Honeywell FC-TSAI-1620M Field termination assembly module

Honeywell FC-TSAI-1620M Field termination assembly module TSAI-1620m is the interface between field components (such as sensors) and the safe high-density analog input moduleSAI-1620m in Safety Manager. It can be used for interfacing signals from Class I,Division 2 Hazardous Locations.

The TSAI-1620m module has sixteen analog input channels, which may be used for both safety-related and non-safety-related applications. These sixteen channels (separated into two groups of eight channels with common 0 V) are connected via a system interconnection cable (SICC-0001/Lx), which is plugged into the SIC connector on the FTA module.

The FTA module has a universal snap-in provision for standard DIN EN rails, and screw terminals for connection of power supply, ground and field wiring Main functions

TSAI-1620m module has three main functions:

• Linear direct conversion of 0(4)—20 mA DC field signals to the signal levels of the safe high-density analog input module SAI-1620m

• Power supply distribution to each transmitter with voltage-current limitation in compliance with Hazardous Area Class I Division 2

• Enabling monitoring of the external power connected to the FTA module Linear direct conversion

The input circuit of each channel consists of a high-precision resistor, which converts the input current (0—20 mA) to the input voltage for the high-density analog input module SAI-1620m. Power is supplied to the analog transmitter via a series resistor. Each analog signal has its own terminal for the field cable shield.

Figure 322 on page 536 shows the schematic diagram for connecting a transmitter(active and passive).External power If all inputs are active, no external power is required.For loops, which contain passive transmitters, analog process data is only available if the supply voltage to the electronics is guaranteed. The high-density analog input concept (using TSAI 1620m / TPSU-2430 modules) offers full monitoring of power that is provided externally. If DC/DC converter modules TPSU-2430 are used, even red.