
Operation
Operating Manual PNOZ ms2p TTL
1001722-EN-03
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7
Operation
When the supply voltage is switched on, the PNOZmulti safety system copies the configur-
ation from the chip card.
The LEDs “POWER”, “DIAG”, “FAULT”, “IFAULT” and “OFAULT” will light up on the base
unit.
The PNOZmulti safety system is ready for operation when the "POWER" and "RUN" LEDs
on the base unit and the "READY" LED on the PNOZ ms2p TTL (Coated Version) are lit
continuously.
7.1
LED indicators
Legend
LED on
LED flashes
LED flashes briefly
LED off
LED
LED status Meaning
POWER
Supply voltage is present
FAULT
External fault leading to a safe condition; the fault is at the in-
cremental encoder inputs whose LEDs are flashing, e.g. short
across the contacts
Internal fault leading to safe condition
SHAFT1
SHAFT2
Encoder or wiring fault
Axis 1 and/or axis 2 are in the normal range (no standstill, no
overspeed)
Axis 1 and/or axis 2 signalling standstill
Axis 1 and/or axis 2 signalling overdrive
X12
X22
Incremental encoders on terminals X12 and/or X22 are connec-
ted correctly
I10, I11,
I20, I21
Proximity switch on terminal I10, I11, I20, I21 is energised