Magnetek TM7310rev01 Benutzerhandbuch

 

48

 

 

(Motor Overload Start Level)   
This parameter defines maximum current 
at which motor can run continuously 
without triggering the motor overload.  
One of the two parameters that define the 
motor overload curve.  Set as a percent 
of Rated Motor Current. 

N Y 

(Motor Overload Time Out)   
This parameter defines the amount of 
time before a motor overload alarm 
occurs when the motor is running at the 
current level defined below: 

⎟⎟

⎟

⎟

⎟

⎠

⎞

⎜⎜

⎜

⎜

⎜

⎝

⎛

+

⎟

⎟

⎟

⎠

⎞

⎜

⎜

⎜

⎝

⎛

%

40

:

 

This is the other parameter used to define 
the overload curve. For more information 
on the motor overload curve, see 

TIME OUT on page 48. 

N Y 

 

  

This is the other parameter used to define the 
overload curve. 
The user can adjust the motor overload 
parameters.  Three overload curves are shown 
in the examples below.  Curve #1 is the default 
motor overload curve. 
 

 OVLD 

START 
LEVEL 

OVLD 
TIME 
OUT 

curve #1 

110% 

60 sec 

curve #2 

110% 

40 sec 

curve #3 

120% 

70 sec 

When the motor usage exceeds the user 
defined motor overload curve, the drive will 
declare a motor overload alarm. 
 
 
 
 
 
 
 
 
 
Under the POWER DATA display sub-menu, 
the MOTOR OVERLOAD (D2) value displays 
the accumulated percent of motor overload trip 
level reached.  Once this value reaches 100% 
the motor overload will trip and a motor 
overload alarm is declared by the drive.  

 
 
The drive will only declare a motor overload 
and the user is responsible for taking 
appropriate action to protect equipment.  
The motor overload alarm can also be 
assigned to a logic output.  See configuration 
sub-menu items, C3.

 

 
 
 
 
 
 
 
 
 
 

The drive can also be configured so that a 
motor overload event declares a Fault, which 
will automatically cause the drive to stop.  If 
this is desirable, the following needs to be 
completed: 

RUN/FAULT 

SUB MENU 

DATA ENT 

MOTOR OVERLOAD 

D2          100% 

•  logic output configured to MTR 

OVERLOAD 

•  logic input configured to EXT FAULT 

•  wire the EXT FAULT logic input terminal to 

the to MTR OVERLOAD logic output 
terminal 

•  wire the logic input common terminal to the 

logic output common  

With the above set-up, the drive will then 
declare an External Fault on a motor overload.

 

 

 

RUN/FAULT 

ALARM! 

MTR OVERLOAD 

SUB MENU 

DATA ENT