
5-10
The GPD Drive allows selection of up to twenty frequency references. One is an analog input
(terminal FR), sixteen are digital presets (selected with multi-function inputs), one is a jog input, one
is a pulse train input, and one is via serial communications (MODBUS).
A.
Frequency Reference via Analog Input
In order to set the GPD Drive so the frequency reference comes from the analog input, set
parameter n004 as shown in the table below:
(1)
SW2 consists of two separate slide switches and can be found just above the upper row of control circuit terminals.
The switch towards the bottom (labeled “2”) connects a 250
Ω
resistor from terminal FR to FC when set to the “on”
position (to the right). NOTE: All power must be removed from the GPD 315 before SW2 can be set.
B.
Frequency Reference via Digital Presets
In order to set the GPD Drive so the frequency reference comes from the digital presets, the
following parameters need to be set:
Depending upon how many preset references are required determines the actual settings of n050
thru n056. Several examples are listed below.
PARAMETER
SETTING
DESCRIPTION
n024
User
thru
Set
Eight Frequency References
n031
n050
6, 7, 8,
Sets the multi-function inputs so selection of the various references is
thru
and/or
possible with contact closures.
n056
9
n120
User
thru
Set
Eight More Frequency References
n127
PARAMETER
SETTING
DESCRIPTION
2
Sets terminal FR for a voltage input (0 to 10V) Set SW2 switch 2 to Off
(1)
n004
3
Sets terminal FR for a current input (4 to 20mA) Set SW2 switch 2 to On
(1)
4
Sets terminal FR for a current input (4 to 20mA) Set SW2 switch 2 to On
(1)
5.11 FREQUENCY REFERENCE SELECTION
Summary of Contents for GPD 315
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