Watlow 8LS Controller - Manual (Page 26)

18 8LS User’s Guide
Installation
Terminal Block And Connector Layout
The 8LS terminal blocks and connectors are assigned according to the
following two pages. Subsequent sections provide detailed connection
descriptions.
Communications Terminal Block 4
1 2 3 4 5 6
COM Rx COM Tx RS-232 Connections
Terminal
Analog COM
Ana In 1-
Ana In 2-
Ana In 3-
Ana In 4-
Ana in 5-
Ana in 6-
Ana In 7-
Ana in 8-
Analog COM
Dig In 10
Logic COM
Analog COM
Ana In 1+
Ana In 2+
Ana In 3+
Ana In 4+
Ana In 5+
Ana In 6+
Ana In 7+
Ana In 8+
Analog COM
Dig In 9
Dig In 11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PID 1 Out +
PID 3 Out +
PID 4 Out +
PID 6 Out +
PID 7 Out +
Pulse In +
Dig In 12
Dig Out 1
Dig Out 2
Dig Out 3
Dig Out 4
Global
Logic COM
+ PID 2 Out
Logic COM
+ PID 5 Out
Logic COM
+ PID 8 Out
Logic COM
Logic COM
Logic COM
+5 Vdc
+5 Vdc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Terminal
1 2
49 50
50 Pin
Conn
Red marker on flat ribbon cable
Alarm Out
Terminal block 3
1 2 3
Chas
Gnd AC AC
HOT
Chas Gnd
Block 2 Block 1
R
I
B
B
O
N
(green) (white) (black)
Neutral
SHLD
RS-485 Connections Rx- Rx+ Tx- Tx+
Jumper*
* It is suggested with noisy electrical environments, a heavy gauge jumper wire be con-
nected between the chassis ground and shield terminals on the rear terminal block as
shown.