50
4. Parameter description
Parameter
<Setting>
• After a stop signal is put in (please refer to Chapter 3 for the primary operation), the output
frequency of the inverter will decrease gradually. In case the output frequency reaches the ‘DC
injection brake operation frequency (P.10)’, the DC injection brake will be active.
• During DC injection brake, a DC voltage will be injected into the motor windings by the inverter,
which is used to lock the motor rotor. This voltage is called ‘DC injection brake voltage (P.12)’. The
larger the P.12 value is, the higher the DC brake voltage and the stronger the brake capability.
• The DC brake operation will last a period (the set value of P.11) to overcome the moter inertia. To
achieve an optimum control, P.11 and P.12 should be set properly.
As shown as follows:
P.12
Time
P.11
Output
frequency
（
Hz
）
P.10
DC
braking
voltage
Time
Stop signal input
Note: 1. Users must set P.11 and P.12 appropriately in order to obtain the best control characteristics.
2. If P.187=1, P.10 is in the range of 0~1000Hz.
4.8
Starting frequency (P.13)
P.13 “Starting frequency”
Related parameters
P.2
“
Minimum frequency
”
●When the motor starts up, the instant output frequency of the inverter is called ‘starting frequency’.
Parameter
Factory setting
Setting range
Remarks
13
0.5Hz
0~60Hz
---
<Setting>
• If the target frequency of the inverter islower than the setting value of P.13, the motor will not run.
When the signal of the motor start, the output frequency will go up begin with the value of P.13.
