Manuel_X_232_EN
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27.01.2016
Troubleshooting
Warnings
Q: I try to set P4 by pressing UP/DOWN but it always appears
“Err“.
A: You have tried to calibrate with a too low load or with an unavailable span. Load the car with the payload or control the sensor.
You can increase the sensor signal by loading the cabin with 120% of payload. It is understood that also P4 has to be increased to
120%.
You have tried to teach-in
P4 although Bit6 at X4(synchronization) is set to “High“. This means “Measuring Stop“ and no
measurement will be executed.
You tried to calibrate P4 with a negative signal span. Check polarity settings of sensor and/or X-232.
Q: The alarm contacts are switching during the ride.
A: Short fluctuations of the measured values can be disabled by increasing the response delay by a few seconds and by adding some
kilograms to the hysteresis value. (
→ s. paragraph “Setup Menu“)
Alternative: Connect the output "Measuring Stop" to your control unit. In this way, you can synchronize the CLMI to the elevator. E.g.
You can only accept measurements as long as the door is open.
Q:
The minimum contact doesn’t switch reliably
A: If the switching hysteresis (
→ Setup Menu) is set too large, it may occur that the hysteresis is as large as the set limits for the
minimum load measuring. The CLMI cannot clearly determine the status. Reduce the hysteresis by maximal 50% of the value which
was programmed in
“PE“.
Q:
The minimum contact doesn’t switch.
A: If the parameter
“S“ (external sensor) is set to 1, you must pull down Pin 1 at X5 to 0V, thereby KL3 will be activated. If there is a
cable break or defect motion detector
, KL3 won’t be activated.
As a general rule, the contacts do only switch, if ALL parameters have been programmed.
Q: The zero point is fluctuating.
A: Depending on the chosen strategy of load measuring, the measuring is more or less immune to any kind of fault. Load measuring
at the yoke or fixed point requires an almost frictionless guidance of the car to generate a repeatable zero point. If you can realize a
load measuring below the ground, the effect of the friction can be completely eliminated.
At the yoke, you can reduce the hysteresis by mounting a second sensor at another yoke profile.
The correct mounting of the sensor is the general condition (no color at the bearing areas, screws well tied up)
Q: After a certain time my display shows nothing except a blinking decimal point.
A: After 30 minutes idle time the display changes to the standby-mode. If you press any key, the display will show plaintext again.
Q: During the installation, I have sometimes realized aberrations of the zero point which slowly disappear.
A: The CLMI has an approximation process of the zero point. Is the measured load closer to 40kg than to zero and when this
meas
ured load doesn’t change for two hours, so the CLMI will slowly adopt the 40kg as new zero point. This process would last a few
days, so the CLMI evaluates an optimal zero point. Long-term errors due to drift or continually mechanical abrasion can be
compensated.
Q: I have two sensor inputs at the CLMI. How does the CLMI interpret the signal from these two sensors?
A: The signal of these two sensors is averaged. Therefore all errors, working in the opposite direction are compensated.
It is understood, that the setup, configuration and operation may only be done by qualified personnel.
The series X-232 load indicators must not be used in life-supporting applications. The series X-232 load indicators
must not be used in safety-critical applications.
If you do not pay attention to this security hints, serious damages can be provoked.
General rules for installation
Maintenance, Repairing
Pay attention all the time and mainly during your installation process to all legal rules and security-hints to prevent any accident. Do
always separate the signal lines from power lines (drives, converters) and do never interrupt the signal lines unless you use
designated junction boxes. (X-914)
Tie cable shield (braid) at both ends to a proper ground. Tie all machine parts to one well defined potential by using massive copper
wires. Prevent at any case that a ground current flows over the cable shield. Prevent different potentials in your machine, they will
create currents which can be hardly controlled.
The devices of the serie X-232 do not contain any serviceable parts. Any repairing is done exclusively by the
manufacturer