GEA Grasso Manual page 108

GRASSO SYSTEM CONTROL
Grasso
Refrigeration Division
The KL3202 and KL3204 analog input terminals allow resistance sensors to be connected directly. The Bus
Terminal's circuitry can operate the sensors using 2-wire connection techniques. Linearisation over the full
temperature range is realised with the aid of a microprocessor. The temperature range can be selected freely.
The Bus Terminal's standard settings are: Resolution 0.1 °C in the temperature range of PT100 sensors. The error
LEDs indicate sensor faults (e.g. a broken wire). The KL3202 version combines 2 channels and the KL3204 version
combines 4 channels in one housing.
Figure 5.11: Analog input terminal wih 2 and 4 channels (PT100-2L)
5.4.5 Bus end terminal
At the end of the periphery terminals a bus end terminal (KL9010) must be mounted, otherwise the periphery
bus coupler detects an error and no data will be send to the PLC.
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