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Operation VTK - TR -BA- 171e - 1 - User Manua l MDS 3080 -V 61 7.4 Minimum and Maximum Parameter Limits Parameters Min. Value Max. Value Transfo rm. F acto r (serial inte rface) Rising NL 2 % = R I 0 . 01 ms NL 10 % = RI…

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Operation
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VTK-TR-BA-171e-1 - User Manual MDS 3080-V
Delay (DL)
This waiting phase between two cycles is adjustable in steps of 0.1 ms, but it
is recommended to use at least 0.2 ms.
CAUTION!
For valves operated with connected heating systems, a minimum delay of 2.0
ms is necessary. Lower values can only be achieved, if the heater is operated
via an external control unit.
Needle Lift (NL)
This parameter describes the stroke of the tappet, compared to its full value
of 100 %.
Tab. 19: Parameters for dispensing
Operation
VTK-TR-BA-171e-1 - User Manual MDS 3080-V
61
7.4 Minimum and Maximum Parameter Limits
Parameters Min. Value Max. Value Transform. Factor
(serial interface)
Rising
NL 2 % = RI 0.01 ms
NL 10 % = RI 0.05 ms
NL 20 % = RI 0.10 ms
NL 30 % = RI 0.15 ms
NL 40 % = RI 0.20 ms
NL 50 % = RI 0.25 ms
NL 60 % = RI 0.30 ms
NL 70 % = RI 0.35 ms
NL 80 % = RI 0.40 ms
NL 90 % = RI 0.45 ms
NL 100 % = RI 0.50 ms
300 ms
*10 or *100
e.g.
RI = 0.5 ms ≙ 5
or
RI = 0.05 ms ≙ 5
(Depends on the
command. See the
command description in
paragraph 8.1.2.2,
page 88.)
Falling
NL 2 % = FA 0.01 ms
NL 10 % = FA 0.03 ms
NL 20 % = FA 0.06 ms
NL 30 % = FA 0.09 ms
NL 40 % = FA 0.12 ms
NL 50 % = FA 0.15 ms
NL 60 % = FA 0.18 ms
NL 70 % = FA 0.21 ms
NL 80 % = FA 0.24 ms
NL 90 % = FA 0.27 ms
NL 100 % = FA 0.30 ms
300 ms
*10 or *100
e.g.
FA = 0.8 ms ≙ 8
or
FA = 0.08 ms ≙ 8
(Depends on the
command. See the
command description in
paragraph 8.1.2.2,
page 88.)
Open Time
0 ms
3000 ms
*10
e.g.
OT = 2 ms ≙ 20
Needle Lift
2 %
100 %
*1
e.g.
NL = 50 % ≙ 50
Number of Pulses (NP)
1 pulse
32000 pulses
*1
e.g.
NP = 80 ≙ 80
Delay
0.1 ms
(2 ms with heater)
1000 ms
*10
e.g.
DL = 5 ms ≙ 50
Heater
Target temperature
180 °C
*1
e.g.
Temp = 120 °C ≙ 120
Tab. 20: Minimum and maximum parameter limits
Operation
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VTK-TR-BA-171e-1 - User Manual MDS 3080-V
IMPORTANT NOTE
Minimum values for Fixed Adjust mode and First Drop mode
The minimum values for Falling and Rising in the table are only correct, if the system is not in
fixed adjust mode (see paragraph 7.12, page 76) or first drop mode (see paragraph 7.11,
page 71).
In fixed adjust mode, the minimum values for Falling (0.30 ms) and Rising (0.50 ms) are fixed and
do not depend on the Needle Lift.
In first drop mode, the minimum values for Falling and Rising are determined by the following
formulas:
Min. Falling = (Min. Falling at 100% NL) x (TNL + 30)/100
Min. Rising = (Min. Rising at 100% NL) x (TNL + 30)/100
If this formula results in a value, which cannot be used, it is rounded up to the next possible
value (e.g. 0.201 ms would be rounded to 0.21 ms).