SNC 021
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Catalog excerpts

S-DIAS Safety SNC Incremental Encoder Module Electrical Requirements Supply voltage for the encoder supply Current consumption of supply voltage for the encoder supply with 2 Incremental encoder inputs Voltage supply from Safety bus Current consumption on the Safety bus (+12 V supply) Voltage supply from S-DIAS bus The S-DIAS Safety SNC incremental encoder module SNC 021 provides the values of two incremental encoders, the Safety CPU as well as the non-Safe CPU (standard PLC). Current consumption on the S-DIAS bus (+24 V supply) Article Number and Miscellaneous Article number The two-channel safety function “monitors” the increments in the incremental encoder interfaces and processes the so-called Safety core in two micro controllers with cross-communication. Dimensions Standard 20-896-021 12.5 x 104.2 x 72 mm (W x H x D) Two-channel application: EN 62061 SIL 3 EN ISO 13849-1 PL e/Cat. 4 One-channel application: EN 62061 SIL 3 EN ISO 13849-1 PL d/Cat. 2 UL 508 (E247993) CE, cULus, TÜV Austria EG type-tested Environmental Conditions Storage temperature Environmental temperature I-encoder Specifications Number of channels Encoder Input frequency Counter frequency Signal analysis Encoder resolution Encoder power supply Status LED I-encoder current consumption 2 Incremental encoder with RS422 Interface with null position trace. Installation altitude above sea level 0-95 %, non-condensing 0-2000 m without derating > 2000 m with derating of the maximum environmental temperature by 0.5 °C per 100 m Operating conditions EMC resistance maximum 12 bits +5 V supply, short-circuit proof with monitoring function and current measurement (+ 5 V is generated from +24 V at X3) pollution degree 2 in accordance with 61000-6-7:2015 (Generic standards - Immunity requirements for equipment intended to perform functions in safety-related systems (functional safety) at industrial locations) in accordance with EN 61000-6-2:2007 (industrial area) (increased requirements in accordance with IEC 62061) in accordance with EN 61000-6-4:2007 (industrial area) Vibration resistance Shock resistance Protection type 3.5 mm from 5-8.4 Hz 1 g from 8.4-150 Hz 5 g from 8 Hz-150 Hz

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