YASKAWA SGD7S-xxxDA0 series Product Manual

Contents

10.3 Monitoring Machine Operation Status and Signal Waveforms10.3.3 Using a Measuring Instrument10-10Changing the Monitor Factor and OffsetYou can change the monitor factors and offsets for the output voltages for analog monitor 1and analog monitor 2. The relationships to the output voltages are as follows:The following parameters are set.Adjusting the Analog Monitor OutputYou can manually adjust the offset and gain for the analog monitor outputs for the torque refer-ence monitor and motor speed monitor.The offset is adjusted to compensate for offset in the zero point caused by output voltage driftor noise in the monitoring system.The gain is adjusted to match the sensitivity of the measuring system.The offset and gain are adjusted at the factory. You normally do not need to adjust them.Pn550(2550h)Analog Monitor 1 Offset VoltageSetting Range Setting Unit Default Setting When Enabled Classification-10,000 to 10,000 0.1 V 0 Immediately SetupPn551(2551h)Analog Monitor 2 Offset VoltageSetting Range Setting Unit Default Setting When Enabled Classification-10,000 to 10,000 0.1 V 0 Immediately SetupPn552(2552h)Analog Monitor 1 MagnificationSetting Range Setting Unit Default Setting When Enabled Classification-10,000 to 10,000 ×0.01 100 Immediately SetupPn553(2553h)Analog Monitor 2 MagnificationSetting Range Setting Unit Default Setting When Enabled Classification-10,000 to 10,000 ×0.01 100 Immediately Setup• Example for Setting the Item to Monitor to the Motor Speed (Pn006 = n.00)= (−1) × × +Analog monitor 1output voltageAnalog Monitor 1 SignalSelection (Pn006 = n.XX)Analog Monitor 1Magnification (Pn552)Analog Monitor 1Offset Voltage (Pn550)= (−1) × × +Analog monitor 2output voltageAnalog Monitor 2 SignalSelection (Pn007 = n.XX)Analog Monitor 2Magnification (Pn553)Analog Monitor 2Offset Voltage (Pn551)Speed Position TorqueSpeed Position TorqueSpeed Position TorqueSpeed Position TorqueExample+6 V-6 V-600+6 00+8 V-8 V-800+800+6 V-6 V-6000+ 6000When Pn552 = 100 (Setting Unit: ×0.01) When Pn552 = 1,000 (Setting Unit: ×0.01)Analog monitor output voltage (V)Motor speed(min-1)Note: The effective linearity range is ±8 V.The resolution is 16 bits.Approx. +10 VApprox. -10 VAnalog monitor output voltage (V)Motor speed(min-1)