Troubleshooting; Error Codes - Festo MS6-SV-*-E-10V24 Series Quick Start Manual

3

Troubleshooting

3.1

Error codes

In case of malfunction of the MS6-SV check the LED display. Error codes are read by the flashing of the LED. The
error code is indicated by four flashes of the green LED (speed 2 hertz). Then the flashes of the red LED display
the error code.
Note
The number of flash pulses displays the error code.
Error code
"red LED"
Status display
"green LED"
Error code Possible cause
2 Bouncing on the enable signals
5 Power supply is insufficient, voltage
drops, tolerance out of range
6 Pressure supply was interrupted
Compressed air interrupted during self-
test
Air supply on secondary side too high
(effect: pilot pressure drops)
8 Enable signals outside the specification
Multi-pin plug socket NECA or cable is
defective
8 or 11 PLC emits test pulses that are off-set to
the enable signals (length 4 ms)
Malfunction due to electrical or electro-
magnetic effects (EMC notes not com-
plied with)
Table 1: Explanation error codes
Application Note – Quick Start Guide for fault clearance and troubleshooting – 1.10
Remedy
Make sure that only debounced contacts are used
(e.g. for protective guards or doors).
Ensure that the power supply is sufficient.
Re-establish compressed air supply
Check compressed air supply and close actuators
(blowing air, vacuum suction nozzle)
Comply with specification
(chapter 6 in this script)
Check Multi-pin plug socket NECA or cable and re-
place if defective (chapter 7)
– Switch off test pulses
– Use NECA MP5 plug connector
– Comply with max. length of the signal lines
– Connect earthing correctly
– Observe min. wall distance
– Do not install cables behind the MS6-SV
– (chapter 4 in this script)
Troubleshooting
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