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As a policy of continual improvement, STAUFF reserves the right to alter the specification without prior notice.
201.031
Date of Issue: 06 November 2018
6.1.2 Electrical Interface
A separate LPM-USBInterface product is available for those wishing to have a simple plug and play
solution providing connection of the LPM to a computer. This section is for those wishing to do their own
wiring to the product.
6.1.2.1 Electrical Connectors
The LPM has two circular connectors located on the lower face of the unit. The USB Interface product
can be connected to either one depending on the installation configuration, see figure 6.1.
Pin
Colour
“Machine” Connector
“Remote” Connector
1
Yellow
RS485+/CANL/4-20mA(A)
RS485+
2
Pink
START INPUT
3
Green
RS485-/CANH/4-20mA(B)
RS485-
4
White
OUTPUT 1
5
Grey
I/O COMMON
6
Brown
OUTPUT 2
7
Blue
DC 0V
DC 0V
8
Red
DC +POWER
DC +POWER
6.1.2.1.1 Remote Connector
The “remote connector” is intended for temporary connection of an external communication device e.g.
LPMUSBInterface so as to allow data download, remote control or diagnostics using the LASPAC-View
software.
This is the circular connector furthest from the hydraulic connection, see figure 6.1.
This carries RS485 data and can also be used to power the unit temporarily in the event of a system
being shut down, thus no longer providing power to the unit.
This connector doesn’t send alarm signals as shown in the wiring diagram 6.7. If you require a USB
Interface to send alarm signals it has to be connected to the machine connector.
6.1.2.1.2 Machine Connector
The “machine connector” is intended for permanent connection to the PLC / machine that powers the
LPM during normal operation. It has power connections, a start signal input, two relay outputs, and a
data pair that can be set to RS485, CANbus or 4-20mA signaling modes.
This is the circular connector closest to the hydraulic connection, see figure 6.1.
NOTE: If CANBUS or 4-20mA option has been selected, standard communication with an RS485
adapter (e.g. USB Interface) on this port is no longer available.
The right hand port (remote connector) should be used if temporary connection is required.
NOTE: Start signal and relay outputs only apply to this connector.