M-Maxâ„¢ Series Adjustable Frequency Drive - Eaton Corporation

M-Max Series Overview
Block Diagram, Elements of M-Max Frequency Inverters
L1
L2/N
L3
PE
EMC
Item
Number Description
1 Supply L1, L2/N, L3, PE, input supply voltage ULN = Ue at 50/60 Hz:
MMX11: 100V class, single-phase input connection (1 AC 120V)
MMX12: 200V class, single-phase input connection (1 AC 230V/240V)
MMX32: 200V class, three-phase input connection (3 AC 230V/240V)
MMX34: 400V class, three-phase input connection (3 AC 400V/480V)
MMX35: 575V class, three-phase input connection (3 AC 575V)
2 Internal interference suppression filter (MMX…F_), category C2 and C3, to IEC/EN 61800-3
EMC-connection of internal interference suppression filter to PE
3 Rectifier bridge, single-phase (MMX1_) or three-phase (MMX3_), converts the AC voltage of the electrical network into DC voltage
4 DC link with charging resistor, capacitor and switching mode power supply unit
(SMPS = Switching Mode Power Supply):
DC link voltage UDC with single-phase input connection (1 AC): UDC = 1.41 x ULN DC link voltage UDC with three-phase input connection (3 AC): UDC = 1.35 x ULN 5 Inverter. The IGBT based inverter converts the DC voltage of the DC link (UDC ) into a three-phase AC voltage (U2 ) with variable amplitude and
frequency (f2 ). Sinusoidal pulse width modulation (PWM) with V/f control can be switched to speed control with slip compensation
6 Motor connection U/T1, V/T2, W/T3 with output voltage U2 (0–100% Ue ) and output frequency f2 (0–320 Hz) output current (I2 ):
MMX11: 1.7–4.8A
MMX12: 1.7–9.6A
MMX32: 1.7–11A
MMX34: 1.3–14A
MMX35: 1.7–9.0A
100% at an ambient temperature of 122°F (50°C) with an overload capacity of 150% for 60s every 600s and a starting current of 200% for 2s every 20s
7 Keypad with control buttons, LCD display, control voltage, control signal terminals, microswitches, and interface for the PC interface module (option)
8 Braking transistor: connections R+ and R– for external braking resistance (only with three-phase FS2 and FS3 units)
9 Three-phase asynchronous motor, variable speed control of three-phase asynchronous motor for assigned motor shaft power values (P2 ):
MMX11: 0.25–1.1 kW (230V, 50 Hz) or 0.33–1 hp (230V, 60 Hz)
MMX12: 0.25–2.2 kW (230V, 50 Hz) or 0.25–3 hp (230V, 60 Hz)
MMX32: 0.25–2.2 kW (230V, 50 Hz) or 0.25–3 hp (230V, 60 Hz)
MMX34: 0.37–7.5 kW (400V, 50 Hz) or 0.5–10 hp (460V, 60 Hz)
MMX35: 1–7.5 hp (575V, 60 Hz)
14 M-Max Series Adjustable Frequency Drive MN04020003E—April 2011 www.eaton.com
+
R+
R–
U/T1
V/T2
W/T3
PE
M
3 ~