.1 Procedure 101
Contents High Power Service Manual for Modular F Frame Drives
MG90K202 - VLT
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