This document describes the SmartPID2000 module (PID module for short) in terms of its working principles, electrical connections, parameter configuration, maintenance, and troubleshooting. Therefore, the latest document issue contains all updates made in previous issues. Updated A Changing the RS485 Address。 This issue is the fourth official release. 1 Commissioning over the WebUI. Before installing and operating an SACU, read this manual carefully to get familiar with the. SACU2000: Access product manuals, HedEx documents, product images and visio stencils. Smart array controller SmartACU2000D-D-01 D: ≤ 800 V three-phase AC input • 01: one MBUS route and one SmartPID2000 (referred to as PID module hereinafter) • 03: two MBUS routes and two PID modules SmartACU2000D -D 03 2 Cabinet Dimensions Mounting Bracket Dimensions (1) PID cabinet door (2) Main.