4. Commissioning
4−13
Festo P.BE−MPAL−EN en 1008NH
4.4
Troubleshooting
4.4.1
Switching status indicator of the solenoid coils
The LEDs on the valves show the switching statuses of the
solenoid coils.
LED (yellow)
Switching position
of the valve
Meaning
off
Neutral position
Logical 0 (signal not applied)
Switching position (normal
case)
Logical 1 (signal is present, valve has switched)
LED lights up
Neutral position (error)
logical 1 (signal is present, valve has
not
switched):
Load voltage of the valves lies below the
permitted tolerance range
Compressed air supply not OK
or
Pilot exhaust air blocked
or
Servicing required
Tab.4/5: Meaning of the LED display
4.4.2
Impairment of functions
After switching on the compressed air supply or when subse
quently testing the individual valves, you can learn the following
about the operating status of the pneumatic system:
Summary of Contents for MPA-L Series
Page 2: ......
Page 8: ...Contents and general safety instructions VI Festo P BE MPAL EN en 1008NH ...
Page 15: ...Overview of components 1 1 Festo P BE MPAL EN en 1008NH Chapter 1 ...
Page 40: ...1 Overview of components 1 26 Festo P BE MPAL EN en 1008NH ...
Page 41: ...Mounting 2 1 Festo P BE MPAL EN en 1008NH Chapter 2 ...
Page 55: ...Installation 3 1 Festo P BE MPAL EN en 1008NH Chapter 3 ...
Page 85: ...Commissioning 4 1 Festo P BE MPAL EN en 1008NH Chapter 4 ...
Page 100: ...4 Commissioning 4 16 Festo P BE MPAL EN en 1008NH ...
Page 101: ...Conversion and maintenance 5 1 Festo P BE MPAL EN en 1008NH Chapter 5 ...
Page 128: ...5 Conversion and maintenance 5 28 Festo P BE MPAL EN en 1008NH ...
Page 129: ...Technical appendix A 1 Festo P BE MPAL EN en 1008NH Appendix A ...
Page 141: ...Supplementary overview of components B 1 Festo P BE MPAL EN en 1008NH Appendix B ...
Page 150: ...B Supplementary overview of components B 10 Festo P BE MPAL EN en 1008NH ...
Page 151: ...Index C 1 Festo P BE MPAL EN en 1008NH Appendix C ...
Page 152: ...C Index C 2 Festo P BE MPAL EN en 1008NH Contents C Index C 1 ...