E& BENDER The Power in Electrical Safety®

Product description The signal converter SMI473 converts digital signals (operating and alarm messages) to serial output signals for the BMS bus. Its 12 digital inputs for potential-free contacts can be split into two groups as alarm or operating messages. Factory setting: 8 inputs for alarm messages and 4 inputs for operating messages. Function The potential-free contacts of the alarm relays of the respective monitoring devices are connected to the digital inputs. One LED indicator is assigned to each of the inputs “IN1” to “IN12”. The operating principle of the inputs can be set to N/O or N/C...

Wiring diagram 1 - "ON" LED: operation indicator 2 - "Alarm" LED: lights while an alarm is present at one of the alarm inputs. The LED flashes when a fault has occurred. 3 - DIP switch to set the device address (address range 3...63). 4 - "RS-485" LED: lights in case of activities on the BMS bus 5 - "IN1...IN12" LED: LED lights while an alarm or operating message (high) is present at the respective input. Ordering information GOOD OOOO 1 - A1, A2 Connection supply voltage Us. 2 - IN1...IN12 Digital inputs for operating or alarm messages. Common connection of the digital inputs to earth Alarm...

Technical data Contact data acc. to IEC 60947-5-1 Rated insulation voltage Rated impulse voltage/pollution degree Supply voltage Supply voltage Us Frequency range Us Operating range Us Power consumption Inputs Digital inputs Operating principle Voltage at the contacts Factory setting Galvanic separation Cable length Control of digital inputs 12 (IN1…IN12) Alarm/operating message can be parameterised via BMS bus N/C operation or N/O operation selectable via BMS bus 5V N/O operation no ≤ 30 m via potential-free contacts Indication LEDs Interface Interface/protocol RS-485/BMS Baud rate 9.6… 57.6...