Pilz PZE X4V 0,5/24VDC 4n/o fix - Manual (Page 6)

PZE X4V
Operating Manual PZE X4V
1003200­EN­08 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.
CH.
A2 47 48
38 28 18
Y2 A1 Y1
37 17 27
48 38 18 28
37 17 27 47
CH CH CH CH CH CH CH . .. . . . .
CH CH CH CH CH CH CH . .. . . . .
A2 A2 A2 A2 A2 A2 A2 47 47 47 47 47 47 47 48 48 48 48 48 48 48
38 38 38 38 38 38 38 28 28 28 28 28 28 28 18 18 18 18 18 18 18
Y2 Y2 Y2 Y2 Y2 Y2 Y2 A1 A1 A1 A1 A1 A1 A1 Y1 Y1 Y1 Y1 Y1 Y1 Y1
37 37 37 37 37 37 37 17 17 17 17 17 17 17 27 27 27 27 27 27 27
48 48 48 48 48 48 48 38 38 38 38 38 38 38 18 18 18 18 18 18 18 28 28 28 28 28 28 28
37 37 37 37 37 37 37 17 17 17 17 17 17 17 27 27 27 27 27 27 27 47 47 47 47 47 47 47
PZE X4V 0,5s PZE X4V 0,5s PZE X4V 0,5s PZE X4V 0,5s PZE X4V 0,5s PZE X4V 0,5s PZE X4V 0,5s
1 1 1 1 1 1 1
2 2 2 2 2 2 2
*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).