CLS200 Series User’s Guide
Chapter 10: Specifications
169
Analog Outputs
Analog outputs may be accomplished by using Dual DAC or Serial DAC modules in conjunction
with the digital outputs. Contact your supplier or Watlow for more information on these accessory
products.
Digital Outputs
Table 10.17
—
Digital Outputs Control / Alarm
PARAMETER
DESCRIPTION
Number
35 via TB50 and/or SCSI option, 13 via TB18
Operation
Open collector output,
ON
state sinks to logic common
Function
34 Outputs selectable as closed-loop control or alarm/control.
1 global alarm output
Number of Control Outputs per
PID Loop
2 (maximum)
Control Output Types
Time proportioning, distributed zero crossing, Serial DAC or on/off.
All independently selectable for each output. Heat and cool control
outputs can be individually disabled for use as alarm outputs.
Time Proportioning Cycle Time
1 to 255 seconds, programmable for each output.
Control Action
Reverse (heat) or direct (cool), independently selectable for each
output
Off State Leakage Current
<0.01mA to dc common
Maximum Current
60mA for each output. 5V power supply (from the processor module)
can supply up to 350mA total to all outputs.
Maximum Voltage Switched
24VDC
Table 10.18
—
CPU Watchdog Output
PARAMETER
DESCRIPTION
Number
1
Operation
Open collector output,
ON
state sinks to logic common
Function
Monitors the processor module microprocessor
Maximum Current
10mA (5V power supply in the processor module can supply up to
350mA total to all outputs)
Maximum Voltage Switched
5VDC
Table 10.19
—
5VDC Output (Power to Operate Solid-State Relays)
PARAMETER
DESCRIPTION
Voltage
5VDC
Maximum Current
350mA
