GS Series Drives Frequently Asked Questions
GS Series Drives Frequently Asked Questions
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| Question: Will the DOP professional software work with the GS series of drives? |
| Answer: No, The DOP software is used exclusively to program Hitachi drives. The GS series have there own software called "GSoft" which is Now available under GS Drives. |
| FAQ ID: 944 |
| Question: How can I establish a minimum speed on the GS2? |
| Answer: Adjust P-6.16 lower bound of output frequency. |
| FAQ ID: 945 |
| Question: Can the GS1 drive perform dynamic braking? |
| Answer: No, it does not have this function. Also, since the dc bus is isolated internally, a dynamic braking unit would not be feasible either. |
| FAQ ID: 946 |
| Question: Can you control the GS drives with TND or Entivity studio? |
Answer:
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| FAQ ID: 947 |
| Question: Can I use the MOP type terminal speed control with acceleration and deceleration times of less than 1 second? E.G. settings 14 and 15 for DI3-DI6 on GS2 and 14 and 15 for DI3 and DI4 on the GS1. |
| Answer: No. When the acceleration time or decelration time is set below 1 second, there is not enough time for the cpu to process the speed change. If the lower times are required, use any of the other methods of speed control available. |
| FAQ ID: 950 |
| Question: Can I power the GS3 series drives from the D.C. Bus? |
| Answer: No the GS3 has input phase detection that will not let the drive run without three phase input. |
| FAQ ID: 1029 |
| Question: My horsepower requirements fit either the GS2 or the Durapulse drive families,which is the best choice for me? |
| Answer: Both drives will run most applications, but if you need more speed control or low speed performance the Durapulse would be the drive to use .The primary difference in the drives is the control method. The GS2 is a Volts/Hertz drive and the GS3/Durapulse is a Sensorless vector drive. An example of the different applications is if you needed to run a conveyor both drives will work fine. If you need to operate a spindle that needs to maintain a stable speed across its range you would need the Durapulse with a feedback card. |
| FAQ ID: 1030 |
| Question: Can I use these on electric vehicles? |
| Answer: AutomationDirect is a direct seller of automation and industrial control products such as PLCs, sensors, pushbuttons, AC drives/motors, enclosures, operator interfaces, and much more. AutomationDirect is aware that many engineers and hobbyists are currently designing or converting vehicles from internal combustion engines to electric engines. Our current drive and motor products are intended to be used in industrial applications. As a result, AutomationDirect does not currently support or encourage the use of our products in electric vehicles. We apologize for this, and may revise this policy at a later date if more suitable equipment becomes available. |
| FAQ ID: 1073 |
| Question: Is there a good way to do a master/follower with the VFDs? |
| Answer: Master/follower is a combination of AC drives and motors to get the follower motor to have a proportional speed of the master motor. The GS2 and GS3 VFD's have an analog output 0-10 Volt for frequency. This can be used for outputting an approximate speed control signal. Error can be from 1% to 5 %, depending on the speed percentage; at lower speeds, the error is bigger. You may offset the input frequency of the follower using the parameters P4-01 to 4-03 Just connect AO of the master into the analog input for frequency set point on the follower with a wire. Connect the ACM terminals from the master to the follower. Program the analog output for frequency and the analog input for 0 10 Volt (P4-00 as 2) If you want higher precision, consider the use of Durapulse drives with encoder feedback. This will reduce the error to less than 0.5%. In either case, this is not electronic gearing. |
| FAQ ID: 1076 |
| Question: Does you have a cable/diagram for cable to connect my GS series drive to my DirectLogic or Click PLC? |
| Answer: Yes, You can use the GS-RJ12-CBL-2 http://web2.automationdirect.com/static/manuals/ziplinks/cabledrawings/GS-RJ12-CBL-2.pdf |
| FAQ ID: 1191 |
| Question: How can I set a higher maximum speed (RPM/frequency) than 60hz for the drive and motor ? |
| Answer: Change the setting in P0.04 (Motor Maximum RPM) Do not exceed the motor manufacturer's maximum RPM specification |
| FAQ ID: 1245 |
| Question: Does the GS1 have Line Start Lockout feature like the GS3 ? |
Answer: Yes;
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| FAQ ID: 1265 |