YASKAWA CIPR-GA50UВ001AJ Series Installation & Primary Operation page 216

17 UL Standards
Use this setting for drive-dedicated motors with a speed range for constant torque of 1:10.
The speed control for this motor is 10% to 100% when at 100% load. Operating slower
than 10% speed at 100% load will cause motor overload.
Load Tolerance
3 : Constant Torque 100:1 SpeedRange
Use this setting for vector motors with a speed range for constant torque of 1:100.
The speed control for this motor is 1% to 100% when at 100% load. Operating slower
than 1% speed at 100% load will cause motor overload.
Load Tolerance
4 : PM Variable Torque
Use this setting for PM motors with derated torque characteristics.
The overload tolerance decreases as motor speed decreases because the cooling fan speed
decreases and the ability of the motor to cool decreases in the low speed range.
The overload tolerance characteristics of the motor change the trigger point for the
electronic thermal protector. This provides motor overheat protection from low speed to
high speed across the full speed range.
216
Cooling Capability
This motor is designed to withstand
increased temperatures during
continuous operation in the low
speed range (10% base frequency).
Cooling Capability
This motor is designed to withstand
increased temperatures during
continuous operation in the low
speed range (1% base frequency).
YASKAWA TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
Overload Characteristics
(at 100% motor load)
The motor operates continuously at
10% to 100% base frequency.
Operating slower than 10% speed at
100% load will cause motor
overload.
Overload Characteristics
(at 100% motor load)
The motor operates continuously at
1% to 100% base frequency.
Operating slower than 1% speed at
100% load will cause motor
overload.