Delta MM300 Instruction Manual Page 131
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6–44 MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
PROTECTION ELEMENTS CHAPTER 6: SETPOINTS
All RTDs programmed with an alarm or a trip are monitored for sensor failure. When the
measured temperature is greater than 250°C, the RTD is declared failed and a common
RTD open circuit alarm is issued. When the measured temperature is less than -50°C, a
common RTD short circuit/low temperature alarm is issued.
The following setpoints are available for RTD protection.
[Path: Home > Setpoints > Protection > Sensor]
RTD Open Circuit Alarm
Range: Enabled, Disabled
Default: Disabled
Enable to generate an alarm if RTD is open circuit.
RTD Open/Short Circuit Alarm
Range: Enabled, Disabled
Default: Disabled
Enable to generate an alarm if RTD is shorted/opened.
RTD #1 Application to RTD #3 Application
Range: None, Stator, Bearing, Ambient, Other
Default: None
These setpoints select the application type for RTDs #1 through 6, respectively.
RTD #1 Alarm Temp to RTD #6 Alarm Temp
Range: 1 to 250°C in steps of 1 or OFF
Default: OFF
These setpoints specify the alarm temperature for RTDs #1 through 6, respectively.
RTD #1 Trip Temp to RTD #6 Trip Temp
Range: 1 to 250°C in steps of 1 or OFF
Default: OFF
These setpoints specify the trip temperature for RTDs #1 through 6, respectively.
RTD #1 Trip Voting to RTD #6 Trip Voting
Range: RTD #1, RTD #2, RTD #3, RTD #4, RTD #5, RTD #6, OFF
Default: OFF
These setpoints select the redundant RTD that must also exceed the trip temperature for
RTDs #1 through 6, respectively, for a trip to occur.
6.3.4.2 Thermistor protection
Either a Positive Temperature Coefficient (PTC) or Negative Temperature Coefficient (NTC)
thermistor may be directly connected to the MM300. By specifying the hot and cold
thermistor resistance, the MM300 automatically determines the thermistor type as NTC or
PTC. Use thermistors with hot and cold resistance values in the range 100 to 30000 OHMS.
If no thermistor is connected, the thermistor alarm and trip detection must be set to
DISABLE.
220 428 183.17
230 446 186.82
240 464 190.45
250 482 194.08
Temperature Resistance (in ohms)
°C °F 100 Pt
- 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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