Operation
52 M-Max Series Adjustable Frequency Drive MN04020003E—October 2013 www.eaton.com
Commissioning with Control Signal Terminals
(Factory Setting)
M-Max frequency inverters are set in the factory and can be
started directly via the control signal terminals by connecting
the motor outputs allocated for the input voltage (see
connection example below).
You can skip this section if you want to set up the
parameters directly for optimal operation of the frequency
inverter based on the motor data (rating plate) and the
application.
The following shows a simplified connecting example of a
connection with default settings.
Connect the frequency inverter according to the connection
example for simple commissioning with the specified default
settings (see connecting example above).
If the connections for the setpoint value potentiometer
cannot be clearly allocated with terminals 1, 2 and 3, you
should set the potentiometer to about 50% before giving the
start release (FWD/REV) for the first time.
When the specified power supply is applied to connection
terminal L2/N and L3 (MMX11) or L1 and L2/N (MMX12) or
L1, L2/N and L3 (MMX32, MMX34, MMX35), the LCD
display lights up and all segments are displayed briefly.
The frequency inverter runs a self-test automatically when
the power is applied.
The arrows ( ) in the top status line of the LCD display
show the operating status:
●
READY = proper operating status
●
STOP = stop (no start command)
The arrows ( ) in the bottom status line show the controller
commands. Actuation is done via the control signal terminals
(I/O = Control Input/Output) in the factory setting.
The FWD mark (forward) designates the basic rotational
direction (phase sequence for a clockwise rotating field) on
connection terminals U/T1, V/T2 and W/T3.
The operating data of the output frequency is shown in the
LCD display in alternating sequence with M1.1 and 0.00 Hz.
The arrow in the left-hand status line indicates menu level
MON (Monitor = operating data display).
Circuit Example Terminal Designation
L1 Single-phase
input connection
(MMX12)
— Three-phase input
connection
(MMX32,
MMX34)
L2/N Single-phase
input connection
(MMX11)L3 —
PE Ground connection
6 Control voltage +24V (output, maximum 50 mA)
8 FWD, start release clockwise rotating field
9 REV, start release left rotating field
U Connection for three-phase AC motor (three-phase motor)
V
W
PE
3 Reference potential GND (0V)
1 Setpoint value voltage +10V (output, maximum 10 mA)
2 Frequency setpoint f-Set (input 0–10V)
PE
PE
PE
PE
WVU
M
3 ~
123
6 89
24V
FWD
0–10V
L3L1
L2/N
L1
N
L3L1
L2
REV
f-Soll
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