Carrier HS070-160 manual MoN

On the sensor bus terminal strips, terminal 1 of the PSI0 module is connected to terminal 1 of each of the other modules; terminals 2 and 3 are connected in the same manner. (See Fig. 13.) If a terminal 2 wire is con- nected to terminal 1, the system will not work.

in the 30HK,HS units, the processor module, low- voltage relay module, and keyboard! display module are all powered from a common 21 vat power source which connects to terminals 1 and 2 on the power input strip of each module. A separate source of 12.5 vat power is used to power the EXV driver module through terminals 1 and 2 on the power input strip.

PSI0DSIODSIOHSIO

(RELAY) (EXV DRIVER)

Fig. 13 - Sensor Bus Wiring

Processor Module (PSIO) (Fig. 14.)

Inputs - Each input channel has 3 terminals; only 2 of the 3 terminals are used. The application of the machine determines which terminals are used. Always refer to the individual unit wiring for terminal numbers.

Outputs ~ Output is 24 vdc. Again, there are 3 terminals, only 2 of which are used; which 2 depends on the appli- cation. Refer to unit wiring diagram.

NOTE: Both address switches must be set at zero.

b CHASS IS G R O U N D

mm* 0

-r-awe4- (REAR1

N E T W O R K

sfNNECTOR

	‘(FORWARD)
ADDRESS ’ 0	SENSOR BUS
	58” NECToR
SW trcnEs --l
0
PSI0

Low-Voltage Relay Module (DSIO) (Fig. 15.)

r#2j?2rt.s - - Inputs on strip .J3 arc discrcti: inputs (ON- OFF). When 24 vat are applied itcross the 2 tcrminah in a channel it is read as an ON signal, Zero vnl$s is read as an OFF signal.

0ulput.s - Terminal strips 54 and .J5 are internal relays

whose coils are powered-up and powered-off by a signal from the microprocessor. The relays switch the circuit to

which they are connected. No power is supplied to these connections by the DSIO module.

S E N S O R B U S C O N N E C T O R

/

INPUTS	: 24	VAC
+		+
CHANNEL I - J3 PINS 18 2
	2 -		3 8 4
I	3 -	I 586
	4 -		788

2,4,6 88 ARE GROUND (C1

COMMON

C H A N N E L

Is

%fMoN

,%~MON

&MON

1:

C%MoN

C&MON

K

C O M M O N

NO

C&MON

3

ADDRESS ADJUSTMENT

I(NOT SHOWNI ON UNDERSIDE.

Fig, 15 - Low-Voltage Relay Module (DSIO)

Fig. 14 - Processor Module (PSiO)

24