CBI 20 | ABB CBI20 Binary Input Module

Features / Applications

• 32 binary inputs divided into two supply groups, each with 16 inputs
• Signal recording with 1 ms time resolution
• Monitoring of module
• Central galvanic isolation of system inputs
• Group-set filter time
• Redundancy capable

Suitable for interrogating the following sensors/signals:

48 V Contacts:

• Max. 32 NC contacts
• Max. 32 NO contacts
• Max. 32 2-conductor changeover contacts
• Max. 16 changeover contacts

24 V Contacts:

• Max. 32 NC contacts
• Max. 32 NO contacts
• Max. 32 2-conductor changeover contacts
• Max. 16 changeover contacts

Initiators:

• Max. 16 3-wire initiators
• Max. 32 NAMUR initiators (per DIN 19234)

Standard Binary Signals:

• Max. 32, with levels according to DIN 19240

Technical Data

Contact Interrogation (48 V)

• Supply Voltage: 43–50 V (Typ. 48 V), up to 60 V external
• Input Resistance: 15.9 kΩ
• Rated Input Current: 3 mA
• Signal Input Level:
  • High: 36–60 V
  • Low (non-redundant): 9.1–15.2 V
  • Low (redundant): 5.2–8.7 V
  • Threshold: 21 V

Contact Interrogation (24 V)

• Supply Voltage: 20.4–28.8 V (Typ. 24 V)
• Input Resistance: 5.8 kΩ
• Rated Input Current: 4.2 mA
• Signal Input Level:
  • High: 20.4–28.8 V
  • Low (non-redundant): 3.9–5 V
  • Low (redundant): 2.1–2.7 V
  • Threshold: 8.4 V

3-/4-Wire Proximity Switch (24 V)

• Supply Voltage: 20.4–28.8 V
• Input Resistance: 5.8 kΩ
• Rated Input Current: 4.2 mA
• Signal Input Level:
  • High: 13–35 V
  • Low: –3 to +5 V (neg. voltages only for IE ≤ 15 mA)
  • Threshold: 8.5 V

NAMUR Initiators (8.2 V, DIN 19234)

• Supply Voltage: 8–9 V (Typ. 8.2 V)
• Input Resistance: 1 kΩ
• Rated Input Current: 3 mA
• Signal Input Level:
  • High: 2.2–6.5 mA
  • Low: 0.4–1 mA
  • Threshold: 1.6 mA
  • Breaking Threshold: 0.2 mA

General Module-Related Technical Data

• Galvanic Separation: Central
• Measuring Voltage: 50 Veff (VDE 0110)
• Voltage Testing: 500 Veff (channels to system)
• Max Input Voltage:
  • 60 V DC (for 48 V contacts)
  • 30 VAC (for 3-/4-wire initiators or 24 V contacts)
  • 10 V DC (for NAMUR initiators)
• Ambient Temperature: 0–50°C (module sub-rack ventilation)

Voltage Supply & Power Loss

• Supply Voltage: 20–33 V
• Fuse Protection: G-fusible element 5×20 mm, 3.15 A slow-blow (T 3.15 H)
• Permissible Overvoltages:
  • 35 V for 1 s
  • 45 V for 10 ms

Power Loss by Input Type (Coincidence factor = 0.75)

Ordering Information

Catalog Number

• 72130-4-0788730 – CBI 20 – Binary Input Module

Additional Order Information

• Former System Packet: BA-No. 601

Necessary Accessories