York YLCC-h Programmable key Fig, Copying the EEPROM memory on the key, Serial board RS485 Fig

Programmable key (Fig. 1)

Allows uploading and downloading the unit operating program by means of the user terminal keys. Proceed as follows:

Copying the key on the EEPROM memory of the unit 1.- Insert the key in the specific base plate connector.

2.- With the unit turned off, press and PRG keys simulta- neously.

3.- Holding these keys down, turn the system on.

4.- Once the copying process is over, the letters CE will ap- pear on the display.

Copying the EEPROM memory on the key

1.- Insert the key in the specific base plate connector.

2.- With the unit turned off, press and PRG keys simulta- neously.

3.- Holding these keys down, turn the system on.

4.- Once the copying process is over, the letters EC will ap- pear on the display.

Serial board RS485 (Fig. 2)

Allows connecting the system to a standard RS485 monitor- ing network. By means of the clip-switch system included, up to 199 units can be addressed. For installation, proceed as follows:

1.- Turn the unit off.

2.- Insert the RS485 board in the SERIAL connector of the base plate.

3.- When the serial line connection is being carried out, pay attention to the polarity indicated.

4.- The serial line should be closed by means of a 120 ohms

¼w resistance installed between terminals TX/RX + and TX/RX - of the board located at the end of the network.

BASE PLATE

KEY

KEY

G GO GND B1 GND B2 GND B3 24V	IDCOM ID1 ID2 ID3 ID4 ID5 ID6 ID7
3
2
1

P1 P2 P3 P4 P5

B1 B2 B4	B3	B5
1-2= NTC	1-2= NTC
2-3=ON/OFF	2-3= 4-20mA
RES.1		COMP.1	VALVE 1	PUMP ALARM

µP

SERIAL

GND Y1 NO C NO C NO C NC NO C NO C NC

P6

Fig. 1

RS485 serial board

TO THE RS485

MONITORING NETWORK

GND TxRx TxRx

4

3

2

1

ON OFF

TO BASE PLATE "SERIAL"

CONNECTOR

G GO GND B1 GND B2 GND B3	24V		IDCOM ID1 ID2		ID3	ID4 ID5 ID6	ID7
3
2
1
P1	P2	P3	P4	P5
B1 B2 B4			B3	B5
	1-2= NTC		1-2= NTC
2-3=ON/OFF			2-3= 4-20mA
		RES.1		COMP.1		VALVE 1	PUMP	ALARM
KEY
µP
SERIAL
GND Y1	NO	C	NO	C	NO	C NC	NO C	NO C NC

P6

RS485 SERIAL CONVERTER

120 W

Fig. 2

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