11
OPTIONAL PRINTER INSTALLATION
The microprocessor is capable of supplying a printout of
chiller conditions or fault shutdown information at any
given time. In addition, to the manually selected
printouts the microprocessor will provide an automatic
printout whenever a fault occurs. An explanation of the
print function is given Section 5 under the Display/Print
Keys.
If the RS232 (TB3) printer port does not work check the
following. Press PROGRAM, DOWN ARROW, DOWN
ARROW, DOWN ARROW, DOWN ARROW, ENTER
keys in turn. Then repeatedly press the ENTER key and
check the following settings: P2 PROTOCOL API, P2
BAUD RATE 1200, P2 PARITY NONE, P2 HW SELECT
BIT RS-232. If necessary use the DOWN ARROW key
to set the correct value, then press the ENTER key.
Power down then power-up the unit.
The Printer option is not available if the
Modbus feature is being used.
YORK offer a kit which includes a printer which has an
internal Ni-cad battery, a roll of paper, a 'D' type
connector, one metre lead and a charger. This is a
compact low cost printer that is ideal for service work
and data logging.
Paper is in the form of a compact roll and is easily
handled compared to larger printers using wider
business form style paper. The paper is 58 mm wide
desktop calculator paper that can be easily and
inexpensively purchased at most stationery stores.
11.1 Installation Limitations
The following limitations must be adhered to.
Failure to do so may result in improper printer
and/or chiller operation.
n
Maximum cable length between the printer and the
Microprocessor Board is 7.5 m. Twisted pair
shielded cable is required (1 m with optional
printer).
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Serial printer should be set for data bits = 8 parity =
none and baud rate = 1200.
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The printer may be left connected to the
microprocessor panel.
11.2 Parts
The following parts are required:
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Printer kit, YORK part number:
362L11330-002 UK
362L11330-003 EUROPE
The printer must be set up by customer as
detailed using the operator guide supplied
with printer.
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58 mm wide desk top calculator paper.
One roll included in kit.
Extra roll part no. 025L01992-000
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Spare Ink Ribbon YORK part number:
025L01993-000
11.3 Assembly and Wiring
All components should be assembled and wired as
shown in below. Strip the outer insulation back several
centimetres and individual wires 10 mm to connect the
cable at the microprocessor board (TB2). Do not
connect the shield at the printer-end of the cable.
11.4 Using Other Printers
Control codes vary from printer to printer. This may
result in unusual formatting of printed data from many
printers. In addition, 'handshaking' lines and
'handshaking' sequence will differ between printers.
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37
Form 201.26.OI1(11/09)
RTS
CTS
TXD
RXD
GND
BLK
RD
WHT
+5V
20 DTR
3 RXD
7 GND
AMB
TB2
Printer
25 Pin 'D' Type
(Male) Connector
Screen
AMB TB3
Function
Printer
TXD
Serial data to printer
RXD
Busy signal from printer
(high to accept data)
GND
Signal ground to printer
GND
White (WHT)
Black (BLK)
Cable colours with York Supplied printer option
Red (RD)
CTS
DTR
