The System SLIO safety DI module can be used with cable length up to 330m (capacity
up to 100nF, ohmic resistance up to 22.4Ω). General rule: A single-channel sensor is suf-
ficient to achieve SIL2/Cat. 3/PLd; to achieve SIL3/Cat.4/PLe, sensors must be con-
nected via two channels.
Note the following requirements on the sensor signals:
CAUTION!
In order to guarantee accurate detection of sensor signals by the safety
DI module, you must ensure that the sensor signals have a defined
min-
imum duration
.
The
minimum duration
is a minimum switch-on and switch-off duration,
which is necessary to detect a signal in the worst case. The time interval
between two signal transitions must be greater than the Sync Manager
monitoring time (SM Watchdog) for EtherCAT communication to allow
reliable detection of the pulses. This must be specified in the
SPEED7
EtherCAT Manager
within the parameters for the slave station.
Reliable detection by the safety DI module
Parameter short-circuit test
Parametrized input delay
1ms
3ms
15ms
de-activated
7ms
9ms
23ms
activated
8ms
12ms
37ms
In the table exemplary the minimum duration of the sensor signals of the safety DI
module is shown. It depends on the configuration of the short-circuit test and the input
delay in the Configuration tool of the FSoE master.
Requirements to the sen-
sors
Duration of the sensor sig-
nals
VIPA System SLIO
Deployment
Wiring > Requirements to the sensor and actuators
HB300 | SM-S | 02x-1SD10 | en | 20-02
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