Vermes MDS 358X user Manual.pdf - 第157页

Error Me ssag es 146 VTK - TR -BA- 072e - 1 - User Manua l MDS 358X S eries 501 501 Valve Def ect Error The valv e fails durin g oper ation, e. g. due t o a damaged piezoel ectric elem ent. Impor tant n ote ! If th ere i…

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Error Messages
VTK-TR-BA-072e-1 - User Manual MDS 358X Series
145
301 301 No Valve Present Error
The control unit does not recognize the valve during startup.
Error code display:
301 No Valve Present Error
Error code status menu:
301 No Valve Present Error
Error handling:
• The actuator connection has not been plugged in
correctly. Switch OFF MDC and inspect the actuator
cable and its connection. If the actuator cable is
damaged, it must be exchanged before restarting.
• Check MDC
• Send valve and/or MDC to VERMES Microdispensing or
to your supplier
Valve:
Valve still open (start-up of the MDC)
302 302 Actuator Connection Error
With system in operation, the connection between valve (actuator) and MDC is disrupted.
Error code display:
302 Actuator Connection Error
Error code status menu:
302 Actuator Connection Error
Error handling:
• The actuator connection has not been plugged in
correctly. Switch OFF MDC and inspect the actuator
cable and its connection. If the actuator cable is
damaged, it must be exchanged before restarting.
• Check MDC
• Send valve to VERMES Microdispensing or to your
supplier
Valve:
Valve is open
303 303 adjust error
This error can happen during operation. During the adjust a problem affects the calibration.
Error code display:
303 adjust error press enter
Error code status menu:
303 adjust error
Error handling:
• Switch OFF MDC, switch it back ON and try again.
• If possible, check MDC with a different valve, to see, if
the adjust works there
• If possible, check valve with a different MDC, to see, if
the adjust works there
• Send valve and/or MDC to VERMES Microdispensing or
to your supplier
Valve:
Valve is closed
Error Messages
146
VTK-TR-BA-072e-1 - User Manual MDS 358X Series
501 501 Valve Defect Error
The valve fails during operation, e.g. due to a damaged piezoelectric element.
Important note!
If there is a valve error, while a maintenance is needed (according to warranty and
maintenance document), the message “Maintenance needed” is shown in the display.
Error code display:
501 Valve Defect Error
or
Maintenance needed
Error code status menu:
501 Valve Defect Error
Error handling:
• Switch off the MDC, remove the valve and send it to
VERMES Microdispensing or to your supplier (regular
maintenance is advisable)
Valve:
Valve is open
Error Messages
VTK-TR-BA-072e-1 - User Manual MDS 358X Series
147
502 502 MDV TempHigh
Automatic shut-down because of high temperature
In order to protect the piezoelectric element from excessive heat, the temperature is internally
monitored by a corresponding circuit. This is automatically switching OFF the system in case
of need. As the needle lift has a big impact on the condition of the piezo, the temperature
limit is depended on the needle lift as well.
Limits:
NL ≤ 80 % = 140 °C
NL > 80 % = 120 °C (from 81 % – 100 % the temperature is variable at ca. 140 °C – 120 °C)
Once the temperature has fallen below 80 °C, the display changes from “502 MDV TempHigh
Please Wait” to “502 MDV TempHigh Press Enter”. After pressing the [enter] key, you can
again trigger normally. During the display of “502 MDV TempHigh” the valve is closed.
If the error message happens directly after starting the MDC, pressing [enter] will initiate a re-
start.
In certain circumstances, it can happen that in this phase an error “501 Valve Defect Error” is
detected. In this case, both errors are shown in the display of the MDC (see picture below).
Follow the instructions regarding error 501.
Important Note!
This error message can also appear, when the MDC is connected to an MFC 3000 for cooling a
valve, and you switched ON the MDC too early.
When using an MFC for cooling, you always have to keep this order of steps:
1. Switch ON MFC
2. Switch ON the channel used for cooling at the MFC
3. Switch ON MDC
Error code display:
502 MDV TempHigh Please Wait
Error code status menu:
502 MDV TempHigh
Error handling:
• The temperature of the valve is too high. System has to
cool off, then press [enter]. Maybe you have to lower the
Needle Lift and/or frequency parameters, in order to
prevent a re-occurrence of the problem. In case of an air
cooled valve, you need to increase the air flow.
• Switch OFF control unit, and inspect the sensor and
actuator cables and their connections. If a cable is
damaged, it must be exchanged before restarting.
• If your dispensing application includes the use of an
MFC and a flow control valve FCV, make sure the
channel for cooling in the MFC is switched “ON”, before
you start the MDC (see also User Manual MFC 3000,
chapter 3.8.3)
Valve:
Valve is closed