Operating Instructions ACU
Diagnosis error of function STO; at least one of the shut-down paths STOA and STOB
is defective. Check the devices connected to the shut-down paths; check wiring and
EMC.
Software self-diagnosis has detected an internal error. Please contact your local
BONFIGLIOLI subsidiary.
Error signal of 5-second monitoring. Shut-down paths STOA and STOB were not
actuated at the same time, but with an offset of more than 5 seconds. Check
addressing of shut-down paths or control of protection provision.
Earth fault on output, check motor and wiring.
Set IDC Compensation Limit 415 reached, check motor and cabling, increase limit, if
necessary
Minimum current monitoring, check motor and wiring.
Reference value at multifunction input 1 faulty, check signal.
Reference value signal at EM-S1INA defective, check signal.
Overcurrent at multifunction input 1, check signal.
Resolver error. Check resolver connection and speed.
Resolver counting error. Check resolver connection.
Resolver, wrong no. of pole pairs. Check no. of pole pairs parameters.
Resolver connection error. Check resolver connection.
Encoder signal defective, check connections S4IND and S5IND.
One track of the speed sensor signal is missing, check connections.
Direction of rotation of speed sensor wrong, check connections.
Encoder 2: Division Marks Fault Check encoder settings.
Too few encoder division marks Check encoder settings.
Too many encoder division marks. Check encoder settings.
Encoder 1 Division Marks Fault Correct Division Marks 491 of speed sensor 1; also
refer to Chapter 11.4.2 "11.4.2".
Speed sensor was deactivated. A speed sensor must be activated in configurations
210, 211 and 230. Set evaluation for parameter Operation Mode 490 (not “0 – off”).
If an extension module is installed and setting “2 – speed sensor 2” is selected for
parameter Actual Speed Source 766, you will have to set an evaluation for parameter
Operation Mode 493 (speed sensor 2).
Motor blocked. For the time set in 782 Timeout: Drive blocked the drive will work at
the current limit (728 Current Limit). Check encoder/resolver settings. Check if
parameter 728 Current Limit was set too low. In some situations it may be a good
idea to increase the value of 782 Timeout: Drive blocked. Permanent deactivation of
encoder monitoring via 760 Operation Mode is not recommended.
KTY temperature monitoring error. Check KTY connection.
External error; drive responded according to parameter setting for Op. Mode ext. Error
535. Error was triggered via the logic signal or digital input signal assigned to
parameter External Error 183.
Positioning error Refer to Positioning application manual.
Error in absolute encoder capturing. Please refer to EM-ABS-01 instructions.
Table "Fault Messages" continued on next page.
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