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
4065-FVG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Gate Section/Board, Bad Output Transistors/SCRs, Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 65A
Series: Electromotive Impulse VG+ Series 2
4080-FVG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Control Section/Board
Input Voltage: 460V
Rated Output Current: 80A
Series: Electromotive Impulse VG+ Series 2
4014-AFG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Missing parts/components
Input Voltage: 460V
Rated Output Current: 14A
Series: Electromotive Impulse G+ Series 2
4021-AFG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Control Section/Board, Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 21A
Series: Electromotive Impulse G+ Series 2
4028-AFG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Output Transistors/SCRs, Bad Cooling Fans, Bad Magnetic Contactor, Relay
Input Voltage: 460V
Rated Output Current: 28A
Series: Electromotive Impulse G+ Series 2
4008-AFG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Leaky Capacitors (Open, Corroded Traces), Missing parts/components, Physical Damage to the Drive
Input Voltage: 460V
Rated Output Current: 8A
Series: Electromotive Impulse G+ Series 2
4003-AFG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Power Section/Board
Input Voltage: 460V
Rated Output Current: 3A
Series: Electromotive Impulse G+ Series 2
4052-AFG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Cooling Fans, Bad Input Diodes/SCRs, Bad Magnetic Contactor, Relay, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Input Voltage: 460V
Rated Output Current: 52A
Series: Electromotive Impulse G+ Series 2
4021-FVG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Leaky Capacitors (Open, Corroded Traces), No Display
Input Voltage: 460V
Rated Output Current: 21A
Series: Electromotive Impulse VG+ Series 2
4005-AFG+
is an
Inverter-Crane
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Magnetic Contactor, Relay, Bad Control Section/Board, Missing parts/components
Input Voltage: 460V
Rated Output Current: 5A
Series: Electromotive Impulse G+ Series 2
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
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
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
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
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
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