Fuji Electric FRENIC-MEGA - Page 206

5-117
Refer to the assignment of each function to each bit and a conversion example below.
Bit Function Bit data = 0 Bit data = 1 Factory default
0
Lower the carrier frequency
automatically
Disable Enable 1: Enable
1 Detect input phase loss Continue to run Enter alarm processing
1: Enter alarm
processing
2 Detect output phase loss Continue to run Enter alarm processing 0: Continue to run
3
Select life judgment threshold
of DC link bus capacitor
Factory default User-defined setting 0: Factory default
4
Judge the life of DC link bus
capacitor
Disable Enable 1: Enable
5 Detect DC fan lock
Enter alarm
processing
Continue to run
0: Enter alarm
processing
6 Detect braking transistor error Continue to run Enter alarm processing
1: Enter alarm
processing
7 Switch IP20/IP40 enclosure IP20 IP40 0: IP20
An example of conversion from binary to decimal (for the number configured by the factory default setting shown
above)
Decimal = Bit 7 × 2
7
+ Bit 6 × 2
6
+ Bit 5 × 2
5
+ Bit 4 × 2
4
+ Bit 3 × 2
3
+ Bit 2 × 2
2
+ Bit 1 × 2
1
+ Bit 0 × 2
0
= Bit 7 × 128 + Bit 6 × 64 + Bit 5 × 32 + Bit 4 × 16 + Bit 3 × 8 + Bit 2 × 4 + Bit 1 × 2 + Bit 0 × 1
= 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1
= 64 + 16 + 2 + 1
= 83
5.2.6 A codes (Motor 2 Parameters), b codes (Motor 3 Parameters), r codes (Motor 4 Parameters)
The FRENIC-MEGA can switch control parameters even when it is running so that a single inverter can drive four
motors by switching them or turn the energy saving operation ON or OFF for the setup change (e.g., gear switching)
that causes the moment of inertia of the machinery to change.
Function code Motor to drive Remarks
F/E/P and other codes Motor 1 Including function codes commonly applied to motors 1 to 4.
A codes Motor 2
b codes Motor 3
r codes Motor 4
This manual describes function codes applied to motor 1 only. For ones applied to motors 2 to 4 except A42,
b42, and r42 (Motor/Parameter Switching 2 to 4), refer to the corresponding function codes prepared fo
r
motor 1 in Table 5.5 on the next page.
A42, b42
r42
Motor/Parameter Switching 2, 3, and 4 (Mode selection) d25 (ASR Switching Time)
The combination of digital input terminal commands M2, M3 and M4 (Select motor 2, 3 and 4) switches between the
1st, 2nd, 3rd and 4th motors as listed below. (Function codes E01 through E07, data = 12, 36, or 37) When the motor is
switched, the function code group with which the inverter drives the motor is also switched to the corresponding one.
At the same time, the inverter outputs the corresponding signal from the "Motor 1 selected" signal
SWM1 through the
"Motor 4 selected" signal
SWM4 (Function codes E20 through E27 data = 48, 49, 50, or 51) in order to switch the
external switch to that selected motor.
Terminal command Output signals
M2 M3 M4
Inverter-driven motor selected
(Function code group enabled)
SWM1 SWM2 SWM3 SWM4
OFF OFF OFF 1st motor (Default codes) ON OFF OFF OFF
ON － － 2nd motor (A codes) OFF ON OFF OFF
OFF ON － 3rd motor (b codes) OFF OFF ON OFF
OFF OFF ON 4th motor (r codes) OFF OFF OFF ON
A42, b42 or r42 selects whether the combination of terminal commands
M2, M3 and M4 switches the actual motors (to
the 2nd, 3rd, and 4th motors) or the particular parameters (A codes, b codes, or r codes).
Data for
A42, b42 or r42
Function Switching is possible:
0 Motor (Switch to the 2nd, 3rd or 4th motor)
Only when the inverter is stopped
(all run commands are OFF).
1 Parameter (Switch to particular A codes, b codes or r codes) Even when the inverter is running.
From the point of view of signal timing, a combination of M2, M3 and M4 must be determined at least 2 ms
before the signal of a run command is established.