AQS610-EU/SF (V2 H/W)
DOC 584 Issue A
TECHNICAL GUIDE
Page 19
6.4 User Parameters
NOTE: Through the LVD keypad you have full access to all system Parameters, DO NOT adjust any
parameters other than those show below as this may have a serious adverse affect on the operation of
the unit.
Pr01 Homing Speed & Direction, the speed is set RPM for the motor shaft, but the gearbox must be born in
mind, e.g. for this application I decided to run at 10 RPM, the motor has a 7-1 gearbox, ( 10 x 7 = 70 ) and to
make the motor run clockwise it is a positive value ( negative for anti-clockwise ).
If this value is altered then the screw will be slightly out of position at the start of testing, leave set to
70.
Pr 16 Integral Gain Speed Loop, ( should be set to 80 for this application ).
Pr17 Speed Control Loop Damping, ( should be set to 180 for this application ).
Pr26 Sets Baud Rate for serial communications, default is 6 which equates to 19200.
Pr29 Sets the number of Motor Poles ( in this particular application should be set to 4 ).
b40.14 Enable Serial Communication, set to 1 to enable serial comms with laptop, 0 to disable.
This Parameter bit should always be set 1.
Pr51 Acceleration & Deceleration time for normal operation, in this application set to 0.1 seconds ( will be
displayed as 100 on the LVD2 drive display ).
Pr52 Motor Speed for normal operation, the speed is set RPM for the motor shaft, but the gearbox must be
born in mind, e.g. for this application we want to get 6 revolutions in as quick a time as possible, the optimum
value for this parameter was found by experimentation, e.g. the speed was increased until the optimum value
was found which gave the highest speed yet maintained smooth operation, this was found to be 2250 to convert
this to an actual speed it must be divided by the gearbox ration ( 2250 / 7 = approx. 320 RPM ) this equates to
5.33 revolutions per second giving a ‘Screw In’ time of 1.125 seconds for six bottles. *
Pr64 Distance of travel for normal operation, set in steps where one complete revolution of the motor shaft is
4096 steps, so for 6 revolutions, bearing the gearbox in mind ( 4096x6x7 = 172032 ).
NOTE: Because this value is longer than 1 ‘word’ the value when entered will ‘overlap’ into parameter
Pr65, this is normal.
b70.4 Direction of travel for normal operation, set to 1 or 0 as appropriate to set the desired direction of travel.
b99.6 Extended Parameter Access, setting this parameter bit to 1 gives the user full access to all system
parameters via the LVD2 Keypad.
b99.13 PLC Operation mode, sets the mode of operation of the on-board micro PLC, set to1 to run the
program, 0 to edit the program from the plug-in keypad ( highly un-recommended ).
This Parameter bit should always be set 1.
b99.15 Save Parameter Changes – If any Parameters been changed, then this bit must be set to save those
changes, after setting it will immediately reset itself automatically. See important notes on page 1 of this
document.
* The overall cycle time and bottle throughput for this unit is based around the screw speed noted above, if this
speed is altered than the unit cannot be guaranteed to operate at the required speed. Also the settings
associated with the reject feature – ‘Reject Delay’, ‘Reject On Time’ and ‘Reject Off Time’ will need to be
adjusted to keep the reject routine in synchronisation with the new motor speed, and a new appropriate value
for ‘Screw Timeout’ must be set.
