Watlow CPC400 - Manual (Page 51)

CPC400 Series User’s Guide Chapter 2: Installation
Doc. 0600-2900-2000 Watlow Anafaze 37
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 97.
• Change all loops to manual mode at specified output
levels. See Mode Override on page 99.
• Enable thermocouple short detection. See Thermocou-
ple Short Alarm on page 101.
• Restore automatic control after a failed sensor has been
repaired. See Restore Automatic Mode on page 114.
TB18 Connections
Table 2.5 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 or program-
mable logic.
2 If you install a Watlow Anafaze Serial DAC, the CPC400 series control-
ler uses digital output 34 for a clock line. You cannot use output 34 for
anything else if a Serial DAC is installed.
Control Output
1
Terminal Function CPC404 CPC408
1 +5V Î (dc)
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 Pulse loop heat Loop 5 heat
10 Output 6 Loop 1 cool Loop 6 heat
11 Output 7 Loop 2 cool Loop 7 heat
12 Output 8 Loop 3 cool Loop 8 heat
13 Output 9 Loop 4 cool Pulse loop heat
14 Output 10 Pulse loop cool Loop 1 cool
15 Output 34 2 Serial DAC clock Serial DAC clock
16 Input 1
17 Input 2
18 Input 3/Pulse input