Specifications

VFD-M Series
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5-64
Pr. 154
Reserved
Pr.155
Compensation Coefficient for Motor Instability
a
Factory Setting: 0.0
Settings 0.1 to 5.0 (recommended setting 2.0)
0.0 Disable
 This parameter is used to improve a condition of unstable current in any specific area.
For higher frequencies, you can adjust this parameter to 0.0, and increase the setting
value in Pr.155 for 30HP and above (a setting of 2.0 is recommended).
Pr.156
Communication Response Delay Time
a
Factory Setting: 0
Settings 0 to 200 (x500µs)
 This parameter is used to set communication response delay time. If you set Pr. 156 to 1
the communication response delay time will be 1 X 500µs=500µs, set Pr. 156 to 2 the
communication response delay time will be 2 X 500µs=1000µs.
Pr.157
Communication Mode Selection
a
Factory Setting: 1
Settings 0: Delta ASCII
1: MODBUS
 This parameter is to select the communication mode, 0 is the existed Delta ASCII
communication mode, whereas 1 is to select MODBUS mode.