MCR400

With the standard high speed built in serial data communications, the Constant Current Regulator (CCR) is able to communicate with most PC or PLC control systems.

To comply with statutory regulations, the CCR cabinet housing is divided into three areas, electronic control, low voltage area and main high voltage area. The electronic control area is situated behind a hinged panel at the front of the cabinet with no access to the other areas.

The constant current regulator MCR400 is supplied as a free standing unit, with or without castors. Requiring minimum floor space, it is available in ratings from 1.5kW to 30kW.

An alternative shelf mounting version MCR200 is also available in ratings from 1.5kW to 7.5kW. This version is also stackable.

Built within a proven robust welded steel cabinet the CCR is self-contained with all facilities and can include up to 5 circuit selectors integral to the floor mounting cabinet.

The smaller shelf mounting unit is prewired for connection to an external circuit selector unit.

For ease of maintenance, all modules within the CCR are easily accessible for servicing or replacement without the use of special tools.

Standard 6.6 Amp and 12 Amp series current versions available for all ratings.

All units use natural air convection cooling, no fans.

Standard Features 

• Microprocessor control with comprehensive status monitoring.
• Continuous software integrity checking for added reliability.
• Simple set up using menu and units front panel push buttons
• Matching taps on output transformer for improved primary power factor and efficiency.
• 3, 5 or 7 selectable brightness steps.
• Remote control selectable between conventional 24/48V DC Multi-wire or RS485 serial link communications using Modbus/Jbus as standard.
• All monitored functions available via the serial link and via volt free relay contacts for use in a multi-wire installation as standard

Large LCD display for simultaneous display of all local status information: –

• Series current displayed with inband brightness percentage
• Brightness step selected (local & remote)
• Brightness out of band
• Power fail
• Over current trip
• Open circuit trip
• Lamp failure 2 stage (if option fitted)
• VA drop error (if option fitted)
• 2 stage earth leakage detector with adjustable alarm levels (if option fitted)
• Hours run counter as standard
• Volt free n/o relay contact
• Current flowing remote indication
• Power on remote indication
• Local/standby selected remote indication
• Over current remote indication
• Open circuit remote indication
• Earth leakage stage 1 & 2 remote indication (option)
• Failed lamp detector stage 1 & 2 remote indication (option)
• VA drop remote indication
  (option)
• Brightness out of band

Options

• Failed lamp detector (2 stage)
• Earth Leakage detector (2 stage)
• Brightness in-band relays
• Lightning arrestors
• 100% current flow elapsed time counter
• VA drop detector
• 48V DC internal power supply for remote control
• Circuit selectors (2 alternate or 2- 5 simultaneous)
• Primary circuit current monitoring (4-20mA output)
• Castors
• Vermin proofing
• MCR405 designed to comply with PSA (RAF) requirements

Controls & Indicators

The constant current regulators controls and indicators have been kept to a minimum so that setting up is quick and simple. All parameters and functions are preloaded in software which can be adjusted, enabled or disabled by using the front panel push buttons. Brightness settings can also be adjusted manually from the push buttons on the units front panel.

• Main Input Isolator
• Power on indicator
• 3 way rotary switch (local – standby – remote)
• Adjust current push buttons
• Local brightness stage 1 – 7 (selected by + & – pushbuttons)
• LCD display
• Hours run counter
• Local circuit select push buttons (option)
• Circuit select LED Indicators (option)