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.

More Enhanced Features

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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3G Green Green Globe ZTS Series MX250 series Microprocessor Controller, More Enhanced Features, Technical Benefits