YASKAWA
TOEPC71061723A YASKAWA AC Drive CR700 Quick Start Guide
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trigger point for the electronic thermal protector. This provides motor overheat protection from low speed to high
speed across the full speed range.
Load Tolerance
Cooling Capability
Overload Characteristics (at 100% motor load)
This motor is designed to operate with commercial line
power. Operate at a 60 Hz base frequency to maximize
the motor cooling ability.
If the motor operates at frequencies less than 60 Hz, the
drive will detect
oL1
. The drive triggers a fault relay
output and the motor coasts to stop.
2 : Constant Torque 10:1 Speed Range
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
Cooling Capability
Overload Characteristics (at 100% motor load)
This motor is designed to withstand increased
temperatures during continuous operation in the low
speed range (10% base frequency).
The motor operates continuously at 10% to 100% base
frequency.
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
Cooling Capability
Overload Characteristics (at 100% motor load)
This motor is designed to withstand increased
temperatures during continuous operation in the more low
speed range (1% base frequency).
The motor operates continuously at 1% to 100% base
frequency. Operating slower than 1% speed at 100% load
will cause motor overload.
6 : Variable Torque (50Hz)
Use this setting for general-purpose motors with a 50 Hz base frequency.
The overload tolerance decreases as Run 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.
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