STBDDI3615K - Modicon STB Basic Digital Input Kit, 6 DI, 24 V DC

Product type: Basic Digital Input Kit  |  Range: Modicon STB  |  Inputs: 6 DI, 24 V DC

The STBDDI3615K is a basic digital input kit from the Modicon STB distributed I/O range. It is supplied as a complete assembly: the STBDDI3615 input module, the STBXBA1000 I/O base, and two alternative 6-terminal connectors, STBXTS1100 screw type and STBXTS2100 spring clamp. The module provides six discrete inputs at 24 V DC with positive logic and is intended for sensors and switches wired at the machine, on an STB island segment. The bare module STBDDI3615 does not include the base or the connectors; the K version does.

Each channel reads 15 to 30 V DC as state 1 and −3 to 5 V DC as state 0, drawing 4.5 mA. Permissible voltage is 30 V, with an absolute maximum of 56 V for 1.3 ms. Response time is 5.25 ms off-to-on and 5.75 ms on-to-off, with 5 ms input filtering to reject contact bounce and noise from adjacent drives. Insulation between the channels and the logic bus is 1500 V for 1 minute. Inputs are protected against reverse polarity and current limited by resistor; the power distribution module carries an integrated 5 A time-lag fuse.

The module is 18.4 mm wide on the rail, 125 mm high and 65.1 mm deep. It clips onto the STBXBA1000 base, and the assembled unit mounts on 35 x 7.5 mm or 35 x 15 mm symmetrical DIN rail. Cold swapping is supported, and hot swapping is supported when the island runs with a basic NIM. A green RDY LED shows module status and one green LED per channel, IN1 to IN6, shows the field state, so commissioning can be done without a programming terminal. Protection is IP20 to EN 61131-2 class 1, overvoltage category II and pollution degree 2.

Field power is distributed by the STBPDT3100 or STBPDT3105 power distribution module, which feeds 24 V DC to the sensors. The module itself draws 45 mA at 5 V DC from the logic bus, so the island current budget has to be checked against the NIM and the PDM before a segment is extended. Six terminals are used per connector, one per channel.

Operating temperature is 0 to 60 °C without derating, storage −40 to 85 °C, relative humidity 95 % at 60 °C without condensation, and operating altitude up to 2000 m. Vibration resistance is ±0.35 mm from 10 to 58 Hz and 3 gn from 58 to 150 Hz on 35 x 7.5 mm rail, or 5 gn on 35 x 15 mm rail; shock resistance is 30 gn for 11 ms. The module meets EN/IEC 61131-2 type 1 and carries CE marking, UL and CSA approval, and FM Class 1 Division 2 for hazardous locations.

Specifications