S2Tech 699Plus Firmware Update

699Plus –
New Functions – FIRMWARE UPDATE
Troubleshooting functions
During system's calibration it can happen that the lift
installer has unsatisfying calibration due to errors in
performing the calibration procedure or due to the
way lift has been installed or for wrong installation of
the measurement system (wrong placement of the
sensor with poor sensitivity to load variations, etc).
The above conditions can be detected
measurements with poor repeatability or larger than
expected measurement errors, or errors indicated on
699Plus display.
Messages can be:
a) indications to the installer, that something is
not as ideal for the correct working of the
measurement system, without blocking the lift
b) error messages indicating that performed calibration cannot grant a conversion of the internal
measurement into trustable weight indication, blocking the measurement system
c) error messages indicating a calibration where the internal AD converter is not working, for the
expected measuring range on its working area
A) Calibration concepts:
• To calibrate 699, MANU procedure needs to acquire the coordinates of two points, to define the
conversion function between the measured signals (expressed in internal AD points) and the
reference load.
• TARE: empty cabin.
• HI: cabin loaded with a load as near as possible to the lift's maximum capacity.
• After a calibration, at the reboot, calibration parameters are verified to check the correctness of
the conversion in the selected engineering units, signaling (with Error codes Er.XX) the
measurement conditions that may lead to non-consistent conversions.
• If 699 Plus indicates an Er condition, Tare and HI parameters can be substituted with a new set of
coordinates with a new calibration.
Notice: The information in this manual is subject to change without notice.S2Tech shall not be liable for technical or editorial errors or omissions contained herein, nor for incidental or consequential damages resulting from the furnishing, performance, or use of this material. This manual contains information protected by
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Via Imperia, 28 Milano – ITALY
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as
e-mail: info@s2tech.it
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Some common calibration mistakes:
 942 Strain Link is installed on the neutral axis of a bending beam, having not enough signal
variation (as percentage) corresponding to load changes
 Structure is too stiff, or Strain link is not correctly fixed on the structure surface (screws not
tightened, paint / rust as interface on the mounting surface, elastic washers used instead of supplied
plain washers, etc.)
 MRL Multirope sensor is installed on the counterweight rope side and measurement is not in
position to represent - with enough percentage change - the changes of the applied load
 MRL Multirope sensor has been installed with screws not correctly touching the inside of the
deflection bar (see instruction manual)
 Electrical connections are not properly done, since no percentage changes are shown when load
changes.
 Car floor is installed on TSP sensors but touches other structures
 Excessive friction between the guides and the sliding guide shoes is indicated by a suddenly
increase of the value when car starts to move, that then stabilize at lower values.
 Problems of guide geometry can be associated to sudden changes in the displayed value, when car
is moving on the shaft
 Etc
In the event of an excessive load, which saturates the input of the instrument, Er.28 will appear on the
display.
B) To understand the situation, the following error messages indicates:
ER.01 Negative measurement. ER01 indication is displayed alternatively to the measured weight
(polarity is indicated only with 3 digits values, i.e. -999) – verify zeroing with C key,
electrical connection and system calibration.
Available from firmware version 1.37
ER.22 High load sensitivity. Verify that calibrated [C] screws correspond to rope's diameter
and that no ropes overlap
HI(AD)-Tare(AD)/ HI(Kg)-TARE(Kg) > 500 bit/kg
Conversion slope not correct: Verify that HI value is entered with the right resolution (use
weight at least 80% FSCA).
ER.23 HI value is too low (in engineering units).
HI-Tare must be > 10
ER.24 Known load for calibration is too low. Increase load.
HI(AD)-Tare(AD) <100
ER.28
Overflow state detected for ADC (positive or negative) during normal measurement.
In case that AREL parameter (available on SERV menu, default = 0) is set to 1, this error
condition will activate relay the greatest percentage, blocking the lift.
ER.30 Pushbutton detected as continuously pressed at the end of the calibration procedure (reboot)
ER.FF ER.FF can be shown after calibration and reboot of the unit, if the calculated ADC points
corresponding to the greatest LEV percentage (Lev1, Lev2 or Lev3) multiplied by FSCA
value is greater than the working limits for the ADC.
ER.FE or ER.FD can be shown after calibration and reboot of the unit, if the calculated
ADC points corresponding to HI / Tare is greater / lower than the working limit for the
ADC.
In case that AREL parameter (available on SERV menu, default = 0) is set to 1, this error
condition will activate relay the greatest percentage, blocking the lift.
Z:\Manuali\699Plus 2k17\699Plus Troubleshooting Functions Fw 1.41 UK 130421.docx
Versione : UK 1r1 dated 13/04/21
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