Installation, Operating & Maintenance Instructions
Series 650 DN 100-250 (I.D. 4“ - 10”), RS485
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email
www.vatvalve.com
271149EA
2007-06-12
47/77
Command
Acknowledgement
(within 10ms after reception of command)
Inquiry function
Description
Get
[i:51][CR][LF] [i:51][abcdefgh][CR][LF]
WARNINGS
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 (only series 65)
1 = compressed air supply not ok (only series 65)
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.
Note: Without LEARN the valve is not able to run pressure control
Set [i:62][CR][LF]
[i:62][aaaabbbb][CR][LF]
SENSOR OFFSET
data length 8 characters
aaaa
offset sensor 1 (-140 ... 0140 = -1.40V ... +1.40V)
bbbb
offset sensor 2 (-140 ... 0140 = -1.40V ... +1.40V)
This function returns the sensor offset voltages for both sensors (adjusted by ZERO).
Set [i:60][CR][LF]
[i:60][xxxxxxxx][CR][LF]
SENSOR 1 OFFSET
data length 8 characters
xxxxxxxx
offset sensor 1 (-1400000 ... 01400000 = -1.400000V ... +1.400000V)
This function returns the sensor 1 offset voltage (adjusted by ZERO).
Set [i:61][CR][LF]
[i:61][xxxxxxxx][CR][LF]
SENSOR 2 OFFSET
data length: 8 characters
xxxxxxxx
offset sensor 2 (-1400000 ... 01400000 = -1.400000V ... +1.400000V)
This function returns the sensor 2 offset voltage (adjusted by ZERO).