HEIDENHAIN iTNC 530 Service Manual page 45

Signal
Power module unit
ready (LT-RDY)
MC enabling marker
X150/X151 drive
enabling
Power module active
(–SH2)
Current controller active This signal shows the status of the
Speed controller active
May 2006
Meaning
The power module is ready:
Safety relay has picked up
Main contactor is switched on
SH1 (MC) is "High"
No error from the power module
The MC can accelerate the switch-off via
this marker.
The signal shows the enabling status for
the "X150/X151" switch-off. The signal is
formed from the status of the inputs
X150/X151 and the setting in MP2040.x.
The signal shows the status of the
SH2 line to the power module. The
CC activates/deactivates the line for
switching off the power module.
current controller. The current controller
is either switched on (in control) or
switched off.
This signal shows the status of the speed
controller. The speed controller is either
switched on (in control) or switched off.
Colors
Gray: No information about
the signal available
Green: Power module is
ready
Red: Power supply unit not
ready for operation
Gray: No information about
the signal available
Green: Enabling
Red: Do not enable
Gray: No information about
the signal available
Green: Enable: There is
currently no switch-off via
X150/X151
Red: Do not enable: The
drive is currently switched
off or locked via X150/X151
Gray: No information about
the signal available
Green: Enabling: The signal
SH2 is not active
Red: No enabling: The
signal SH2 is active
Gray: No information about
the signal available
Green: Enable: Current
controller is switched on (in
control)
Red: No enabling: Current
controller is off
Gray: No information about
the signal available
Green: Enable: Current
controller is switched on (in
control)
Red: No enabling: Speed
controller is off
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