Parameter structure Keypad and display Parameter x.00
Parameter description
format
Advanced parameter
descriptions
Serial comms
protocol
Performance
Mentor MP Advanced User Guide 17
Issue Number: 4 www.controltechniques.com
4 Parameter description format
The following sections provide descriptions for the advanced parameter set. Each parameter displays the following information block as shown below.
Typical example parameter
The top row gives the menu.parameter number and the parameter name. The other rows give the following information.
Coding
This guide will show all bit parameters (with the Bit coding), as having a parameter range of "0 to 1", and a default value of either "0" or "1". This
reflects the value seen through serial communications. The bit parameters will be displayed on the SM-Keypad or SM-Keypad Plus (if used) as being
"OFF" or "On" ("OFF"= 0, "On" = 1).
The coding defines the attributes of the parameter as follows:
1.14 Reference selector
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Range 0 to 6
Default 0 (A1.A2)
Second motor
parameter
Pr 21.03
Update rate
4 ms read
Coding Attribute
Bit 1 bit parameter
SP Spare: not used
FI
Filtered: some parameters which can have rapidly changing values are filtered when displayed on
the drive keypad for easy viewing.
DE Destination: indicates that this parameter can be a destination parameter.
Txt Text: the parameter uses text strings instead of numbers.
VM Variable maximum: the maximum of this parameter can vary.
DP Decimal place: indicates the number of decimal places used by this parameter.
ND
No default: when defaults are loaded (except when the drive is manufactured or on EEPROM
failure) this parameter is not modified.
RA
Rating dependent: this parameter is likely to have different values and ranges with drives of
different voltage and current ratings. Parameters with this attribute will not be transferred to the
destination drive by SMARTCARDs when the rating of the destination drive is different from the
source drive and the file is a parameter file.
NC Not copied: not transferred to or from SMARTCARDs during copying.
NV Not visible: not visible on the keypad.
PT Protected: cannot be used as a destination.
US User save: saved in drive EEPROM when the user initiates a parameter save.
RW Read/write: can be written by the user.
BU
Bit default one/unsigned: Bit parameters with this flag set to one have a default of one (all other bit
parameters have a default of zero. Non-bit parameters are unipolar if this flag is one.
PS
Power-down save: parameter automatically saved in drive
EEPROM when the under volts (UV) trip occurs.
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