Pilz PZE X4VP 0,5/24VDC 4n/o fix - Manual (Page 6)

PZE X4VP
Operating Manual PZE X4VP
1003202­EN­08 6
} Earth fault in the feedback loop:
Detected, depending on the base unit that is used.
} Earth fault in the input circuit:
The output relays de­energise and the safety contacts open.
Block diagram/terminal configuration
*
=
=
Power
K1
Input
A1 A2 17 27 37 Y1
18 28 38 Y2
47
48
K2
CH.2
CH.1
PNOZ X4VP 3s
P1
17 A1
Y1 Y2 47
28 18 A2
P1
P2
27
18
17
38
37 27
28
37
47
48
38
48
PZE X4VP
*Insulation between the non­marked area and the relay contacts: Basic insulation (over­
voltage category III), Protective separation (overvoltage category II)
Function description
The contact expansion module is an add­on device with delay­on de­energisation, and it is
used to expand a safety circuit. The contact expansion module is driven by a base unit (e.
g. emergency stop relay).
} Functional procedure after closing the safety contacts of the base unit:
– The supply voltage is present at the input (A1) of the contact expansion module.
– Close the safety contacts 17­18, 27­28, 37­38 and 47­48.
– The LEDs "CH. 1" and "CH. 2" are lit.
} Functional procedure after opening the safety contacts of the base unit:
– There is not supply voltage at input (A1) of the contact expansion module.
– Safety contacts 17­18, 27­28, 37­38 and 47­48 open after the delay time.
– The LEDs "CH. 1" and "CH. 2" go out.
Installation
} The unit should be installed in a control cabinet with a protection type of at least IP54.
} Use the notch on the rear of the unit to attach it to a DIN rail.
} Ensure the unit is mounted securely on a vertical DIN rail (35 mm) by using a fixing ele­
ment (e.g. retaining bracket or an end angle).