January 2012 8.1 PLC Functions 1507
The following additional status bits are available for an external PL:
The following additional status bits are available for an external MB machine
operating panel:
10 –PF.PS.AC Power supply of inverter too low
(parameterized LIFT OFF function in some
cases).
11 –PF.PS.DC DC-link voltage U
Z
too low
(CC: SS1)
12 –PF.BOARD Error in the supply voltage of the
respective module (SS1F)
13 –N0 Internal safe status bit
(CC: SS1)
14 –REQ.SS2 Alarm (SS2)
15 – Reserved
Safe status
bit
Signal Meaning
16 –SPL.A.WD SPL watchdog, channel A
17 –SPL.B.WD Only in controls with functional safety (FS):
SPL watchdog, channel B
18 PGOOD.NC Voltage monitoring of NC reports a fault
19 PGOOD.PLC Voltage monitoring of PLC reports an error
20 –INT Internal interrupt
21..31 1 Reserved
Safe status
bit
Signal Meaning
16 –SMOP.A.WD SMOP watchdog, channel A
17 –SMOP.B.WD Only in controls with functional safety:
SMOP watchdog, channel B
18 PGOOD.A Voltage monitoring of channel A reports a
fault
19 PGOOD.B Voltage monitoring of channel B reports a
fault
20 1 Reserved
21..31 1 Reserved
Safe status
bit
Signal Meaning
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