04/10 MN04020001Z-EN
Features
19
Figure 7: Block diagram, elements of the M-Max
TM
frequency inverters
a Supply L1, L2/N, L3, PE, mains supply voltage U
LN
=U
e
at 50/60 Hz:
MMX11: 100 V class, single-phase mains connection (1 AC 120 V),
MMX12: 200 V class, single-phase mains connection (1 AC 230 V/240 V),
MMX32: 200 V class, three-phase mains connection (3 AC 230 V/240 V),
MMX34: 400 V class, three-phase mains connection (3 AC 400 V/480 V).
b Internal interference suppression filter (MMX... F...), category C2 and C3, to IEC/EN 61800-3. EMC-connection of internal interference suppression
filter to PE.
c Rectifier bridge, single phase (MMX1…) or three-phase (MMX3…), converts the AC voltage of the electrical network into DC voltage.
d DC link with charging resistor, capacitor and switching mode power supply unit (SMPS = Switching Mode Power Supply):
DC link voltage U
DC
with single-phase mains connection (1 AC): U
DC
= 1.41 x U
LN
DC link voltage U
DC
with three-phase mains connection (3 AC): U
DC
= 1.35 x U
LN
.
e Inverter. The IGBT based inverter converts the DC voltage of the DC link (U
DC
) into a three-phase AC voltage (U
2
) with variable amplitude and
frequency (f
2
). Sinusoidal pulse width modulation (PWM) with V/f control can be switched to speed control with slip compensation.
f Motor connection U/T1, V/T2, W/T3 with output voltage U
2
(0 to 100 % U
e
) and output frequency f
2
(0 to 320 Hz)
output current (I
2
):
MMX11: 1.7 A - 4.8 A,
MMX12: 1.7 A - 9.6 A,
MMX32: 1.7 A - 11 A,
MMX34: 1.3 A - 14 A.
100 % at an ambient temperature of +50 °C with an overload capacity of 150 % for 60 s every 600 s and a starting current of 200 % for 2 s every
20 s.
g Keypad with control buttons, LCD display, control voltage, control signal terminals, microswitches and interface for the PC interface module (Option).
h Braking transistor: connections R+ and R- for external braking resistance (only with MMX34 / at 3.3 A).
i Three-phase asynchronous motor, variable speed control of three-phase asynchronous motor for assigned motor shaft power values (P
2
):
MMX11: 0.25 - 1.1 kW (230 V, 50 Hz) or 0.33 - 1 HP (230 V, 60 Hz),
MMX12: 0.25 - 2.2 kW (230 V, 50 Hz) or 0.25 - 3 HP (230 V, 60 Hz),
MMX32: 0.25 - 2.2 kW (230 V, 50 Hz) or 0.25 - 3 HP (230 V, 60 Hz),
MMX34: 0.37 - 7.5 kW (400 V, 50 Hz) or 0.5 - 10 HP (460 V, 60 Hz).
ba
c
f
g
h
de
+
R+
EMC
L1
L2/N
L3
PE
R-
M
3
h
i
U/T1
V/T2
W/T3
PE