The Series 555 is a sophisticated programmable
control platform optimized for use in industrial applications. The
controller can currently be purchased a 128 x 128 graphic Liquid Crystal
Display (LCD). In the future, you will be able to purchase a version with
a 4 x 20 Vacuum Fluorescent Display (VFD). The VFD version, model number
Series 555V, has a wider temperature range while the LCD version, model
number Series 555, allows for more creative screen displays.
Inputs
16 –
Optically Isolated Digital Inputs.
10 –
12 bit analog inputs configurable for 0-5 VDC, End of Line 4-20 mA,
and electric gauge sender. The sender configuration can measure up to 1250
ohms with 4 mA of current and 250 ohms with 20 mA of current.
Loop
power must be above 10 VDC.
1 –
Battery
voltage monitor input.
1 – Frequency Pickup for
engine speed monitoring. (1.5VAC RMS to 140 VAC RMS)
Outputs
14 –
Transistor Outputs - sinking (ground out) - outputs are rated 140
mA @ 85 °C with all outputs ON. Each of these outputs has a 300 mA
current limit / over-temperature shutoff protection feature. NOTE: If more
current is required, the unit can be programmed to turn on two outputs
simultaneously and the current capability will be doubled. Just hook your
load to both outputs.
2 – Dedicated auto
throttle outputs – sinking (ground out) – 500 ma @ 85 °C.
These outputs have a 2 Amp current limit / over-temperature shutoff
protection feature.
2 – B+ outputs – 2 Amps
@ 85 °C. These outputs have a 5 Amp current limit / over-temperature
shutoff protection feature.
1 – TATTLETALE® output
– 125 mA @ 85 °C. This output does NOT have a current limit /
over-temperature shutoff protection feature.
2 – 12-bit 0-24 ma analog
outputs.
2 – Pulse Width Modulation
Outputs – 125 mA @ 85 °C. These outputs do NOT have a current limit /
over-temperature shutoff protection feature.
Communication
2
– RS-485 Communication
ports. Connection is made via
modular RJ45 Jack. There are
two jacks for simple connection to a chain of devices including the Murphy
Comm Series of I/O modules. If the SERIES 555 is at one end of an RS-485
chain, it must have a terminating resistor installed in the second jack.
This resistor module is available from Murphy as part number
65267485TERMM.
2
– RS-232 Communication
ports. Connection is made via
modular DB-9 connectors.
1
– CAN Port using J1939
Communication Protocol.
Temperature Rating
Operating -20 to +70 °C (LCD Version)
Storage -30 to +70 °C (LCD Version)
Operating -40 to +85 °C (VFD Version)
Storage -40 to +85 °C (VFD Version)
Power Input Voltage
9 to 28 VDC
User Interface
The LCD version has the Murphy standard 3-button
interface, which utilizes UP, DOWN, and SELECT keys for moving through the
screens and setup numbers. It also has 3 “soft keys” that are tied to
specific screen labels. These labels are under software control. When the
user presses a “soft key” it will perform the function specified on
the label.
The Series 555V offers a complete numeric keypad for
direct entry of set-point values and S-number configuration.
Series 555 Port Descriptions
The Series 555 has 6 ports and one power plug. The
port descriptions follow:
Port 1
RS485 (2 – RJ45 Jacks)
2 wire
RS-485 communications. The
table shows the pin connections. Note: Both Jacks are wired the same and
pins 4 and 5 on each jack are wired together.
