Siemens SIMOCODE pro System Manual page 679

EMERGENCY STOP
EMERGENCY-STOP command device
EMERGENCY-STOP device
Enabling circuit
European norm EXplosion safe (EEx)
Expansion modules
Factory settings
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03
Stop in an emergency according EN 418 (ISO 13850).
Operation intended to stop a dangerous process or
movement as quickly as possible in an emergency.
Contact block (EMERGENCY STOP mushroom pushbutton
according to EN 418 (ISO 13850), cable-operated switch with
positive opening contacts according to EN 60204-1) that
causes the process, machine or plant to be stopped when
actuated in hazardous situations. This must have positively-
opening contacts, be easy to reach and be tamper-proof.
A protective device for initiating the appropriate procedure in
an emergency according to EN 418 (ISO 13850) and
EN 60204-1
An enabling circuit generates a safety-oriented output signal.
To the outside enabling circuits function as NO contacts
(from the functional perspective safety-oriented opening is
always considered). A single enabling circuit that is designed
to be internally redundant in the safety relay (two-channel)
can be implemented for Category 3/4 according to EN_954-
1 (EN ISO 13849-1:2006).
European norm EXplosion safe: Specifies the protection
classes for categorizing motors for use in hazardous areas.
Expansion modules are intended as optional additions for the
SIMOCODE pro V device series. The following expansion
modules are available:
• Digital module (DM)
• Analog module (AM)
• Earth-fault module (EM)
• Temperature module (TM).
All expansion modules have the same design with an
enclosure width of 22.5 mm. They are equipped with 2
system interfaces (incoming/outgoing) and removable
terminals.
The factory settings are used to reset all parameters of a
device to the default settings to which they were set at the
factory.
The factory settings can be restored using the "TEST/RESET"
button on the basic unit or via the SIMOCODE ES software.
Glossary
Glossary-7