Solicap M FTI55, FTI56 Commissioning
Endress+Hauser 63
6.2.11 Setting the MIN/MAX and SIL failsafe mode
!
Note!
The SIL mode function is only available in conjunction with electronic insert FEI55.
!
Note!
By selecting the failsafe mode correctly, you ensure that the output always operates safely with
quiescent current.
– Minimum failsafe mode (MIN): The output switches if the switch point is undershot (rod/rope
uncovered), a fault occurs or the line voltage fails.
– Maximum failsafe mode (MAX): The output switches if the switch point is exceeded (rod/
rope covered), a fault occurs or the line voltage fails.
To set the MIN or MAX failsafe mode, proceed as follows:
1. Turn the function switch to position 7.
2. Failsafe mode
– Press the "–" key for at least two seconds to set the MIN failsafe mode. The green LED 1
starts to light up.
– Press the "+" key for at least two seconds to set the MAX failsafe mode. The green LED 5
starts to light up.
You have now set the failsafe mode and can turn the function switch back to position 1 to resume
operation.
Locking the SIL mode (only with electronic insert FEI55)
You can use the "SIL mode" to protect the device settings from being changed accidentally. The
device settings can only be changed once the "SIL mode" has been unlocked.
• Turn the function switch to position 7 "locking/unlocking the SIL mode".
• Check the MIN or MAX failsafe mode selected.
• To unlock the selected failsafe mode, proceed as follows:
– Press the "–" and "+" keys simultaneously for approx. 4 seconds and
– release the keys when the red LED (fault message) starts to flash.
!
Note!
Locking in the "Lock SIL mode" activates the fault message at the current output (I < 3.6 mA). This
is signaled by the red LED 3 lighting up.
Function switch
position
Function – key + key Light emitting diodes (LED signals)
A B C 1 (green) 2 (green) 3 (red) 4 (green) 5 (green) 6 (yellow)
1
Operation Flashes
Operational
LED
On***
(MIN-SIL)
Flashes
(warning/
alarm)
On***
(MAX-SIL)
On/off/
flashes**
7
MIN-/MAX
Failsafe mode
Press for
MIN
Press for
MAX
Off
(MIN)
On *
(MAX)
**
SIL mode***
lock/unlock
Press both keys On
(MIN-SIL)
On
(MAX-SIL)
* These settings are factory settings.
** Switch status signaling (on/off/flashing) depends on the mounting location selected and the failsafe mode (MIN/MAX) set.
The LED flashes if a calibration has not yet been carried out.
*** Only in conjunction with electronic insert FEI55 (SIL). The device is in the SIL mode. To change the current settings, the device must be unlocked.
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