Starting Frequency - Mitsubishi FR - S500 Instruction Manual

Parameter
DC injection brake
10
operation frequency
DC injection brake
11
operation time
12 DC injection brake voltage
(When Pr. 11 is set to "0s" or Pr. 12 is set to "0%", DC injection brake is not operated.)
<Setting>
Use Pr. 10 to set the frequency at which the DC injection brake operation is started.
Use Pr. 11 to set the period during when the brake is operated.
Use Pr. 12 to set the percentage of the power supply voltage.
Change the Pr. 12. setting to 4% when using the inverter-dedicated (constant-torque
motor).
If the Pr. 12 value remains unchanged from the factory setting and Pr. 71 is changed
to the setting for use of the constant-torque motor, the Pr. 12 setting is automatically
changed to 4%.
Install a mechanical brake. No holding torque is provided.
2
.3.8

Starting frequency

The starting frequency at which
the start signal is turned on can
be set in the range 0 to 60Hz.
Parameter Name
13 Starting frequency
CAUTION
The inverter will not start if the frequency setting signal is less than the value set in
Pr. 13 "starting frequency".
For example, when 5Hz is set in Pr. 13, the motor will not start running until the
frequency setting signal reaches 5Hz.
Note that when Pr. 13 is set to any value lower than Pr. 2 "minimum frequency",
simply turning on the start signal will run the motor at the preset frequency if the
command frequency is not input.
Related parameters
Minimum frequency setting
Factory
Name
Setting
CAUTION
Factory
Setting
0.5Hz
CAUTION
Pr. 2 "minimum frequency" (refer to page 59)
Setting
Range
3Hz 0 to 120Hz
0.5s 0 to 10s
6% 0 to 15%
Output frequency
(Hz)
60
Pr.13
0
Foward rotation
Setting
Range
0 to 60Hz Setting is enabled when Pr. 30 = "1".
65
Remarks
Setting is enabled when
Pr. 30 = "1".
Frequency setting signal (V)
ON
Remarks
Time
2