Parker LVD1 - Page 31

Parker Hannifin S.p.A. - Divisione S.B.C. LVD User’s Manual
31
Pr12 Deceleration ramp for stroke end and stop functions. Unit=s/krpm,
range=0.002...65.535, resolution=0.001 s, default=0.002 s. Deceleration requested of
the motor by the stroke limit and stop functions is internally limited so that a speed
change of 1000 rpm takes Pr12 seconds.
Pr13 Overspeed threshold. Unit=rpm, range=0..+13000, default=3500. If the absolute
motor speed value exceeds the value entered in Pr13, b41.0 must be =1 otherwise it
will be = 0.
Pr14 High speed threshold. Unit=rpm, range= ±13000, default=20. When b40.7=0 if the
speed difference between motor and reference is less than Pr14 and greater than Pr15,
b41.1 will be =1, otherwise it will be =0. In the case of b40.7=1, if motor speed is
less than Pr14 and greater than Pr15, b41.1 will be =1, otherwise it will be =0.
Pr15 Low speed threshold. Unit=rpm, range= ±13000, default=-20. When b40.7=0 if the
speed difference between motor and reference is less than Pr14 and greater than Pr15,
b41.1 will be =1, otherwise it will be =0. In the case of b40.7=1, if motor speed is
less than Pr14 and greater than Pr15, b41.1 will be =1, otherwise it will be =0.
Pr16 Integral gain of speed control loop. Range =0...32767, default=120.
Pr17 Speed control loop damping. Range =0...32767, default=2000. If Pr16 is set to zero
Pr17 sets the value for proportional gain of the speed control loop.
Pr18 Bandwidth limiter. Unit=512uS, range=0..1000, default=1. Use Pr 18 to set the time
constant of a first order filter located on the digital torque demand signal. The filter
cut-off frequency will be: 310/Pr18 Hertz.
Pr19 Peak current. Unit=%, range=0..100.0%, resolution=0.1%, default=100.0%.
Maximum current that the drive can deliver to the motor expressed as a percentage of
drive peak current. It is good practice to maintain this value to within 3 times the
rated motor current..
Pr20 DC bus voltage. Unit=volt, read-only parameter. Shows the value of DC-bus
voltage.
Pr21 Torque limiter. Unit=%, read only parameter. Can be used by operating modes to
restrict motor torque.
Pr22 Auxiliary analog reference. Unit=%. The displayed value will be
Pr22=Vinx100/9.76 . Resolution is 0.2%.
Pr23 Alarm code. This code shows the currently active alarm; zero means that no alarms
are active. Consult the table of alarm codes for more details.
Pr24 Last alarm. This parameter stores the last alarm. Pr 24 is reset when the alarm reset
command is entered (b99.10).
Alarm code Alarm Alarm code Alarm
0 no alarm 6 drive overtemperature
1 overvoltage 7 external alarm
2 undervoltage 8 auxiliary alarm
3 overcurrent 9 digital outputs overcurrent
4 resolver alarm 10 PLC checksum
11 parameters checksum
Pr25 Software release code. Read-only parameter describing the version of the software
installed.
Pr26 Serial line baud rate code. Default=8. This is the code for programming
transmission speed. For more information consult the section on the serial interface.
Pr27 Serial line address code. Default=0, possible settings=0..31. For more information
consult the relative section of the manual.