User Manual
EM303B General Purpose Inverter
90
F0-21=0
JOG
＋／－
on keypad is for jog running function.
F0-21=1
JOG
＋／－
on keypad is for positive/negative input switching function, i.e. when the
settings are positive speed, positive PID, and positive torque,
JOG
＋／－
is for switching to
negative speed, negative PID, and negative torque.
F0-21=2
JOG
＋／－
on keypad is disabled.
No.
Function
Range
Unit Default Type
F0-22
Speed Monitoring Options
0: Frequency Hz
1: Speed rpm
0
●
F0-23
Customer Defined Scaling
0.01~600.00
30.00
●
F0-22
is for setting speed display. If F0-22=0, the reference input value displayed on
keypad is the target output frequency of inverter. If F0-22=1, the reference input value is
the target output speed of inverter.
F0-23
Customer defined scaling. Mechanical speed = Mechanical speed coefficient
(Customer defined scaling) * Output frequency. When the unit of setting speed is rpm,
adjusting the parameter of F0-23 will make the displayed value of motor speed match the
actual value.
No.
Function
Range
Unit Default Type
F0-08
Motor Running Direction
0: Forward
1:Reverse
0
●
F0-24
Forward/Reverse Control Mode
0: Reverse Permitted
1: Reverse Prohibited
0
〇
F0-25
F/R Deadband Time
0.00~600.00
S
0.00
〇
F0-08
Motor running direction: F0-08=0 is forward. When F0-24=0 reverse permitted, the
running direction will be switched as reverse when F0-08=1.
Permission of Motor Forward/Reverse
F0-24=0 Reverse permitted
Motor’s running direction is set by F0-08, or
controlled by terminal F/R.
F0-24=1 Reverse prohibited
Motor can only run in one direction. F0-08
parameters are disabled, and terminal F/R is off.
Deadband of Switching the Forward/ Reverse
of Motor
If F0-25=0.00, there is no deadband of
forward/reverse.
If F0-25≠0, when forward/reverse switches, the inverter runs at 0Hz in the time set by
F0-25 as the motor speed drops to 0Hz, and then runs to setting frequency in opposite
direction. As shown in Figure7-6.
Figure 7-6 Forward/Reverse Deadband
