The encoder interface card VW3A3401 uses an internal 5VDC supply from the drive control block. The interface card supplies 5VDC to the encoder RS422 with maximum current available up to 200mA.
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The Drive Overheat Fault (OHF) indicates that the heat sink temperature has crossed the temperature threshold. This is the information from the temperature sensor located on the heat sink, near the transistor module. When the Thermal Heat Dissipation (THD) is greater than 118% it trips in OHF. 118% is approximately 100 Deg Centigrade temperature on the heat sink. The main causes for the occurrence of this fault are: 1. Excessive ambient temperature. (Provide proper air cooling of the control roo...
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Issue: The motor is running backwards with a forward run command on the drive. Product line: Altivar ATV61 and ATV71 Environment: All models, all serial numbers Cause: The phase rotation is inverted coming out of the drive going to the motor. Resolution: Option 1: To correct the motor rotation swap two motor leads on the drive output terminals. Option 2: Go in the simple start menu 1.1 find output phase rotation change it from ABC to ACB. Refer to the ATV61 and ATV71 programm...
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Issue: What does ramp increment mean for the Altivar 61/71? Product Line: Altivar 61, Altivar 71 Environment: All serial numbers Cause: N/A Resolution: Ramp increment is a parameter that will change the resolution of the listed parameters: see below Inr M [Ramp increment] 0.01 - 0.1 - 1 0.1 0.01 [0.01]: Ramp up to 99.99 seconds 0.1 [0.1]: Ramp up to 999.9 seconds 1 [1]: Ramp up to 9,000 s...
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Issue: Will the relay output, assigned to No Drive Fault, change states on a fault if Auto restart is set to yes? Product Line: Altivar 61 Altivar 71 ATV61 ATV71 Environment: All Cause: Define the No Drive Fault relay relationship with Auto restart function. Resolution: The relay assigned to No Drive Fault will not change states on a fault, if Auto restart is set to YES, until the max restart time is depleted and the fault still exists.
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