Download MC Features Continued - Master Control Systems, Inc.

Pride
Workmanship
Pride
in in
Workmanship
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MASTER Fire Pump Controllers
Are Engineered to the Highest
Standards in the Industry
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Instant-On circuitry
Restart time delay
Modular Mother board
All printed circuits are
enclosed in a steel card cage
Diagnostic Plug and LEDs
Triple redundant control
transformers
35% voltage drop
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Features That Make MC Series Fire
Pump Controllers a Smart Choice

No field Programming
 LED’s and SPDT contacts for visual
and remote monitoring of alarms
 Vertically mounted ISO SW and CB
 Digital display readout
 Single phase protection
 Independent pressure and alarm
recorder
 DC Shunt trip
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MC Features Continued
Restart Time Delay
Controllers utilize a restart timer to delay the
instantaneous re-start of
the controller. This allows
electromagnetic fields in
the motor to decay.
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MC Features Continued
Control Chassis
Control chassis has
Diagnostic LEDs, latched
connectors and a steel card
cage for mechanical
protection of printed circuit
boards
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MC Features Continued
Triple Redundant Control Transformers
Triple Redundant
control transformers
privide full control
power even if a
phase is lost
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MC Features Continued
35% Voltage Drop
Controllers will
continue to operate if
the voltage drops by as
much as 35% of rated
voltage. This can be
critical when starting
the fire pump on
emergency power.
Model MCP
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MC Features Continued
Isolation Switch and Circuit Breaker
Vertically mounted
Isolation Switch and
Circuit Breaker with
Separate operating
handles and
interlock.
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MC Features Continued
Door Display
Through the door digital
display reads out
voltages, phase currents
and pressure
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MC Features Continued
DR2500 Paperless Pressure and Alarm Recorder
Independent digital
recorder saves the latest
2500 pressure points and
350 alarm points into a
separate permanent
memory buffers
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MC Features Continued
DR2500 Paperless Pressure and Alarm Recorder
The DR2500 is
specifically designed
to communicate
through an RS-232
serial port directly to
a lap-top computer or
a network server
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MC Features Continued
DR2500 Paperless Pressure and Alarm Recorder
Data may be
downloaded by using
any terminal emulator
program such as
Terminal, Hyperterm,
etc.
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MC Features Continued
DR2500 Paperless Pressure and Alarm Recorder
DR2500 control menu
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MC Features Continued
DR2500 Paperless Pressure and Alarm Recorder
Retrieved
data
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MC Features Continued
DC Shunt Trip
Controllers use a DC
shunt trip coil
powered from all 3
phases. The locked
rotor protector will
still operate under a
single phase
condition.
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Motor Starting Types

Across-the-line
 Part-winding
 Primary reactor
 Wye-delta (open)
 Wye-delta (closed)
 Soft Start
 Autotransormer
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Motor Starting Types Continued
Reactor Comparison

Reactor uses a standard electric motor
 Reduces complexity of field wiring - wired
same as across the line
 Low Power Factor makes the reactor ideal
for gen-set applications
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Motor Starting Types Continued
Fire Pump Starting Type Characteristics
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Motor Starting Types Continued
Leading Phase Monitor™

Used on Wye-Delta (open) controllers
 Reduces open circuit transient to closed
circuit levels
 Allows you to use Wye-Delta (open) as an
option to Wye-Delta (closed)
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Motor Starting Types Continued
Leading Phase Monitor™
Wye-Delta Transition Transients (typical)
Closing the Delta contactor
(run) with closing voltage
leading the Wye contactor
(start) gives you closing
currents about the same as
closed transition controllers
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Thank You!
MASTER CONTROL SYSTEMS
PO Box 276 – 910 North Shore Dr
Lake Bluff, IL 60044
847-295-1010
www.mastercontrols.com
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