Introduction
Product Description
The PICO controller 2+2-2CH-V2 (two-channel) or 2+2-4CH-V2 (four-channel) is an electronic device used for the
timed control of the PICO
Toµch
controller. The PICO controller transmits electrionic signals in the form of pulse-
pause lines and pulse-pause blocks at a constant signal level for a variable (programmable) duration. These pulse
sequences directly affect the downstream devices.
The output pulse sequences consist of interlinked pre-programmed pulse-pause lines.
Variable parameters such as dispensing time, cycle duration, delay time, and number of pulses are entered via an
SD card. Data is stored on the SD card using an external PC.
Operating parameters can be changed locally at the PICO controller (within the limits specified in the PICO controller
program) by using the Menu dial and integral Enter key and the ESC (Escape) key, which are located on the front of
the PICO controller.
The PICO controller has a feature that calculates the fluid left in the container. Each dispensed amount is subtracted
from the original quantity of material in the container. When a customer-specified low-level limit is reached, a
message appears on the PICO controller display and a status signal is transmitted to a primary control device, such
as a programmable logic controller (PLC).
The controller is designed as a plug-in cassette for a 48.3-cm (19-in.) chassis. Pulse-pause signals are emitted via
two (optionally four) channels that work independently of one another. The control process (the beginning of the
control impulse output) performed by the PICO controller can be triggered by channel (for example, by the PLC, via
10 binary single signals, via CAN bus, or manually).
When the EMERGENCY OFF is actuated for a channel, the current dispensing pulse is either ended or stopped,
depending on the value set for the Stop parameter. Then, the transmission of additional control signals is
interrupted.
Intended Use
The electrical devices and machines described in this manual are intended for use in industrial systems.
The PICO controller is designed for operation via direct current of 24 VDC.
To ensure that the equipment functions properly, has a long service life, and complies with the intended use, the
operating conditions and instructions specified in this manual must be observed.
Applicability of this Manual
This operating manual applies only to the PICO controller 2+2-XCH-V2 (hereinafter only referred to as the PICO
controller) as of
• Hardware release 2.0 and software release 2.0
The current software and hardware versions are shown under the PICO controller’s System Data menu option.
PICO Controller 2+2-XCH-V2
4
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+1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
