External Device Monitoring (Edm) And Reset; General - SICK RE 4000 Notice D'instructions

Operating Instructions
RE 4000
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WARNING
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WARNING
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WARNING
8 010 416/08-10-03
Electrical installation
must be opened and closed again, before the safety outputs can be
re-enabled. Until this occurs, the undelayed outputs 13/14, 23/24
and 33/34 will remain open.
3.4

External device monitoring (EDM) and reset

 If the operating mode "without external device monitoring (EDM)
and reset" is selected, a connection must be made between X1
and X2.
Static resetting (RESET)
In the wiring it is to be ensured that the (re-)closing or resetting
(RESET) of the protective device is not allowed to initiate any machine
movement or operation, if this can result in a dangerous state
(cf. EN 60204). In this case an additional measure must be provided,
e.g. the incorporation of the start button in the wiring (cf. Fig. 7).
Select the correct installation site for the reset button
The reset button is to be installed outside the hazardous area such
that it cannot be pressed from inside the hazardous area. The user
must also ensure that there is nobody in the hazardous area before
the reset button is pressed.
 The wiring for the external device monitoring (signal contacts on
the contact elements) is to be installed in the same control cabinet
in which the evaluation unit is fitted.
3.5

General

 The cables for the input and output signal are to be laid outside the
control cabinet in accordance with the control category to be
applied (EN 954-1), e.g. protected cable laying etc.
 Only copper with a temperature resistance of ≥ 55 °C is allowed to
be used for the cabling.
 The screws on the connection terminals must be tightened to a
torque of 1 Nm.
Interference suppressors can affect the release delay of the relay
contacts
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