Chapter 6: Programming Features
Firmware – S2011 and S3012
Revision: 1 (9/98) 56 © Saftronics, Inc.
§ Setting Example of Frequency Agree Signal (Setting: 2)
Figure 46 Example of Frequency Agree Signal
§ Setting Example of Desired Frequency Agree Signal (Setting: 3)
Figure 47 Example of Desired Frequency Agree Signal
6.6 Adjusting Motor Torque
6.6.1. Torque Compensation Gain (n067)
Motor torque requirement changes according to load conditions. Full-range automatic torque boost adjusts voltage of V/f
pattern according to the requirement. The FP5/GP5 automatically adjusts the voltage during constant-speed operation as
well as during acceleration. The required torque is calculated by the Inverter.
Output voltage ∝ Torque compensation gain (n067) 5 Required torque
• Operation
Figure 48 Torque Characteristics
Normally, no adjustment is necessary for torque compensation gain (n067 factory setting: 1.0). When the wiring distance
between the Inverter and the motor is long, or when the motor generates vibration, change the torque compensation gain.
Increasing torque compensation gain increases motor torque, but an excessive increase may cause the following:
• Inverter malfunctions because of motor overexcitation.
• Motor overheat or excessive vibration.
Increase torque compensation gain gradually while verifying the motor current.
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