Mec Speed Level Series Service & Parts Manual page 72

Secton 6 - Electrcal System
problem.
F11:NOT UP
• This message occurs at the start of the DYNAMIC lift if the operator selects a function other than
UP.
F12:TOO MANY
• This message occurs if the DYNAMIC lift takes too long.
• This message could occur if the UP switch was not released at the end of the dynamic lift.
F13:LOW HEIGHT RANGE
• This message occurs at the end of the DYNAMIC lift if the height sensor output did not change
sufficiently to give a reasonably accurate platform height estimate. DIAGNOSTICS / ANALOGS
can be used to check the height sensor output (P8-2 and P8-6) when the platform is fully
lowered and fully raised; a difference of at least 1V is to be expected.
• This message could occur if the UP switch was accidentally opened too early (when the platform
is not fully raised).
F14:BAD HEIGHT
• This message occurs if the height sensor output (P8-2 and P8-6) is out of range during the
DYNAMIC lift. The height sensor output must be between 1.0V and 4.0V. Check DIAGNOSTICS
/ SENSORS to see the output. A reading of 0V or 5V is probably due to a wiring problem.
F15:CHECK ELEV
• This message is given if the elevation switch (P7-5) is open when the platform has been fully
lowered after the DYNAMIC lift.
• This message would occur if the DOWN switch was accidentally opened before the platform was
fully lowered.
• If the platform is fully lowered, check the elevation switch.
F16:LOW ELEV������ O PEN
• This message is given if the elevation switch (P7-5) opened during lift at too low of a height
(below 5%). Check CALIBRATIONS / HEIGHT CALS. The "ElevUp" value shows the recorded
height where the switch opened.
F17:HIGH ELEV������ O PEN
• This message is given if the elevation switch (P7-5) opened during lift at a too high height
(above 25%).
• Check CALIBRATIONS / HEIGHT CALS; the "ElevUp" value shows the recorded height where
the switch opened.
F18:LOW ELEV������ C LOSE
• This message is given if the elevation switch (P7-5) closed during lower at a too low height
(below 5%).
• Check CALIBRATIONS / HEIGHT CALS; the "ElevDown" value shows the recorded height
where the switch opened.
F19:HIGH ELEV������ C LOSE
• This message is given if the elevation switch (P7-5) closed during lower at a too high height
(above 25%).
Page 65 Speed Level Seres - Servce & Parts Manual
January 2019