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FAQ within [ MELSEC-Q Series ]
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It depends on the setting of servo parameter "[PA03] Absolute position detection system" whether the HPR request flag ("[Md.31] Status": b3) turns ON or not.... More Details >>
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The following shows the initialization procedure. (1) Turn OFF the PLC ready flag. (2) Turn ON "[Cd.2] Parameter initialization request". [QD75M, QD75MH, LD... More Details >>
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Both OUT and SET instructions set the device by completion of condition.However, if not completion of condition, OUT instruction resets the device while SET ... More Details >>
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Torque is limited by the lower set value of "[Pr.17] Torque limit setting value" and "[Cd.22] New torque value/forward new torque value".When the current tor... More Details >>
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Alarm 2149 (Main circuit OFF warning) occurs when the servo system turns ON with no power supplied to the servo main circuit. Review the condition of servo O... More Details >>
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The following shows the devices for the battery errors. • [SM51] Battery low latch Turn ON when the voltage of battery reduces to less than 2.5[V]. Remains O... More Details >>
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Servo motor rotation direction
To reflect the change, set "[PA14] Rotation direction selection/traveldirection selection" and cycle the servo amplifier or execute a home position return af... More Details >>
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No, the operation speed is not changed by changing the indirectly specified value.To change the speed during operation, use CHGV instruction. More Details >>
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Change the direction with "[PA14] Rotation direction selection/travel direction selection". More Details >>
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Major error 1201 occurs when the absolute position is erased.Execute the home position return after checking the batteries of the Motion CPU module and the s... More Details >>
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