26.03.1996 • KHH SEENXL13A
•For Authorized KCI Service Agents Only•
KCI Hoists Corporation reserves the right to alter or amend the above information without notice
Page 28
XL
Service Manual
CU1
KCI KONECRANES GROUP
KCI HOISTS CORPORATION
Err_5: LOAD SENSOR CALIBRATION ERROR - The no-load (SL 0) setting voltage is out of
range.
Normal action: Repeat the setup routine. Measure the voltage between CU1:2
and CU1:3 (values should be found somewhere in the range of 3,9 - 6,1 VDC with
any load from 0 to 100 %).
Err_6: LOAD SENSOR CALIBRATION ERROR - The full-load (SL100) setting voltage is out of
range.
Normal action: The same action as with the Err_5.
Err_7: LOAD SENSOR CALIBRATION ERROR - The voltage difference between the no-load
(SL 00) and full-load (SL100) setting voltages is too low.
Normal action: Repeat the setup routine. If the error still occurs check the load
sensor and its mounting. The voltage difference measured between CU1:2 and
CU1:3 must be at least 0,4 VDC between the no-load and full-load settings.
Err_8: MEMORY ERROR, UPDATE - the CU1 has failed to update its memory content.
Normal action: Switch the power off for at least 5 seconds. If this does not help,
change the CU1.
Err_9: SYSTEM ERROR (≥ P2.02)
Normal action: Switch the power off for at least 5 seconds. If this does not help,
change the CU1.
Err_10: CU1:9-10 CHECKING FAILURE (≥ P2.11) - The CU1 has detected a continuous
hoisting request in non-active state (active signal, CU1:13-CU1:14, is OFF but hoisting
request is ON) - i.e. this error message is displayed if the hoisting request is not
requested by a crane operator or the hoisting direction is changed very rapidly from
downwards to upwards. (CU1 checks that the hoist inhibit switch between CU1:9 and
CU1:10 operates correctly).
Normal action: Check hoisting request circuit that the hoisting request is OFF
when it should be. If there is voltage on CU1:9 (> 30 VAC) without a hoisting
request, check the hoisting control circuit.
The Err_10 may also be caused because of very long control wires i.e.
capacitance on wires is too large. In that case connect a RC-circuit between
CU1:9 and control voltage neutral (e.g A-K1:A1). If this does not help replace the
CU1.
Err_11: TOO LONG AD-CONVERSION TIME (≥ P2.13) - CU1 detects, that the AD-
conversion time is too long when power is switched on.
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