User`s guide

Chapter 2: Installation Series D8 User’s Guide
36 Watlow Anafaze Doc. 0600-3120-2000
Functions Activated by Digital Inputs
Use digital inputs to activate the following functions:
• Load a job that is stored in controller memory. See BCD
Job Load on page 126.
• Change all loops to manual mode at specified output lev-
els. See Mode Override on page 127.
• Enable thermocouple short detection. See Thermocouple
Short Alarm on page 129.
• Restore automatic control after a failed sensor has been
repaired. See Restore Automatic Mode on page 138.
TB18 Connections
Table 2.6 TB18 Connections
1
The indicated outputs are dedicated for control when enabled in the
loop setup. If one or both of the outputs are disabled for a loop, then the
corresponding digital outputs become available for alarms.
2
If you install a Watlow Anafaze Serial DAC, the D8 series controller
uses digital output 18 (terminal 15) for a clock line. You cannot use out-
put 18 for anything else if a Serial DAC is installed.
Control Output
1
Terminal Function D84 _ - _ _ _ _ - _ _ _ _ D88 _ - _ _ _ _ - _ _ _ _
1 +5 Vdc
2 CTRL COM
3 Watchdog timer
4 Global alarm
5 Output 1 Loop 1 heat Loop 1 heat
6 Output 2 Loop 2 heat Loop 2 heat
7 Output 3 Loop 3 heat Loop 3 heat
8 Output 4 Loop 4 heat Loop 4 heat
9 Output 5 Loop 1 cool Loop 5 heat
10 Output 6 Loop 2 cool Loop 6 heat
11 Output 7 Loop 3 cool Loop 7 heat
12 Output 8 Loop 4 cool Loop 8 heat
13 Output 9 Loop 1 cool
14 Output 10 Loop 2 cool
15
Output 18
2
Serial DAC clock Serial DAC clock
16 Input 1
17 Input 2
18 Input 3