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Parameter sets
7-1-1
One motor and one parameter set
7-1-2
One motor and two parameter sets
7-1-3
Two motors and two parameter sets
7-1-4
Autoreset at trip
Manual - automatic control
If in an application something is filled up manually and then the level is auto-
matically controlled using PID regulation, this is solved using one parameter
set for the manual control and one for the automatic control.
This is the most common application for pumps and fans.
Once default motor M1 and parameter set A have been selected:
1. Enter the settings for motor data.
2. Enter the settings for other parameters e.g. inputs and outputs
This application is useful if you for example have a machine running at two dif-
ferent speeds for different products.
Once default motor M1 is selected:
1. Select parameter set A in menu [241].
2. Enter motor data in menu [220].
3. Enter the settings for other parameters e.g. inputs and outputs.
4. If there are only minor differences between the settings in the parameter
sets, you can copy parameter set A to parameter set B, menu [242].
5. Enter the settings for parameters e.g. inputs and outputs.
Note Do not change motor data in parameter set B.
This is useful if you have a machine with two motors that can not run at the
same time, such as a cable winding machine that lifts up the reel with one
motor and then turns the wheel with the other motor.
One motor must stop before changing to an other motor.
1. Select parameter set A in menu [241].
2. Select motor M1 in menu [212].
3. Enter motor data and settings for other parameters e.g. inputs and outputs.
4. Select parameter set B in menu [241].
5. Select M2 in menu [212].
6. Enter motor data and settings for other parameters e.g. inputs and outputs.
For several non-critical application-related failure conditions, it is possible to
automatically generate a reset command to overcome the fault condition. The
selection can be made in menu [250]. In this menu the maximum number of
automatically generated restarts allowed can be set, see menu [251], after
this the VSD will stay in fault condition because external assistance is
required.
Example
The motor is protected by an internal protection for thermal overload. When
this protection is activated, the VSD should wait until the motor is cooled down
enough before resuming normal operation. When this problem occurs three
times in a short period of time, external assistance is required.
The following settings should be applied:
•
Insert maximum number of restarts; set menu [251] to 3.
•
Activate Motor I
2
t to be automatically reset; set menu [25A] to 300 s.
Section 7-1
55
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