CHAPTER 5: SETPOINTS
CONTROL ELEMENTS
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
5–63
UVR Dropout Level
Range: 60 to 100% of NCV in steps of 1
Default: 65%
When the magnitude of the control voltage drops below the UVR Dropout Level, the
motor contactor(s) are de-energized. The UVR Dropout Level is set as a percentage of the
nominal control voltage. This value programmed must be set lower than the UVR Pickup
Level setpoint.
UVR Pickup Level
Range: 60 to 100% of NCV in steps of 1
Default: 90%
When the magnitude of the control voltage recovers to the UVR Pickup Level, the
undervoltage restart element is triggered. The UVR Pickup Level is set as a percentage of
the nominal control voltage. This value programmed must be set higher than the UVR
Dropout Level setpoint.
UVR Short Dip Time
Range: 100 to 500 ms in steps of 10 ms, or OFF
Default: 200 ms
This setpoint represents the maximum duration of short dips, which result in immediate
restarts. A value of Off disables immediate restarts.
UVR Med Dip Time
Range: 0.1 to 10.0 s in steps of 0.1 seconds
Default: 2.0 s
This setpoint represents the maximum duration of medium dips.
UVR Long Dip Time
Range: 0.5 to 60 min. in steps of 0.5 min., or OFF
Default: OFF
This setpoint represents the maximum duration of long dips. A value of Off disables
restarts after long dips.
UVR Med Dip Delay
Range: 0.2 to 90.0 seconds in steps of 0.2 seconds
Default: 2.0 s
This setpoint represents the UV restart medium delay.
UVR Long Dip Delay
Range: 1.0 to 1200.0 s in steps of 1.0 seconds
Default: 10.0 s
This setpoint represents the UV restart long delay.
NOTE
NOTE:
The UV Restart feature is not supported with the Low-Voltage power supply option.
NOTE
NOTE: NCV - Nominal Control Voltage - is calculated depending on Aux VT connection:
If Aux VT is set for Direct:
NCV = MNV / root3
If Aux VT is set for VabVT, VbcVT, VcaVT, VanVT, VbnVT, VcnVT:
NCV = Aux VT secondary
NOTE
NOTE: NCV - Nominal Control Voltage - is calculated depending on Aux VT connection:
When using medium and long dip, ensure that the delay setting is greater than the
Restart Inhibit time (if used).
NOTE
NOTE: NCV - Nominal Control Voltage - is calculated depending on Aux VT connection:
The UV Autorestart feature requires a minimum of 2.5 s between successive dips, to
ensure correct operation.
Содержание Multilin MM300
Страница 20: ...1 14 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL SPECIFICATIONS CHAPTER 1 INTRODUCTION ...
Страница 104: ...3 44 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL SOFTWARE CHAPTER 3 INTERFACING WITH THE MM300 ...
Страница 184: ...6 8 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL COMMANDS CHAPTER 6 DIAGNOSTICS ...
Страница 192: ...8 2 MM300 MOTOR MANAGEMENT SYSTEM INSTRUCTION MANUAL COMMUNICATIONS INTERFACES CHAPTER 8 COMMUNICATIONS ...
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