Introduction - Sinclair SCMI-01.4 User Manual

SCMI-01.4 CONTROL MODULE – DESCRIPTION AND
INSTRUCTION MANUAL

1. INTRODUCTION

The SCMI-01.4 control module is designed for controlling ASGE–xxBI and ASGE-xxBI-3
outdoor inverter units with R32 refrigerant. This module can operate in the autonomous
pressure (evaporation temperature) control mode, autonomous temperature control mode for
cooling or heating, or as a slave unit. In the slave mode, the module serves as a converter
between the control system and outdoor unit; it controls the outdoor unit compressor
performance via a serial line according to voltage 0-10V from an external control system. The
control module is placed in a standard box for mounting on DIN rail. The front panel has LCD
with 2x8 characters and four LED indicators. The green LED indicates the power-on state
and three yellow LEDs indicate the switching state of the module relays. Setting up the
module and downloading the stored data is done using four control keys and a USB
connector. The module is powered by AC voltage of 230V/50Hz. To control the outdoor unit,
the control module is equipped with 9600bps serial communication channel complemented
with power supply circuits to power the outdoor unit communication circuits. To control the
other devices, the module contains three relays with selectable features and a 230V/2A NO
(normally open) contact. In addition, this module has two digital TTL inputs, one voltage input
0-10V/100kΩ, one current input 4-20mA and two inputs for 10kΩ resistance thermometers
(ß=3435).
Fig. 1. SCMI-01.4 control module
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