HEIDENHAIN iTNC 530 HSCI - Page 321

July 2013 3.27 MB 620 machine operating panel 321
X31: MB 620,
permissive button /
NC start / NC stop
Standard wiring of connection X31 for MB 620 without FS:
Pin layout of MB 620 FS:
NC start and NC stop are normally-open contacts on the MB 620 (FS).
Connecting
terminals
Assignment
1 Reserved (do not use)
2 Reserved (do not use)
3 Reserved (do not use)
4 Reserved (do not use)
5 NC Start
a
a. With standard wiring
6 Reserved (do not use)
7 NC Start power supply (+24 V NC)
a
8NCstop
a
9 Reserved (do not use)
10 NC Stop power supply (+24 V NC)
a
Connecting
terminals
Assignment
1 Optional: Permissive button channel A / terminal 1 (+24 V)
2 Optional: Permissive button channel A / terminal 2
3 Optional: Permissive button channel B / terminal 1 (+24 V)
4 Optional: Permissive button channel B / terminal 2
5 NC Start channel A / terminal 1
a
6 NC Start channel B / terminal 2
a
7 NC Start shared terminal (+24 V NC)
a
8 NC Stop channel A / terminal 1
a
9 NC Stop channel B / terminal 2
a
10 NC Stop shared terminal (+24 V NC)
a
a. With standard wiring
Danger
Please note that the MB 620 is powered by +24 V NC.
For the entire HSCI system, the +24 V NC supply voltage is required to be
safely separated voltage. The +24 V NC supply voltage must not, under any
circumstances, be connected with the +24 V PLC supply voltage, because
this removes the double basic insulation.
Attention
The interface is electrically separated (protective extra-low voltage (PELV)
as per EN 61800-5-1).