HEIDENHAIN iTNC 530 Service Manual page 47

Error message Possible cause of error
Additional information and descriptions in
the manual
Ext. In-/output not The interface is not connected.
ready
The external device is not switched on or is
not ready.
The transmission cable is defective or
incorrect.
External The "control-is-ready" PLC input is not active.
EMERGENCY
STOP
EMERGENCY STOP key pressed on
machine operating panel or handwheel
Axis is on hardware limit switch
Wiring interrupted
Relays, safety contactor combinations
defective
X34 is not powered with 24 V
"Control is ready" output of MC 320
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: Profibus An error occurred during evaluation of the
Profibus configuration.
configuration
Synchronization The positions of two synchronized axes
differ by a value greater than that defined in
monitoring <axis>
machine parameter MP855.
Handwheel? Electronic handwheel not connected
Incorrect handwheel selected in machine
parameter MP 7640
The transmission line is defective or
incorrect.
July 2010
Measures for error diagnosis and/or
corrective action
Additional information and descriptions in
the manual
Check the data transmission line.
See "Connection Setup" on page 13 – 172.
Release the EMERGENCY STOP switch
Retract axis
Check the EMERGENCY STOP chain (See
"Checking the "Control is ready" output and
input (EMERGENCY STOP chain)" on page
16 – 233).
If "Control is ready" output is defective -->
Replace MC 320 (See "Exchange of the MC
422 B, MC 422 C, MC 420" on page 28 –
542).
Release the EMERGENCY STOP switch
Retract axis
Check the EMERGENCY STOP chain (See
"Checking the "Control is ready" output and
input (EMERGENCY STOP chain)" on page
16 – 233).
If "Control is ready" output is defective -->
Replace MC (See "Exchange of
HEIDENHAIN Components" on page 28 –
523).
See "Checking the Enables on the iTNC
530" on page 16 – 229
Take measures for noise suppression.
Check the motor table.
Inform your service agency.
See "Speed Encoders" on page 18 – 293.
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 MP 7640.
Inspect the data transfer line for damage.
See "Handwheel" on page 24 – 399.
4 – 47