Delta MM300 Instruction Manual Page 124
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CHAPTER 6: SETPOINTS PROTECTION ELEMENTS
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 6–37
Underpower Trip Level
Range: 1 to 100% MNR in steps of 1 or OFF
Default: OFF
This setpoint specifies the underpower trip pickup level. A value of “OFF” disables the
underpower trip function.
Underpower Trip Delay
Range: 1 to 60 seconds in steps of 1
Default: 1 second
The setpoint specifies the amount of time the motor power must meet or exceed the trip
pickup level to generate a trip.
Underpower Alarm Level
Range: 1 to 100% MNR in steps of 1 or OFF
Default: OFF
This setpoint specifies the underpower alarm pickup level. A value of “OFF” disables the
underpower alarm function.
Underpower Alarm Delay
Range: 1 to 60 seconds in steps of 1
Default: 1 second
The setpoint specifies the amount of time the motor current must exceed the alarm
pickup level to generate an alarm.
For example, underpower may be used to detect loss-of-load conditions. A loss-of-load
condition will not always cause a significant loss of current. Power is a more accurate
representation of loading and may be used for more sensitive detection of load loss or
pump cavitation. This may be especially useful for detecting process related problems.
6.3.2.4 Acceleration protection
The thermal model protects the motor under both starting and overload conditions. The
acceleration timer trip may be used to complement this protection. For example, if the
motor always starts in 2 seconds, but the safe stall time is 8 seconds, there is no point
letting the motor remain in a stall condition for the 7 or 8 seconds it would take for the
thermal model to operate. Furthermore, the starting torque applied to the driven
equipment for that period of time could cause severe damage.
If enabled, the acceleration protection will trip if the motor stays in the starting state and
does not reach the running state by the set acceleration time.
The acceleration protection setpoints and logic are described below.
Acceleration Alarm Timer(s)
Range: 0.5 to 250.0 seconds in steps of 0.1 or OFF
Default: OFF
This setpoint specifies the maximum acceleration time before alarming. A value of “OFF”
disables the acceleration protection alarm.
Acceleration Trip Timer(s)
Range: 0.5 to 250.0 seconds in steps of 0.1 or OFF
Default: OFF
This setpoint specifies the maximum acceleration time before tripping. A value of “OFF”
disables acceleration protection tripping.
Open Control Circuit Trip
Range: Enable, Disable
Set to Enable if the MM300 should trip when an open control circuit is detected.
- Instruction manual 1
- Motor Management System 1
- Table of Contents 3
- Chapter 1: Introduction 7
- Figure 2: Single line diagram 9
- 1.1.3 MM300 order codes 10
- 1.2 Specifications 12
- 1.2.4 Control specifications 14
- 1.2.5 Inputs specifications 14
- 1.2.6 Outputs specifications 16
- CERTIFICATION 17
- TYPE TESTS 17
- DIMENSIONS 17
- OPERATING ENVIRONMENT 18
- Chapter 2: Installation 20
- 2.1.2 Product identification 21
- 2.1.3 Mounting 21
- CAUTION: 22
- Figure 5: DIN rail mounting 23
- 853727A1.CDR 24
- 853733A1.CDR 25
- 853734A1.CDR 25
- 2.2.1 Power supply module 28
- 2.2.2 CPU module 28
- MM300 IED 31
- 853745A1.CDR 31
- 2.2.3 Protection modules 32
- Core Balance (Zero Sequence) 33
- 2.2.3.2 Two CT configuration 34
- FUSES - 100 ma typical 35
- 2.2.4 Input/output modules 36
- Consumer & Industrial 39
- Multilin 39
- 2.3 Starter types 40
- Low Voltage 41
- 2.3.3 Two-speed starter 42
- 2.3.6 Soft starter type 48
- 3.1.1.1 Graphical display 51
- 3.1.1.2 Keypad 52
- 3.1.1.3 Control keys 54
- 3.1.1.4 LED indicators 54
- Main menu 55
- Level 1 Level 2 Level 3 55
- 3.1.2.1 Home display page 56
- 3.1.2.2 Default display 56
- 3.1.2.3 Actual values pages 56
- 3.1.2.4 Status pages 57
- 3.1.2.5 Setpoints pages 59
- 3.1.2.6 Diagnostics pages 60
- 3.1.2.7 Control page 61
- 3.1.2.8 Popup windows 61
- 3.1.3.2 Numeric setpoints 63
- 3.1.3.5 Security access 65
- 3.2 Basic control panel 66
- Chapter 4: Software operation 68
- 4.1.1 Software requirements 69
- USB port: 71
- 4.2 Power analysis 76
- 4.2.2 Data logger 79
- Chapter 5: Actual values 82
- 5.2 Metering 83
- 5.2.3 Power metering 84
- 5.2.4 Sensor metering 84
- 5.3 Status 85
- 5.3.3 System Page 86
- 5.3.4 Flex Page 86
- Chapter 6: Setpoints 88
- 6.2 Configuration setpoints 90
- Full Voltage Non-reversing 92
- Full Voltage Reversing 92
- Two Speed Starter 92
- Wye-Delta Starter 92
- 853717A1.CDR 93
- 6.2.1.4 Two-speed starter 94
- 853719A1.CDR 95
- 6.2.1.6 Inverter starter 96
- 853721A1.CDR 97
- 6.2.1.7 Soft starter 98
- 6.2.3 Inputs 101
- 6.2.4 Outputs 102
- 6.2.6 System 107
- 6.2.7 Events 109
- 6.2.8 Waveforms 110
- 6.2.9 Datalog 110
- 6.2.10 Counters 111
- 6.3 Protection elements 113
- 6.3.1.1 Unbalance biasing 113
- 6.3.1.2 Hot/cold biasing 114
- 6.3.1.3 RTD biasing 115
- 6.3.1.4 Overload curve 116
- TIME IN SECONDS 117
- 6.3.1.5 Cooling rate 118
- Time (minutes) 119
- RTD Bias – 121
- Maximum T 121
- RTD Bias – Center T 121
- 6.3.2.1 Mechanical jam 122
- 6.3.3 Electrical protection 125
- Ground CT setpoint 126
- 6.3.3.3 Load increase alarm 127
- 6.3.3.4 Phase undervoltage 127
- 6.3.3.6 Phase overvoltage 128
- 6.3.3.7 Phase reversal 129
- 6.3.3.8 Fuse failure 129
- 6.3.4.1 RTD protection 130
- 6.4 Control elements 133
- 6.4.1.1 Auto/manual control 133
- Start Ctrl 135
- External Stop Action 136
- 6.4.2 Starting duty inhibits 137
- 6.4.3 Process interlocks 139
- 853703A1.CDR 140
- IL Function A setpoint 141
- 6.5 System security 144
- MM300 Motor Management System 146
- Chapter 7: Diagnostics 146
- EVENTS CHAPTER 7: DIAGNOSTICS 147
- 7.2 Digital counters 148
- 7.3 Phasors 150
- 7.4 Product information 151
- 7.5 Learned data 152
- 7.6 Waveform 153
- 7.7 Datalog 154
- Chapter 8: FlexLogic™ 156
- Chapter 9: Communications 162
- Appendix 164
- APPENDIX 165
- Section Number CHANGES 165
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