HEIDENHAIN MANUALplus 620 Technical Manual page 269

3.26 MB 620T Machine Operating Panel
Pin layout for MB 620T (FS)
January 2012
For lathes, HEIDENHAIN offers the MB 620T machine operating panel with
HSCI interface. It is based on the MB 620 and contains in addition two override
potentiometers for adjusting the spindle speed and the feed rate.
On the underside of the machine operating panel are terminal strips bearing
the PLC inputs as well as the PLC outputs. Also, connection X23 (283) for HR
serial handwheels is on the underside of the MB 620T.
Connec-
tor
X17
X18
X500
X502
X6
X7
X10
X23
X30
X31
X101
3.26 MB 620T Machine Operating Panel
Function
Emergency stop (MB)
Emergency stop (MB)
HSCI output
HSCI input
PLC inputs
PLC outputs
Interface to keyboard and potentiome-
ters
Handwheel connection
Connection for handwheel adapter
Permissive key, NC Start, NC Stop
24 V NC power supply
Protective ground
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