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M’Ax Advanced User Guide 10
Issue Number: 4 www.controltechniques.com
0: Reference selection by terminal input
The reference selected depends on the state of bit parameter [1.42]to[1.44]. These bits are for control by digital inputs such that reference
can be selected by external control. If any of the bits are set, the appropriate reference is selected (indicated by parameter [1.49]).Ifmore
than one bit is set the highest numbered will have priority.
X = 0 or 1 (don't care condition)
1 or 2: Analog Reference
The speed reference is selected from the standard (SL)orhighprecision(AN) analog voltage input.
3: Preset reference selected
The reference is one of the four preset speeds, refer to parameters [1.15]and[1.21]to[1.24] for further details.
4: Keypad reference selected
The drive is controlled via keypad (Parameter [1.17]or[0.34])
5: Pulse reference selected
F&D/quadrature reference selected.
Parameter [1.15] selects a preset speed reference as follows:
0 = Preset select by terminal input
1 = Preset 1 selected [1.21]
2 = Preset 2 selected [1.22]
3 = Preset 3 selected [1.23]
4 = Preset 4 selected [1.24]
0: Preset selection by terminal input
The preset selected depends on the state of bit parameter [1.45]to[1.46]. These bits are for control by digital inputs such that presets can be
selected by external control. The preset selected depends on the binary code generated by these bits as follows:
Version _AN -[0.34]or[1.17] indicates the value of the speed reference set by use of the keypad.
Version _SL -[0.34]or[1.17] is not used.
If this parameter is selected as the frequency reference (i.e. [1.49]=4),itisadjustedbythe'Up'and'Down'keysonlywhenthedisplayisin
the Status Mode. When the drive is not enabled view the keypad reference by looking at parameter [0.34]or[1.17] to ensure the correct value
is set before enabling the drive.
The value is saved on power down such that the keypad frequency reference does not have to be set up again on power up.
1.42 Preset-
reference
selected indicator
1.43 Keypad-
reference
selected indicator
1.44 Pulse-
reference
selected indicator
Reference
selected
1.49 Indication
parameter
000Analog1
100Preset3
x 1 0 Keypad 4
xx1Pulse5
1.15 Preset reference selector
ô
0~4
ð
0 RW Uni P
Parameter [1.45] Parameter [1.46] Preset selected [1.50]
00 1
10 2
01 3
11 4
1.17 Keypad reference
ô
±Pr1.06
ð
rpm RO Bi S P 0.34
1.21 Preset reference 1
ô
±Pr1.06
ð
1rpmRWBi 0.33
1.22 Preset reference 2
ô
±Pr1.06
ð
10 rpm RW Bi
1.23 Preset reference 3
ô
±Pr1.06
ð
100 rpm RW Bi
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