ABB 3BSE018799R1 Annunciator Keyboard

The 3BSE018799R1 provides operator input for ABB control systems. This keyboard features dedicated annunciator and alarm acknowledgment keys. It connects directly to ABB PLCs and DCS panels.

Key Technical Specifications

Parameter	Value
Number of Keys	32 tactile membrane keys
Key Arrangement	6 rows x 6 columns
Key Life	1 million actuations minimum
Actuation Force	180 g ±20 g
Annunciator Keys	8 programmable function keys
Front Protection	IP54 (dust and splash)
Backlight	LED, 24V DC, amber
Interface	24-pin ribbon cable (0.5m)
Keyboard Dimensions	21.0 cm x 11.0 cm x 2.5 cm
Weight	0.35 kg (0.77 lbs)
Component Count	6 (passive matrix)
Energy Storage	None (passive device)
Operating Temperature	-10°C to 55°C

Physical Dimensions and Construction

This keyboard measures 21.0 cm in length and 11.0 cm in width. Its total thickness reaches 2.5 cm including the mounting flange. 3BSE018799R1 weighs 0.35 kg for panel mounting. The polyester membrane surface resists oils, dust, and mild chemicals.

Moreover, a sealed aluminum backing plate provides mechanical rigidity. This plate also acts as an EMI shield for sensitive electronics. You can clean the front surface with mild detergents.

Key Layout and Annunciator Functions

The 32 keys include 8 annunciator keys and 24 alphanumeric keys. Each annunciator key has a built-in amber LED indicator. These LEDs flash during alarm conditions and stay steady when acknowledged. The tactile membrane provides positive feedback upon each key press.

Electrical Interface and Connection

A 24-pin ribbon cable terminates in an IDC connector. This cable length measures 0.5 meters for flexible panel placement. The keyboard uses a passive matrix scanning design for reliability. An external driver module handles key decoding and LED control.

Alarm and Annunciation Features

The 8 programmable annunciator keys connect to PLC alarm inputs. Each key corresponds to a specific zone or process area. Operators acknowledge alarms by pressing the associated key. The amber backlighting helps locate keys in dim control rooms.

Typical Application Scenarios

You can deploy 3BSE018799R1 in ABB Advant and 800xA operator workstations. It also works well for industrial control desks and panel-mounted HMI stations. This keyboard acknowledges alarms, navigates menus, and enters setpoints. Its sealed design suits power plants and chemical facilities.