Our Team Expertly Repairs Magnetek AC Inverter GPD503 Series
Precision Zone specializes in Magnetek product repairs servicing a wide range of AC inverters such as Magnetek GPD503 Series inverter.
Magnetek’s GPD503 inverter is a tough, effective and adaptable inverter that is software based which offers flexibility to every machine application. A broad function selection allows rapid and significant changes in machine’s performance.
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 GPD503 SERIES 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 |
|---|---|
| Uv1, 2 and 3 | Undervoltage |
| OV | Overvoltage |
| GF | Ground Fault |
| ol1, 2, and 3 | Overload |
| rr | Braking Transistor |
| CPF | Control Circuit |
| oh1 and oh2 | Overheat |
The majority of these alarms can be triggered if there is a fault in the control circuit.
Recently Repaired Products
GPD503-DS309
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Regen Section, Bad Brake Transistor (Regen), Leaky Capacitors (Open, Corroded Traces), Bad Cooling Fans, Excessive Dirt/Debris, Bad Gate Section/Board, Bad Circuit Board Component(s)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 230V, 7.5kW
GPD503-DS307
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Missing parts/components, Bad Power Section/Board, Bad Circuit Board Component(s), Bad Cooling Fans, Excessive Dirt/Debris, Bad Magnetic Contactor, Relay, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 230V, 3.7kW
GPD503-DS308
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Control Section/Board, May Require Board Replacement, Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Bad Cooling Fans, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 230V, 5.5kW
GPD503-DS075
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Gate Section/Board, Bad Magnetic Contactor, Relay
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 460V, 55kW
GPD503-DS317
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Gate Section/Board, Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Leaky Capacitors (Open, Corroded Traces), Bad Cooling Fans, Excessive Dirt/Debris
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 460V, 7.5kW
GPD503-DS360
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Cooling Fans, Bad Gate Section/Board, Bad Magnetic Contactor, Relay, Bad Output Transistors/SCRs, Bad Precharge Resistor, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 460V, 45kW
GPD503-DS316
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Magnetic Contactor, Relay, Bad Cooling Fans, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 460V, 5.5kW
GPD503-DS310
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Control Section/Board, Bad Power Section/Board, Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Bad Magnetic Contactor, Relay, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 230V, 11kW
GPD503-DS315
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Passed Testing - Highly Recommend Recondition
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 460V, 3.7kW
GPD503-DS322
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Control Section/Board, Bad Cooling Fans, Bad Gate Section/Board, Bad Output Transistors/SCRs, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 230V, 18kW
GPD503-DS330
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Control Section/Board, Bad Cooling Fans, Bad Fuse, Bad Gate Section/Board, Bad Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 460V, 22kW
GPD503-DS350
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Bad Gate Section/Board, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 460V, 37kW
GPD503-DS311
is an
Inverter-General Purpose
manufactured by
Magnetek
Discovered issues:
Bad Capacitor(s), Bad Cooling Fans, Bad Fuse, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces), Bad Control Section/Board, Leaky Capacitors (Open, Corroded Traces)
Drive Type: Magnetek AC Inverter
Series: 503/G3
Input Voltage & Output Power: 230V, 15kW