S.B.C. Elettronica S.p.A. - Engineering Division
HPDxxN – High Power User’s Manual
28
Pr12
Deceleration
ramp for limit-switch and stop functions
.
Unit=s/krpm,
range=0.002..65.535, resolution=0.001 s, default=0.002 s. Deceleration required of the
motor
by the limit-switch and stop functions is internally limited so deceleration of 1000 rpm takes
Pr12 seconds
.
Pr13
Overspeed threshold
.
Unit=rpm, range=0..+13000, default=3500. If the absolute value for
motor speed 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
higher 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
higher 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=512
µ
s, range=0..1000, default=1. Use Pr18 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
,
read-only parameter. Unit=%. Can be used by operating modes to restrict
motor torque.
Pr22
Auxiliary analogue reference
.
Unit=%. The displayed value will be Pr22=Vin
⋅
100/9.76.
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. Pr24 is reset when the alarm reset
command is entered (b99.10).
Alarm code
Alarm
0
no alarm
1
overvoltage
2
undervoltage
3
overcurrent
4
resolver alarm
5
motor overheating
6
drive overheating
7
external alarm
8
auxiliary alarm
9
digital output overcurrent alarm
10
PLC checksum
11
parameter checksum