Siemens Micromaster 420 Operating Instruction page 68

International English
Parameter
Number
P1001 Fixed frequency 1
Defines fixed frequency setpoint 1
How to use fixed frequencies;
To use fixed frequencies it is necessary to select fixed frequency operation using P1000.
Fixed frequencies can be selected using the digital inputs, and can also be combined with
an ON command.
There are three types of Fixed Frequencies.
1) Direct selection
2) Direct selection + ON command
3) Binary Coded selection + ON command
1. Direct selection (P0701 – P0703 = 15)
In this mode of operation 1 digital input selects 1 fixed frequency. If several inputs are
active together, the selected frequencies are summed. E.g. (FF1 + FF2 + FF3).
Note:
An ON command is also required to start the inverter e.g. from keypad or serial link etc.
2. Direct selection + ON command (P0701 – P0703 = 16)
This fixed frequency selection combines the fixed frequencies with an ON command.
In this mode of operation 1 digital input selects 1 fixed frequency. If several inputs are
active together, the selected frequencies are summed. E.g. (FF1 + FF2 + FF3).
3. Binary Coded Selection + ON command (P0701 – P0703 = 17)
Up to 7 fixed frequencies can be selected using this method. The fixed frequencies are
selected according to the following table:
P1001
P1002
P1003
P1004
P1005
P1005
P1007
P1002 Fixed frequency 2
Defines fixed frequency setpoint 2
See description for P1001
P1003 Fixed frequency 3
Defines fixed frequency setpoint 3
See description for P1001
68
Parameter Name
DIN3
OFF Inactive
FF1 Inactive
FF2 Inactive
FF3 Inactive
FF4 Active
FF5 Active
Active
FF6
FF7 Active
5. SYSTEM PARAMETERS
DIN2 DIN1
Inactive Inactive
Inactive Active
Active Inactive
Active Active
Inactive Inactive
Inactive Active
Active
Inactive
Active Active
MICROMASTER 420 Operating Instructions
♦ ♦ ♦ ♦ P0003 User
Min
Access Level
Max
♦ ♦ ♦ ♦ P0004 Setting
[Default]
♦ ♦ ♦ ♦ Changeable
Units
♦ ♦ ♦ ♦ Status
-650 2
650 10
[0] ' • '
Hz
-650 2
650 10
' • '
[5]
Hz
-650 2
650 10
[10] ' • '
Hz
6SE6400-5AA00-0BP0