
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.