Optimizer™ Magnet Control
For All Magnets
Retrofits & New Installations
Patent Pending

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Solid-State IGBT Magnet Control

Infinitely variable current control for all lifting magnets. Magnets operate at the lowest possible temperature

Optimize Every Magnet

Adjustable current and times for all operating modes to maximize performance, optimize production and prolong magnet life

Operating Modes
with existing 2 or 3 position operator controls

• LIFT – 100% voltage applied in less than 50ms.
• HOLD – Lift Current automatically reduced to optimized Holding Current.
• DRIBBLE – Magnet current slowly reduced.
• DROP – Instant discharge through IGBT Discharge Circuit—No voltage spikes.
• CLEAN – Instant reversal of the magnet current—No voltage spikes.

Improve Production—Run Cooler!

• Reduced drop time.
• Reduced cleaning time.
• Fewer magnet change-outs.
• Adjustable dribble time.
• Improved lift capacity throughout the shift.

Energy Efficient

• Reduced power consumption.
• Reduced magnet temperature.
• Voltage spikes eliminated — Protects the entire crane electrical system.

Additional Benefits

• No contactors.
• Less maintenance.
• Use existing magnet or new.
• Use existing connections.
• Solid-state construction — No moving parts.
• Use existing DC power supply.
• Use existing operator controls or new.
• Eliminates need for dual voltage magnet controls.

Options

• Continuous measurement of magnet core-temperature.
• LCD operator display.
   – Continuous updating of operating status.
   – Displays fault messages.
• RS485 communications for remote monitoring or automation.
• Magnet over-temperature alarm.

Specifications

• Voltage
   – 230 VDC Nominal
   – 300 VDC Maximum
   – 120 VDC Minimum
• Current Range
   – No. M200: Up to 200 Amps Maximum
   – No. M350: Up to 350 Amps Maximum
• Logic Type – Microprocessor
• Ambient Temperature Range – +60°C Maximum to -10°C Minimum.
• Diagnostics & Parameter Adjustment – Data Terminal, Part No. A62499
• User Adjustable Parameters
   – Lift Current
   – Lift Time (time before reducing Lift Current to Holding Current)
   – Holding Current
   – Magnet Discharge Voltage
   – Dribble Level
   – Dribble Time
   – Cleaning Current
   – Cleaning Time
  

Ordering Information

Examples:

M350-ED11-05
This is a 350 amp magnet control in an enclosure with a display and using EM-5 software.

M200-11T1-04
This is a 200 amp magnet control core kit with temperature measuring using EM-4 software.

Notes:

1. Enclosed controllers are pre-installed in a NEMA 12 enclosure ready to operate. Disconnect is not provided. If the Display option has been selected the operator display will be mounted on the door of the enclosure. Core Kit includes magnet control, line inductor, charge-up resistor, capacitor bank charge indicator, and operator input cable. Charge-up resistor is to be installed in parallel with the contacts of a customer supplied ‘Line’ contactor.
   
   
2. This option uses a software algorithm to determine the magnet temperature.
   
   
3. Provides software to communicate with PLC’s or other control systems.
   
   
4. EPROM number to be assigned by Cableform.
   
   
5. Cableform can provide custom software for most applications. Contact Cableform engineering for further details.