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3.3.2 LE 426 PB (Spindle up to 12 000 rpm)
X2
X1
X13
X12
X4
X3
X23
X31
X6
X5
X21
X9
X14
X22
X25
X8
X30
B
X26
3 – 14
Warning
Do not engage or disengage any connecting elements while the unit is
under power!
X44
X48
X16 X15
X51
X41
X52
X18 X17
X45
X53
X20
X19
X42
X54
X43
X55
X57
X46
X47
X56
X50
X1 to
X6
Position encoder
X8
Analog output 1 to 6
X9
Analog output 7 to 13
X12 Triggering touch probe for workpiece
measurement
X13 Triggering touch probe for tool
measurement
X14 Measuring touch probe (option)
X15 to
X20 Encoder for speed
X21 RS-232-C/V.24 data interface
X22 RS-422/V.11 data interface
X23 Handwheel input
X25 Ethernet interface (option)
X26 Ethernet interface (option)
X30 Reference signal for spindle
X31 NC power supply
X41 PLC output
X42 PLC input
X43 CRT screen or
X49 Color flat-panel display
X44 PLC supply voltage
X45 TNC keyboard unit
X46 Machine operating panel
X47 PLC expansion
X48 PLC analog input
X50 Input for drive motor enabling
X51 to
X56 Output to axes motor power module
X57 Reserved
B
Signal ground
Equipment ground (YL/GN)
HEIDENHAIN Technical Manual TNC 426, TNC 430
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