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PACMotion VFD AC Variable Speed Drive User Guide
GFK-3111A
Control Terminal Functions
For standard applications and operation, the basic control of the drive and functions of all drive input
terminals can be configured using just two parameters, P1-12 and P1-13. P1-12 is used to define the source
of all control commands and the primary speed reference source. P1-13 then allows fast selection of Analog
and Digital Input functions based on a selection table.
Control Source Selection
P1-12 Function
P1-12 is used to select the main control source of the drive and the main speed reference according to the
following table:
Table 26: P1-12 Function
P1-12 Function
Control Source Main Speed Ref Notes
0
Terminal
Control
Terminals
Analog Input 1 All control signals are applied to the control terminals.
Functions are determined by P1-13 Macro setting.
1
Keypad Control
(Uni-directional)
Keypad /
Terminals
Motorised Pot /
Keypad
When keypad mode is selected, the default operation of
the drive requires the keypad Start & Stop buttons are used
to control the drive. This can be changed using P2-37 to
allow the drive to be started from Digital Input 1 directly.
2
Keypad Control
(Bi-directional)
Keypad /
Terminals
Motorised Pot /
Keypad
3
PID Control
Terminals
PID Output
Enable / Disable control of the drive is through the drive
control terminal strip.
Output frequency is set by the output of the PI Controller.
4
Fieldbus /
Modbus RTU
Modbus RTU
Fieldbus /
Modbus RTU
Control of the drive operation is through a fieldbus
option module mounted in the drive option slot. If no
option module is fitted, control is through the Modbus
RTU interface.
Digital Input 1 must be closed to allow operation.
5
Slave Mode
Master Drive
From Master
PACMotion VFD provides an inbuilt Master / Slave function.
A single drive acts as the Master, and connected Slave
drives will mimic the starting and stopping, along with
following the output frequency, with any scaling applied.
Digital Input 1 must be closed to allow operation.
6
CANopen
CAN bus
CAN bus
Control of the drive operation is through the CAN Open
Interface.
Digital Input 1 must be closed to allow operation.
Overview
PACMotion VFD uses a Macro approach to simplify the configuration of the Analog and Digital Inputs. There
are two key parameters which determine the input functions and drive behaviour:
• P1-12 – Selects the main drive control source and determines how the output frequency of the drive is
primarily controlled.
• P1-13 – Assigns the Macro function to the analog and digital inputs.
Additional parameters can then be used to further adapt the settings, e.g.
• P2-30 – Used to select the format of the analog signal to be connected to analog input 1, e.g. 0 – 10 Volt,
4 – 20 mA.
• P2-33 – Used to select the format of the analog signal to be connected to analog input 2, e.g. 0 – 10 Volt,
4 – 20 mA.
• P2-36 – Determines whether the drive should automatically start following a power on if the Enable Input
is present.
• P2-37 – When Keypad Mode is selected, determines at what output frequency / speed the drive should
start, following the enable command, and also whether the keypad start key must be pressed or if the
Enable input alone should start the drive.
The following diagrams and tables provide an overview of the functions of each terminal macro function, and
a simplified connection diagram for each.
