VAT 642 Series - Page 61

Series 642 INSTALLATION
742280ED Edition 2017-11-24 61/
119
Inquiry function
Command Acknowledgement
Description
WARNINGS
Get
i:51 i:51abcdefgh
data length 8 characters
a 0 = no service required
1 = service request, it is indicated when the control unit detects that
motor steps are apparently not effective. This may happen when the valve
is heavily contaminated or the gate seal is heavily sticking. These ‚lost‘ steps
are recognized and will be repeated to attempt target position in the short
term. But in the medium term the valve requires cleaning or inspection.
b 0 = LEARN data set present, 1 = LEARN data set not present
c 0 = power failure battery ready
1 = power failure battery not ready
d 0 = compressed air supply ok
1 = compressed air supply not ok
efgh reserved, do not use
This function returns warning information about the valve. If a warning is present
countermeasure should be taken. Use RESET command to delete service request bit.
Remark:
Without LEARN the valve is not able to run pressure control
THROTTLE CYCLE
COUNTER
Get
i:70
i:70
aaaaaaaaaa
data length 10 characters
aaa…aaa number of throttle cycles
This function returns the number of throttle cycles. A movement from max. throttle position
to open back to max. throttle position counts as one cycle. Partial movements will be
added up until equivalent movement is achieved.
ISOLATION CYCLE
COUNTER
Get
i:71
i:71
aaaaaaaaaa
data length 10 characters
aaa…aaa number of isolation cycles
This function returns the number of isolation cycles. Each closing of the sealing ring
counts as one cycle.
POWER UP COUNTER
Get
i:72
i:72
aaaaaaaaaa
data length 10 characters
aaa…aaa number of power ups
This function returns the number of control unit power ups.