Delta MM300 Instruction Manual Page 96
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CHAPTER 6: SETPOINTS CONFIGURATION SETPOINTS
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 6–9
Pre-contactor is omitted on forced starts (for example, undervoltage restart immediate or
external start). Otherwise, contactor A forced starts operate in the same fashion as other
contactor A starts, with the transfer to full voltage occurring when the transfer time
expires. Contactor B forced starts are not supervised by this starter transfer timer – any
external contactor B starting circuit must itself respect full voltage starting restrictions.
The following figure illustrates typical starter timing beginning from the stopped state.
Figure 7: Typical starter timing for wye-delta open transition starter
The following additional setpoints are available for the wye-delta open transition starter.
Pre-Contactor Time
Range: 0 to 60 seconds in steps of 1
Default: 0 seconds
This setpoint represents the time after a start command before the motor is started.
Most starters do not use this delay for forced starts such as undervoltage restart
immediate and external start. This setpoint is also used by the inverter starter and the
soft start starter to set the amount of time between powering up an inverter or soft
starter and sending the ramp-up command. An audible or other warning signal can be
activated in this interval by connecting the signal to a contact output set to the pre-
contactor function.
Transfer Time
Range: 0 to 125 seconds in steps of 1
Default: 1 second
If the value specified by this setpoint has expired, the transition from wye (contactor A) to
delta (contactor B) will occur.
6.2.1.6 Inverter starter
The “Inverter” starter type is used with an external inverter that ramps the motor speed up
on start and ramps it down on stop.
When a start A control is received, the contactor A relay picks up and seals-in. This
provides power for the inverter to start up and to drive the motor. The pre-contactor relay
(if any) is also picked up for the set
Pre-Contactor Time. When the pre-contactor timer
times out, the contactor B relay is picked up signalling the inverter to ramp the motor up.
When a stop control is received, the contactor A and B relays drop out immediately,
signalling the inverter to ramp down.
If the contactor B status unexpectedly opens while running, signalling a possible inverter
trouble, the contactor B relay is dropped out and an Inverter Trip Alarm is issued, but no
trip is issued and the contactor A relay remains closed. This is done so that the inverter has
power to retain its event records for subsequent diagnosis of the problem. The contactor A
relay is opened and the alarm is reset when a stop control is received.
Start A
Start B
Start A
Stop
Contactor B relay
Contactor A relay
Pre-contactor
Starting
Running
Motor current
P
T
P = Pre-contactor time setting
T =- Transfer time setting
853720A1.CDR
- 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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