Machine Operating Panel - HEIDENHAIN iTNC 530 Technical Manual

3.23 Machine Operating Panel

X3: PLC inputs
X4: PLC outputs
3 – 68
For machines with up to four axes, HEIDENHAIN offers the MB 420 machine
operating panel. It is installed below the TNC operating panel. There is a
version of the MB 420 available with a standard set of keys (see connector
layout for X46). On the underside of the machine operating panel are two
terminal strips bearing the PLC inputs I151 and I152 as well as the PLC
outputs O0 to O7.
Assignment of PLC inputs to the keys of the MB 420:
I I
I I
136 135 134 137
I I I I
128 148 133 149
I
I I I
129 130
131 132
Pin layout:
Terminal
1
2
3
Pin layout:
Terminal
1
2
3
4
5
6
7
8
9
I
I I
138
143 145
I I
I
139 144 150
I I I
140 141 142
Assignment
I151
I152
+24 V
Assignment
O0
O1
O2
O3
O4
O5
O6
O7
0 V
HEIDENHAIN Technical Manual iTNC 530
I
146
I
147