Emerson E300 Series Design Manual page 332

Safety Product Mechanical
information information installation
I23 Start Lock Position Change Maximum
Mode RFC A, RFC-S
Minimum 0.00
Default 0.00
Type 8 Bit User Save
Display Format Standard
Coding RW, BU
This parameter is only used when Start Lock Enable (I22) = On (1).
When set to 0, this parameter disables movement compensation between when the mechanical brake is applied at the end of travel to when the
torque is removed from the elevator motor.
When set > 1, this parameter enables compensation for the movement of the elevator motor shaft from when the mechanical brake is applied at the
end of travel to when the torque is removed from the elevator motor. This gives a smooth transition of load from the mechanical brake to the motor on
the next travel. The second function is to set a maximum limit for the position change that can be used in the compensation, which is expressed as a
percentage of the diameter from 0.01 % to 2.55 %. This is to prevent a mechanical fault from introducing an excessive position change into the
position controller. In the event that the position change for a travel was greater than Start Lock Position Change Maximum % (I23), the movement
compensation is not used for the next travel but the position controller will still operate.
I24
Mode RFC A, RFC-S
Minimum 50
Default 100
Type 16 Bit User Save
Display Format Standard
Coding RW
A notch filter can be inserted be applied to the Final Current Reference (J20) to remove the effect of a mechanical resonance in the system. Notch
Filter Centre Frequency (I24) defines the centre frequency (f
frequency difference between the 3dB points of the notch filter in Hertz. The centre frequency should be set slightly below the resonant frequency of
the mechanical load. The Q of the filter is given by Q = f
disabled. It should be noted that although it is possible to set a bandwidth that is higher than half the centre frequency, the bandwidth of the filter is
limited to half the centre frequency.
I25
Mode RFC A, RFC-S
Minimum 0
Default 0
Type 16 Bit User Save
Display Format Standard
Coding RW
See Notch Filter Centre Frequency (I24).
332
Electrical Getting
User Menu A Commissioning
installation started
Notch Filter Centre Frequency
) in Hertz and Notch Filter Bandwidth (I25) defines the bandwidth (
0
/ f
0 BW
Notch Filter Bandwidth
Advanced
Parameters
Maximum
Units
Update Rate
Decimal Places
Maximum
Units
Update Rate
Decimal Places
. If Notch Filter Bandwidth (I25) is at its default value of zero, then the notch filter is
Maximum
Units
Update Rate
Decimal Places
Diagnostics Optimization CT MODBUS RTU Technical Data
2.55
%
Background
2
1000
Hz
Background read
0
500
Hz
Backround Read
0
E300 Design Guide
) which is the
f
BW
Issue Number: 1