More Enhanced Features

MX250 series Microprocessor Controller

LEDs are used in a recognizable line configuration for continuous monitoring of switch position. A new LCD display shows source availability, exercise time delay operation and system source condition. A new simplified adjustment is featured for voltage, frequency and time delay settings.

The control operates off a close differential 3 phase under-voltage sensing of source 1, factory standard setting 90% pickup, 80% dropout; under- frequency sensing of source 1 factory setting 95% pickup; voltage and frequency sensing of source 2, factory standard setting 90% pickup voltage, 95% pickup frequency. All factory settings are operator adjustable (see table below).

A test is standard (fast test/load/no load) to simulate source 1 failure - automatically bypassed should source 2 fail.

•Available in ALL transfer modes:

~Open, Delayed & Bypass

~Closed (with newly integrated transition control)

•User-friendly programmable engine exerciser, used for the engine generator with or without load, at ANY interval in a one-year period

•Operating voltages available in a single controller for most domestic and international applications

•Real-time display of ATS status, including active timer(s)

•Multiple levels of user-defined password protection

•Serial communications allowing connectivity with other ATS's, paralleling switchgear, and SCADA systems

•Time-tested synchronous logic automatically measures phase angle and frequency allowing disturbance-free transfer

•Unsurpassed statistical ATS/System monitoring available in real-time

•T3/W3 elevator pre-signal. Automatically bypassed if the selected source fails, minimizing time an elevator is without power

•Universal Motor Disconnect (UMD) sends

a pre-signal, post-signal or both to any motor control center. Not bypassed in an outage, the UMD ensures safety in the event of a single phase loss

•Voltage unbalance detection standard

•Extensive 2/5/10 Warranty

Performance Features

•UL, CSA and IEC listed

•Ringing wave immunity per IEEE 472 (ANSI C37.90A)

•Condusted and Radiated Emissions per EN55022 Class B (CISPR 11) (Exceeds EN55011 & MILSTD 461 Class 3)

•ESD Immunity test per EN61000-4-2 (Level 4)

•Radiated RF, electromagnetic field immunity test per EN61000-4-3 (ENV50140) 10v/m

•Electrical fast transient/burst immunity test for EN61000-4-4

•Surge immunity test per EN61000-4-5 IEEE C62.41 (1.2 x 50ms, 5 & 8 kV)

•Conducted immunity test per EN61000-4-6 (ENV50141)

•Voltage dips and interruption immunity EN61000-4-11

Technical Benefits

•Separate line voltage components for controller isolation

•Inputs optoisolated for high electrical immunity to transients and noise

•Built-in electrical operator protection

•Simplified maintenance – major components are easily replaceable

•Close differential under-voltage sensing of the normal source

•Voltage and frequency sensing of the emergency source (all settings are adjustable)

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