P2HZ X4P
Operating Manual P2HZ X4P
20076-EN-08
12
Preparing for operation
Supply voltage
AC
DC
A1
A2
L1
N
F1
A1
A2
L+
L-
F1
Input circuit
Single-channel
Dual-channel
Two-hand pushbutton
with
detection of shorts across
contacts
S33
S11
S32
S21
S1
S2
Feedback loop
without feedback loop monitor-
ing
with feedback loop monitoring
Link or contacts from external con-
tactors
Legend
}
S1/S2: Two-hand pushbuttons
Operation
When the relay outputs are switched on, the mechanical contact on the relay cannot be
tested automatically. Depending on the operational environment, measures to detect the
non-opening of switching elements may be required under some circumstances.
When the product is used in accordance with the European Machinery Directive, a check
must be carried out to ensure that the safety contacts on the relay outputs open correctly.
Open the safety contacts (switch off output) and start the device again, so that the internal
diagnostics can check that the safety contacts open correctly
}
for SIL CL 3/PL e at least 1x per month
}
for SIL CL 2/PL d at least 1x per year
NOTICE
The safety function should be checked after initial commissioning and each
time the plant/machine is changed. The safety functions may only be
checked by qualified personnel.
