Our Team Expertly Repairs Magnetek Impulse G and VG Series 2 AC Crane Inverter

Precision Zone specializes in Magnetek product repairs servicing a wide range of AC Crane Inverters such as Magnetek Impulse G+/VG+ Series 2.

The Impulse G+/VG+ Series 2 crane inverter is the second generation of high-performance adjustable frequency motor control. A two line LCD display makes adjustments and modifications easily made using the built-in digital operator. Hardware and software have been specifically designed for the application to crane, hoist and monorail systems.

When assessing the functionality of a drive, our engineering team typically conducts a four-step check:

  • Visual Overview Check
  • Static Test
  • Checks Under Power
  • Alarm Codes Verification

This overview is Precision Zone’s basic troubleshooting process. Once our repair team starts on the job we use specialized, customized test fixtures, Huntron tracker, signal generator, oscilloscope, milli and mega ohm meters and other necessary tools to assure quality repair. Most importantly, every repair is fully tested in custom-built simulators under load to replicate real-life working environment. Precision Zone goes as far as using heat chamber and overnight dynamic testing to guarantee performance of the repaired product when it comes back to the customer.

REPAIR PROCESS FOR IMPULSE G+/VG+ SERIES 2 AC CRANE INVERTER

Visual Overview Check

When conducting a visual check, the technician inspects the drive for any mechanical damage to the drive and print circuit boards. Then the team proceeds to verify connections are tight and correct inside the drive and there are no loose screws, wires or particles. Additionally, we look for any burn marks anywhere on the components or chassis. During the visual inspection technical team notes excessive dirt on cooling components and records clogged heatsink.

Static Test Basic

Precision Zone repair technicians use digital multimeter with diode testing capabilities and resistance measurement to conduct a static test. In the instance of Diode testing, our team is looking to check input and output modules.

Using your digital multimeter check the DC buss and make sure the DC buss has been discharged.

Input Modules Testing

Multimeter Positive Lead Negative Side of the DC Bus
Multimeter Negative Lead L1 L2 L3
Diode Check Approximately 0.2-1.0 V for each phase
Multimeter Positive Lead L1 L2 L3
Multimeter Negative Lead Positive Side of the DC Buss
Diode Check Approximately 0.2-1.0 V for each phase

Output Modules Testing

Multimeter Positive Lead U V W
Multimeter Negative Lead Positive Side of the DC Buss
Diode Check Approximately 0.2-1.0 V for each phase
Multimeter Positive Lead Negative Side of the DC Buss
Multimeter Negative Lead U V W
Diode Check Approximately 0.2-1.0 V for each phase

We verify capacitor value using capacitor meter and examine functionality of circuit breakers and contactors in the drive.

Alarm Codes Troubleshooting

The alarms on the drive are displayed through digital operator located on the front of the inverter. The codes displayed are:

Alarm Code Code Type
Gf Ground Fault
Oc Overcurrent
ol1 and ol2 Overload
RR Braking Transistor Shorted
ERR Control Board Hardware Failure
UV Undervoltage
OV Overvoltage
OH and OH2 Overheat
OS Overspeed Detection
OPE Parameter Alarms
PF and PH Phase Loss or Open Phases

The majority of these alarms can be triggered if there is a fault in the control circuit.





Recently Repaired Products

Magnetek 4080-FVG+ image 4080-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Power Section/Board, Leaky Capacitors (Open, Corroded Traces), Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, No Display
Input Voltage: 460V
Rated Output Current: 80A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4008-AFG+ image 4008-AFG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Capacitor(s), Bad Cooling Fans, Bad Gate Section/Board, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 8A
Series: Electromotive Impulse G+ Series 2

Magnetek 4014-AFG+ image 4014-AFG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Capacitor(s), Bad Control Section/Board, Bad Cooling Fans, Bad Fuse, Bad Gate Section/Board, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 14A
Series: Electromotive Impulse G+ Series 2

Magnetek 4041-FVG+ image 4041-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Capacitor(s), Bad Control Section/Board, Bad Cooling Fans, Bad Gate Section/Board, Bad Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 41A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4021-FVG+ image 4021-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces), No Display
Input Voltage: 460V
Rated Output Current: 21A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4028-AFG+ image 4028-AFG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Capacitor(s), Bad Control Section/Board, Bad Cooling Fans, Bad Gate Section/Board, Bad Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 28A
Series: Electromotive Impulse G+ Series 2

Magnetek 4096-FVG+ image 4096-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Output Transistors/SCRs, Bad Power Section/Board
Input Voltage: 460V
Rated Output Current: 96A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4021-AFG+ image 4021-AFG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Capacitor(s), Bad Cooling Fans, Bad Power Section/Board, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 21A
Series: Electromotive Impulse G+ Series 2

Magnetek 4128-FVG+ image 4128-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Leaky Capacitors (Open, Corroded Traces), Bad Control Section/Board, Bad Capacitor(s), Excessive Dirt/Debris, Physical Damage to the Drive
Input Voltage: 460V
Rated Output Current: 128A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4005-AFG+ image 4005-AFG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Control Section/Board, Bad Fuse, Bad Gate Section/Board, Bad Output Transistors/SCRs, Bad Power Section/Board
Input Voltage: 460V
Rated Output Current: 5A
Series: Electromotive Impulse G+ Series 2

Magnetek 4041-AFG+ image 4041-AFG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces), Bad Capacitor(s), Bad Cooling Fans
Input Voltage: 460V
Rated Output Current: 41A
Series: Electromotive Impulse G+ Series 2

Magnetek 4052-FVG+ image 4052-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Cooling Fans, Bad Fuse, Bad Output Transistors/SCRs, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 52A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4065-FVG+ image 4065-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Capacitor(s), Bad Output Transistors/SCRs, Leaky Capacitors (Open, Corroded Traces), Bad Fuse
Input Voltage: 460V
Rated Output Current: 65A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4302-FVG+ image 4302-FVG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Gate Section/Board, Bad Input Diodes/SCRs, Bad Wires (Burnt), Blown Input Power Components, Excessive Dirt/Debris, Physical Damage to the Drive
Input Voltage: 460V
Rated Output Current: 302A
Series: Electromotive Impulse VG+ Series 2

Magnetek 4052-AFG+ image 4052-AFG+ is an
Inverter-Crane manufactured by Magnetek
Discovered issues: Bad Fuse, Bad Gate Section/Board, Bad Power Section/Board
Input Voltage: 460V
Rated Output Current: 52A
Series: Electromotive Impulse G+ Series 2