Maintenance
VTK-TR-BA-072e-1 - User Manual MDS 358X Series
10 Maintenance
10.1 Maintenance Indicator
The integrated function “Cycle Count” relates to the valve as a whole and is predetermined by
the manufacturer. As soon as the preset number of cycles is complete (100 %), the red
maintenance LED on the control panel is lit. The manufacturer (or an authorized subcontractor)
has to be informed at once.
In between, you can inspect the current state. Use the function “Maint. Cycle” in the submenu
“Status” (see paragraph 4.5.4, page 34). The result is visualized by eight bars on the screen, each
of them representing 12.5 % of the final value. Be aware that the bar is only updated during a
start-up of the MDC.
INFORMATION
Suppress maintenance messages
Activation of the red maintenance LED can be suppressed by switching “Maint. Message” in the
submenu “Status” to “OFF”. This should only be done, if you know your system very well.
Otherwise, you might cause damages through missed maintenance dates.
Additional cycle numbers can individually be agreed for tappet and nozzle insert. In factory
settings, the value of “Infinite” is assigned to both of the targets. If you wish to check a particular
value, proceed as follows, starting from the first menu level:
• 1x [→]-key = Indicates the interval for exchange of the nozzle insert
• 2x [→]-key = Indicates the interval for exchange of the tappet
To enter a desired final value, you have to use the functions “Set Nozzle” for the nozzle and “Set
Tappet” for the tappet. They are located in the submenu “Status”. Results are also displayed in
the form of 8 bars, each of them representing 12.5 % of the total value. Once 100 % are reached,
the red maintenance LED is lit. The corresponding item (nozzle or tappet) has to be exchanged.
After the exchange, you have to reset the corresponding counter to “0”. Use the functions “Reset
Nozzle” or “Reset Tappet” in submenu “Status” (see paragraph 4.5.4, page 34).
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