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

The following examples show two practical applications for
the second parameter set.
Example 1
Roller conveyor with rotary table:
● Motor M1 (0.75 kW) drives the rollers on the rotary table
and transports the goods further
● Motor M2 (1.5 kW) rotates the table for the alternating
acceptance of goods from two feed lines
Roller Conveyor with Rotary Table
For alternating operation (rotary movement “exclusive or” of
the transport rollers) on the rotary table, a frequency inverter
for the largest connected load (MMX34AA4D3_) was
selected.
The different rating data of the motors were set in the
parameter groups P7 (for motor M1) and P14 (for motor M2).
The second parameter set (P14) is activated here as an
example via digital input DI6 (P3.27 = 6).
The change between the two motors is implemented in this
example via contactors Q11 (M1) and Q12 (M2) at standstill.
The enabling and selection of the relevant parameter group is
activated via the digital inputs:
M
3
● Motor M1 = DI1 (FWD, control signal terminal 8) operation
with parameter group P7
● Motor M2 = DI1 (FWD, control signal terminal 8) and DI6
(2PS, control signal terminal 16) operation with parameter
group P14 (second parameter set)
˜
M
3
˜
M1
M2
F1
Q11
M1
Q12
F2
U1 V1 W1 U1 V1 W1
M
3
˜
24V
M2
Parameters
During maintenance and setting work the following applies
for reversing duty:
● Motor M1 = DI2 (REV, control signal terminal 9) operation
with parameter group P7
● Motor M2 = DI2 (REV, control signal terminal 9) and DI6
(2PS, control signal terminal 16) operation with parameter
group P14 (second parameter set)
Digital input DI6 is assigned in the factory setting (P3.12 = 6)
with the function PI-OFF (PID controller, deactivated). Setting
P3.12 = 0 is used to switch off this function of DI6. Setting
P3.27 = 6 enables the second parameter set (2PS) function
to be assigned to digital input DI6.
M-Max Series Adjustable Frequency Drive MN04020003E—April 2011 www.eaton.com 121
M
0.75 kW 1.5 kW
6
+24V Out