Description
The Bridge Breaker® & Flow Promotion Device Controller
An advantage of Thayer’s BBC is the ability to finely control the ON/OFF time of the FADs. In particular, the BBC has the ability to adjust the time between activating the FADs proportional to a signal from an external device such as a feeder. This way, the FADs are activated only as often as is necessary. Using a FAD too often can cause problems with the material as well as being a tremendous waste of energy. The BBC can also tie (link) channels together, which allows cascading of the FADs to effectively and efficiently keep the material moving.
Each channel is capable of controlling up to two solenoid operated air valves, each of which can operate one or two Bridge Breaker® screens or other Flow Aid Devices. It is important to understand that a flow aid device doesn’t move material, gravity does. The function of a flow aid device, such as The Bridge Breaker® flow aid, is to break down the formation of “arches” that support the material bearing down from above. When the arches are broken, the material must have a place to go, otherwise serious over-compaction can result.
Controller Modes of Operation
| Microprocessor: | Dual Core Atmega 128@ 18.432 Mhz |
| Program Memory (flash): | 80 KB |
| Data Memory: | 24 KB Basic + 4 KB Ladder Logic |
| (EEPROM): | 4KB EEPROM |
| Basic Execution Speed: | 95,000/sec |
| Ladder Scan time: | 10 ms |
| Serial Ports for Communication: | 2 High-speed hardware independent serial ports Configurable Baud rates: 2400 bps to 230,000 bps |
| Digital Inputs: | 32 opto-isolated inputs 97.7 to 30 VDC) 17 TTL 5v input/output configuable 1 TTL 5V input |
| Digital Output: | 32 opto-isolated 24 volt DC TR outputs |
| Analog Inputs: | 8 channel 10-bit ADC’s Configurable voltage 0 to 5V or 0 to 10 V |
| Analog Outputs: | 6 channel 16-bit PWM or DAC Output voltage Range: 0 to 5V configurable frequencies for PWW: 35 hz to 1.15 Mhz |
| External Interrupts: | 4 Channels |
| High speed Counters: | 2 Channels 16-bit Counters |
| Power: | Required Power: 24 VDC Current Consumption w/ports unloaded: CT 1720 Currant Consumption @24V w/Backlight on: 170 mA @24V w/ Back Light off: 70 mA |
| RTC (real time clock): | Yes |
| Timers: | 1 user Configurable Timer Configurable Interval Units-10 ms |
| Data Memory Back-up: | yes, a 1 Fahrad rechargable super-conductor is included |
| Package: | Integrated Touch-screen Panel w/2 mm Headers and 2.5mm RCABLE Headers |
| Operating Temperature: | 0 degrees C to 70 degrees C |
| Size: | 7.36″ x 5.00″ x 1.71” |
| Viewing Area (Touch sensitive): | 4.5″ x 3.4″ (5.6″ diagonal) |
Thayer Products
