Danfoss PVED-CLS User Manual

© Danfoss | August 2018 AQ00000211 | 65
ENGINEERING TOMORROW
9.4 AUTO-CALIBRATION
If an OEM does not want to develop their own auto-calibration routine, the PVED-CLS offers a build-in auto-calibration
function, which can be invoked from the PLUS+1 SERVICE TOOL or an external tool by using the service CAN
messages. The auto-calibration is divided into three separate calibration routines; one for the WAS one for the spool and
one for Joystick.
As per default, the PVED-CLS will boot-up in WAS calibration service mode if, depending on the WAS interface type
(P3244), the corresponding counter-parameter and bit inverted counter-parameter are set to 0 and 255, respectively.
Name
Address
Data type
Unit
Description of parameter
User
Range
Danfoss default value
Safety critical parameters ‘S’
Min.
Max.
WAS interface P3244 U8 -
Wheel Angle Sensor Interface Type
Valid Values: 0 (ANALOGUE); 1 (CAN); 2 (NONE)
OEM 0 2 0
Spool dead-band
Calibration counter
P3771 U8 - Spool dead-band Calibration counter OEM 0 255 0
Bit inverted value for
Spool dead-band
Calibration counter
P3772 U8 - Bit inverted value for Spool dead-band Calibration counter OEM 0 255 255
Analogue WAS
calibration counter
P3773 U8 - Analogue WAS calibration counter OEM 0 255 0
Bit inverted value
Analogue WAS
calibration counter
P3774 U8 - Bit inverted value Analogue WAS calibration counter OEM 0 255 255
CAN based WAS
calibration counter
P3775 U8 - CAN based WAS calibration counter OEM 0 255 0
Bit inverted value for
CAN based WAS
calibration counter
P3776 U8 - Bit inverted value for CAN based WAS calibration counter OEM 0 255 255
Calibration counter -
Analogue joystick
P3777 U8 - Analogue sensor based Joystick calibration counter OEM 0 255 0
Bit inverted value for
"Calibration counter -
Analogue joystick"
P3778 U8 - Bit inverted value for Analogue sensor based Joystick calibration counter OEM 0 255 255
Table 29
Prioritization is as follows:
1. The PVED-CLS will boot into WAS calibration service mode if one of the below condition is true.
A. If P3244 (WAS interface) is set to 0, P3773 is set to 0 and P3774 is set to 255.
OR
B. If P3244 (WAS interface) is set to 1, P3775 is set to 0 and P3776 is set to 255.
2. PVED-CLS will boot into Joystick calibration service mode if one of the below condition is true
A. If P3244 (WAS interface) is set to 1, condition 1B is not fulfilled, P3777 set to 0 and P3778 set to 255.
OR
B. If P3244 is set to 2, P3777 is set to 0 and P3778 set to 255.
3. PVED-CLS will go into Spool calibration service mode if P3244 (WAS interface) is set to 1 or 0, the conditions
1A, 1B and 2A are not fulfilled, P3771 is set to 0 and P3772 is set to 255.
4. If the all the above conditions, 1 to 3, are not fulfilled then the PVED-CLS will boot in “operation mode”.

Danfoss PVED-CLS Specifications

General

Brand	Danfoss
Model	PVED-CLS
Category	Controller
Language	English