Omron MX2 User Manual

124
"B" Group: Fine Tuning Functions Section 3-6
3-6-20 Free-V/F Settings Related
Please refer to chapter 3 for detailed explanation of the function.
3-6-21 Brake Control Function Related
The brake control function allows you to make the inverter control an external
brake used for a lift or other machines. To enable this function, specify "01"
(enabling the brake control function) for the Brake Control Enable (b120). This
function operates as described below.
1. When the inverter receives an operation command, it starts the output and
accelerates the motor up to the Brake Release Frequency Setting (b125).
2. After the Brake Release Frequency Setting is reached, the inverter waits
for the braking wait time (b121), and then outputs the brake release signal
(BOK). However, if the inverter output current has not reached the brake
release current (b126), the inverter does not output the brake release sig-
nal, but trips and outputs a brake error signal (BER).
3. When the braking confirmation signal (BOK) has been assigned to an in-
telligent input terminal (that is, when "44" is specified for one of "C001" to
"C007"), the inverter waits for the Brake Wait Time for Confirmation (b124)
without accelerating the motor after receiving the brake release signal. If
"B" Function Run
Mode
Edit
Defaults
Func.
Code
Name Description EU Units
B088 Restart mode after FRS Selects how the inverter resumes
operation when free-run stop
(FRS) is cancelled, three options:
00 Restart from 0 Hz
01 Restart from frequency
detected from real speed of
motor (freq. matching)
02 Restart from frequency
detected from real speed of
motor (active freq. matching)
8 00 –
B091 Stop mode selection Select how the inverter stops the
motor, two option codes:
00 DEC (decelerate to stop)
01 FRS (free-run to stop)
8 00 –
"B" Function Run
Mode
Edit
Defaults
Func.
Code
Name Description EU Units
B100 Free V/F setting, freq.1 Set range, 0 ~ value of b102 8 0. Hz
b101 Free V/F setting, voltage.1 Set range, 0 ~ 800 V 8 0.0 V
b102 Free V/F setting, freq.2 Set range, value of b100 ~b104 8 0. Hz
b103 Free V/F setting, voltage.2 Set range, 0 ~ 800 V 8 0.0 V
b104 Free V/F setting, freq.3 Set range, value of b102 ~b106 8 0. Hz
b105 Free V/F setting, voltage.3 Set range, 0 ~ 800 V 8 0.0 V
b106 Free V/F setting, freq.4 Set range, value of b104 ~b108 8 0. Hz
b107 Free V/F setting, voltage.4 Set range, 0 ~ 800 V 8 0.0 V
b108 Free V/F setting, freq.5 Set range, value of b108 ~b110 8 0. Hz
b109 Free V/F setting, voltage.5 Set range, 0 ~ 800 V 8 0.0 V
b110 Free V/F setting, freq.6 Set range, value of b108 ~b112 8 0. Hz
b111 Free V/F setting, voltage.6 Set range, 0 ~ 800 V 8 0.0 V
b112 Free V/F setting, freq.7 Set range, b110 ~ 400
*1
8 0. Hz
b113 Free V/F setting, voltage.7 Set range, 0 ~ 800 V 8 0.0 V
*1
Up to 1000Hz for High frequency mode (d060 set to "2")

Omron MX2 Specifications

General

Model	MX2
Category	Inverter
Enclosure Rating	IP20
Control Method	V/f control, Sensorless vector control
Frequency Range	0.1 to 400 Hz
Protection	Overcurrent, Overvoltage, Undervoltage, Overheat, Short circuit
Communication	Modbus RTU
Ambient Temperature	-10 to 50 °C (without freezing or condensation)
Overload Capacity	150% for 60 seconds
Cooling Method	Fan Cooled
Humidity	5 to 95% RH (without condensation)
Altitude	Up to 1000m without derating
Voltage	200-240 VAC, 380-480 VAC
Braking Unit	Built-in (for certain models), Optional External