Best E5 Series User Manual page 130

Chapter 5 Specification of Parameters
Overload protection curve for ordinary motor running at 10Hz
Input source of temperature
P30.25
transducer signal of motor 1
0: AI1
1: AI2
2: Reserved
When P30.23 is set to "2: judged from temperature transducer ", the analog signal input
channel of temperature sensor of motor 1 is set by this parameter. The drive compares the
signal input value via this analog channel with the thermal protection threshold set by P30.26.
If it is bigger than the threshold, the drive will immediately give an alarm of motor overload
"oL2". Protection through temperature sensor has no characteristic of inverse time lag curve.
Thermal protection threshold of
P30.26
temperature transducer of motor 1
This parameter is used with P30.25, setting the overload protection point of motor 1. When the
input analog signal through the source set by P30.25 is bigger than this threshold, the drive will
immediately give an fault of motor overload "oL2".
Group P31 V/f Control Parameters of Motor 1 Group P31
Set control parameters in Group P31 when motor 1 is selected as current load motor on which
V/f control is performed.
P31.00
Set the relation between output voltage and output frequency of the drive when motor 1 is
under V/f control.
0: Linear V/f
Applies to general constant-torque load. When drive output frequency is 0, output voltage will
be 0, while when output frequency is rated frequency of motor, the output voltage would be
rated voltage of motor.
1: Broken line V/f (determined by P31.01~P31.08)
Applies to spin drier, centrifuge, industrial washing machine and other special loads. When
drive output frequency is 0, output voltage will be 0, while when output frequency is rated
frequency of motor, the output voltage would be rated voltage of motor. What is different is
this pattern can set 4 inflection points by P31.01~P31.08. See Fig. 5-36.
V/f curve setting
Range: 0~2
Range: 0.00V~10.00V
Range: 0~8
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E5 User Manual
Factory default: 1
Factory default:
10.00V
Factory default: 0