185
Programmable Hardware Manual (PHM)
© Tibbo Technology Inc.
Relays
The SB1005 have 6 mechanical relays. These relays are rated for
30VDC/16A or 250VAC/15A. If your load is inductive in nature, then the actual
power the relays can handle may be several times lower.
Relay outputs
Relay outputs are on terminal blocks 3 and 4. Both normally closed and normally
opened lines are provided for each relay.
For terminal block 3:
Terminal #
Function
9
Relay 3, normally closed line
8
Relay 3, normally opened line
7
Relay 3, common line
6
Relay 2, normally closed line
5
Relay 2, normally opened line
4
Relay 2, common line
3
Relay 1, normally closed line
2
Relay 1, normally opened line
1
Relay 1, common line
For terminal block 4:
Terminal #
Function
9
Relay 6, normally closed line
8
Relay 6, normally opened line
7
Relay 6, common line
6
Relay 5, normally closed line
5
Relay 5, normally opened line
4
Relay 5, common line
3
Relay 4, normally closed line
2
Relay 4, normally opened line
1
Relay 4, common line
Relay control
Six lines of the
(located on the
network board) control the relays.
On power up, all EM1000 lines are configured as inputs and pulled up internally,
keeping relays off. To turn the relay on, set the corresponding control line LOW.
Naturally, each relay line must be configured as output.
For all relay control lines:
HIGH (our input*) - relay off
LOW - relay on
Line
Function
Corresponding
EM1000 I/O
IC1000 cable
line