HEIDENHAIN iTNC 530 HSCI Service Manual page 42

Error message Possible cause of error
Additional information and descriptions
in the manual
External The "control-is-ready" PLC input is not active.
EMERGENCY
The emergency stop circuit was interrupted
STOP 26599
manually or by the control.
EMERGENCY STOP key pressed on machine
operating panel or handwheel
Axis is on hardware limit switch
Wiring interrupted
Relays, safety contactor combinations
defective
"Control is ready" output is not powered
with 24 V.
"Control is ready" output of UEC or PLB
defective
Incorrect Signal of the reference pulse is disturbed
(ground shield).
reference position
<axis>
Position determination via Z1-track is defective.
Wrong encoder line count
Error in HSCI An error occurred during communication with a
unit on the HSCI bus.
communication
21112
Error: Profibus Evaluation of the Profibus configuration
resulted in an error.
configuration
Synchronization The positions of two synchronized axes differ
by a value greater than that defined in machine
monitoring <axis>
parameter MP855.
Handwheel? Electronic handwheel not connected
Incorrect handwheel selected in machine
parameter MP7640
The transmission line is defective or incorrect.
February 2012
Measures for error diagnosis and/or
corrective action
Additional information and descriptions
in the manual
Enable the emergency stop button, switch on
the control voltage, and acknowledge the error
message.
Check the emergency-stop circuit.
(EMERGENCY STOP button, axis limit
switches, wiring, etc.)
Retract the axis.
Check the EMERGENCY STOP chain.
(See ""Control is ready" output and input
(EMERGENCY STOP chain)" on page 17 – 228.)
If "Control is ready" output is defective -->
replace UEC or PLB.
(See "Exchange of HEIDENHAIN components"
on page 29 – 515.)
See "Checking the enables on the iTNC 530
HSCI" on page 17 – 225.
Take measures for noise suppression.
Check the motor table.
Inform your service agency.
See "Speed encoders" on page 19 – 300.
Check all devices and connections.
See "Bus diagnosis" on page 12 – 147.
Inform your service agency.
Reduce the feed rate and increase the spindle
speed.
Remove potential sources of vibration.
If this occurs frequently: Inform your service
agency.
Connect the handwheel via cable adapter.
Check machine parameter MP7640.
Inspect the data transfer line for damage.
See "Handwheel" on page 25 – 401.
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