HEIDENHAIN MANUALplus 620 Technical Manual page 1507

January 2012
Safe status Signal
bit
10 –PF.PS.AC
11 –PF.PS.DC
12 –PF.BOARD
13 –N0
14 –REQ.SS2
15 –
The following additional status bits are available for an external PL:
Safe status Signal
bit
16 –SPL.A.WD
17 –SPL.B.WD
18 PGOOD.NC
19 PGOOD.PLC
20 –INT
21..31 1
The following additional status bits are available for an external MB machine
operating panel:
Safe status Signal
bit
16 –SMOP.A.WD
17 –SMOP.B.WD
18 PGOOD.A
19 PGOOD.B
20 1
21..31 1
8.1 PLC Functions
Meaning
Power supply of inverter too low
(parameterized LIFT OFF function in some
cases).
DC-link voltage U too low
Z
(CC: SS1)
Error in the supply voltage of the
respective module (SS1F)
Internal safe status bit
(CC: SS1)
Alarm (SS2)
Reserved
Meaning
SPL watchdog, channel A
Only in controls with functional safety (FS):
SPL watchdog, channel B
Voltage monitoring of NC reports a fault
Voltage monitoring of PLC reports an error
Internal interrupt
Reserved
Meaning
SMOP watchdog, channel A
Only in controls with functional safety:
SMOP watchdog, channel B
Voltage monitoring of channel A reports a
fault
Voltage monitoring of channel B reports a
fault
Reserved
Reserved
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