Vacon 20, Complete User'S Manual

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parameter descriptions vacon
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9
9.7 Pulse train / Encoder (Control panel: Menu PAR -> P7)
7.1 M
IN PULSE FREQUENCY

7.2 M
AX PULSE FREQUENCY
Minimum and maximum pulse frequency correspond to a signal value of 0% and
100% respectively. Frequencies over Max pulse frequency are handled as constant
100% and below Min pulse frequency as constant 0%. The signal value of range 0 -
100% is shown in monitor value V2.7 and can be used as PID Controller feedback, or
scaled to frequency with parameters P7.3 and P7.4, and used as frequency reference.
7.3 F
REQ REF AT MIN PULSE FREQUENCY

7.4 F
REQ REF AT MAX PULSE FREQUENCY
Pulse train/Encoder signal with range 0-100% and scaled by parameter P7.1
and P7.2, which can be used as frequency reference by telling what frequency
corresponds to 0% and 100% with parameters P7.3 and P7.4 respectively.
Then it can be selected as frequency reference for Remote control place.
7.5 E
NCODER DIRECTION
It is possible to also take direction information from the encoder.
0 = Disable
1= Enable/Normal
2 = Enable/Inverted
7.6 E
NCODER PULSES
/
REVOLUTION
Encoder pulses per revolution can be set in case an encoder is used, which is
used to record the count of encoder per round. In this case monitor value V2.8
will show the actual rpm of the encoder.
Maximum pulse frequency is 10 kHz. It means that a 256 pulse per round en-
coder would allow shaft speeds up to 2300 rpm. (60*10000/256 = 2343)
7.7 C
ONFIG
DI5
AND
DI6
0 = DI5 and DI6 are for normal digital input
1 = DI6 is for pulse train
2 = DI5 and DI6 are for encoder frequency mode
When using pulse train / encoder input, the DI5 and
DI6 has to be set to - Not Used
Note! If use the encoder function have to do 2 steps:

1) Set the parameter to change normal DI to Encoder in menu firstly.

2) Then push down the DI switch for encoder function.

otherwise F51 occur.