Electrical installation
Wieland Electric GmbH | BA000966 | 07/2016 (Rev. C)
Additional information
• The samosPRO safety control fulfills the EMC provisions in accordance with basic techni-
cal standard EN 61000-6-2 for the industrial sector.
• Industrial safety devices from Wieland Electric are only suitable for local direct-current ap-
plications. If the device is to be used in supply voltage networks, e.g. in accordance with
IEC 61326-3-1, then additional safety measures must be implemented.
• Machines on which safety devices will be used must be installed and configured in ac-
cordance with the Lightning Protection Zone (LPZ) as per EN 62305-1. The required re-
sistance level can be achieved by using external safety devices. The Surge Protection De-
vices (SPD) used must fulfill requirements in accordance with EN 61643-11.
• The system must prevent "Common Mode" malfunctions in a frequency range of 0 Hz to
150 kHz in accordance with IEC 61000-4-16.
• In order to ensure complete EMC safety, the support rail must be connected to FE.
• The samosPRO system must be installed in a switchbox with at least protection class
IP 54.
• Carry out the electrical installation in accordance with EN 60204-1.
• The power supply of the devices must able to bridge a short-term power outage of 20 ms
in accordance with EN 60204-1.
• The power supply must meet the regulations for low-voltage with safe disconnection
(SELV, PELV) in accordance with EN 60664 and EN 50178 (equipping high-voltage sys-
tems with electronic equipment).
• You must connect all modules in the samosPRO system, the connected safety equipment
and the voltage supplies to the same 0-V DC connection (GND).
• If the RS-232 interface of the controller module is used as an alternative to a gateway, then
the maximum permissible cable length is 3 m.
• Avoid using ground loops between the USB interface GND and the A2 connection of the
COMPACT module, e.g. by using optocouplers.
• Depending on external loads, particularly with inductive loads, it may be necessary to use
additional external protective measures such as varistors or RC elements in order to pro-
tect the safety outputs. There are limits for the operation (see
Technical data [ch. 12, p.
70]
). Note that the response times may be delayed depending on the type of protective cir-
cuit.
• If a module is replaced, the correct terminal arrangement must be ensured, e.g. through
labeling or corresponding cable routing.
• If it is possible for someone to access the protective equipment from the rear (e.g. a safety
light curtain), then install the reset button such that it cannot be activated by a someone
who is in the hazardous area. In addition, the operator must have a complete overview of
the hazardous area when operating the reset button.
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