4−68
Speed Deviation Excessive Signal
The inverter outputs the detection signal when the deviation between the set speed
and actual motor speed becomes less the threshold level (P027). This function is valid
when connecting the encoder feedback to the inverter.
To use this function, assign “22 (DSE)” to one of the intelligent output terminals.
Option
Code
Terminal
Symbol
Function Name State Description
22
DSE Speed deviation
excessive signal
ON Deviation between the speed command and motor
speed is less than P027
OFF Deviation between the speed command and motor
speed exceeds P027
alid for inputs:
11, 12, AL0 – AL2 Example for terminal [11] (default output
configuration shown – see page 3-90):
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see page 4-52 and 3-90):
See I/O specs on page 4-6
Required settings
P027
Notes:
• The example circuit for terminal [11] drives a relay
coil. Note the use of a diode to prevent the
negative-going turn-off spike generated by the coil
from damaging the inverter’s output transistor.
RY
Inverter output
terminal circuit
CM2 11
DSE
AL1
Power
supply
Load
AL0 AL2
Inverter logic
circuit board
DSE
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