January 2012 3.15 Digital PLC Inputs/Outputs 223
X9: Safety-related
PLC inputs/outputs
Pin layout of PLB 620x:
The triggering outputs at X9 each supply up to 150 mA of output current. The
only exceptions are the two outputs –STOS.A.G and –STO.A.G with max. 2 A
of output current. In the event of an overload or short circuit and as a conse-
quence of excessive temperature, the individual PLC outputs switch off auto-
matically. Then the outputs will try to switch on again cyclically. Seven outputs
and twelve inputs are available at X9 of a PLB 620x for free use. Further PLC
inputs/outputs must be realized by means of I/O modules.
Ter-
minal
NEW signal
design.
OLD connector/signal design.
(MC 42xC)
Assignm. / Function
1a 24 V.A X34 24 V supply of the outputs MC.RDY,
O.0 to O.2
2a Do not assign – –
3a MC.RDY
a
–SH1A (safe stop)
X41.34 / O33
24 V output: (safe torque off)
Control-is-ready signal
4a O0 24 V outputs (high-side driver)
5a O1
6a O2
7a –ES.A –NE1 / X42.4 / I3
Acknowledgment: "Control is
ready"
24 V input
Emergency Stop input 1
8a I0 24 V inputs (PLC)
9a I1
10a I2
11a I3
12a I4
13a I5
14a –PF.PS.AC –PF.PS.AC (signal on X69) 24 V outputs for powerfail
15a –PF.PS.DC –PF.PS.ZK (signal on X69)
1b 24 V.B X44 24 V supply of the outputs O.3 to O.6
2b 0 V 0 V PLC for all I/Os
3b O3
a
24 V outputs (high-side driver)
4b O4
5b O5
6b O6
7b –ES.B –NE2 / X42.33 / I32
"Drive enabling"
24 V input
Emergency Stop input 2
8b I6 24 V inputs (PLC)
9b I7
10b I8
11b I9
12b I10
13b I11
14b –SP.REF+ X30 Optocoupler input,
Spindle ref.
15b –SP.REF– X30
a. 2 A outputs
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