Emerson Mentor MP Advanced User's Manual page 143

Parameter Keypad and
structure display
Only one option module on a Mentor MP may perform Mentor 2 parameter emulation at a time.
Value
0 No option module will operate communications in porting mode.
1 Option module in slot 1 will operate communications in porting mode if capable.
2 Option module in slot 2 will operate communications in porting mode if capable.
3 Option module in slot 3 will operate communications in porting mode if capable.
11.60 & 11.61 Application parameters
Bit SP
Coding
Range ±16,000
Update rate Background
Intended for use by Solutions Modules.
11.62 Full power discharge time
Bit SP
Coding
Range 0 to 25.0s
Default 0.0
Update rate Background read
This parameter defines the maximum on-time that the externally fitted discharge resistor can stand volts without damage.
Drive voltage rating
480V
575V
11.63 Full power discharge period
Bit SP
Coding
Range 0 to 1500.0s
Default 0.0
Update rate Background read
This parameter defines the time period which must elapse between consecutive braking periods of maximum braking power as defined by Pr 11.60.
The setting of this parameter is used in determining the thermal time constant of the external discharge resistor fitted. It is assumed that the
temperature will fall by 99% in this time, and so the time constant is Pr 11.60 / 5. If either Pr 11.60 or Pr 11.61 are set to their default values, the
software assumes that only the internal discharge resistance is being used.
The external discharge resistor temperature is modelled by the drive as shown below and displayed as a percentage in Pr 11.63. The temperature
rises in proportion to the power flowing into the resistor and falls in proportion to the difference between the resistor temperature and ambient. The
same model is used to determine the temperature of the internal discharge resistors.
Mentor MP Advanced User Guide
Issue Number: 1
Parameter description
Parameter x.00
format
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
1
Switching point volts
1100V
1400V
FI DE Txt VM DP ND
1
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Advanced parameter
descriptions
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
Serial comms
Performance
protocol
PS
PS
1
PS
1
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