Watlow PPC-2000 - Manual (Page 175)

PPC-2000 User’s Guide Chapter 4: Troubleshooting
Doc.# 30002-00 Rev 2.3 Watlow Anafaze 149
• Green Status and Error 3 LEDs remains on: Indicates
two or more modules are set to the same address.
Corrective Actions:
Change the rotary switch settings so that each module has
a unique address. Refer to Module Addresses on page 17.
• Green Status LED remains off, on, or blinks
incorrectly: If analog input scanning is properly
functioning, the green LED blinks. If the LED remains off,
on, or blinks incorrectly, the module is not functioning.
Corrective Actions:
Make sure the rotary switch is set to the proper module ad-
dress. Each module must have a unique address.
Cycle power to PPC-2000 system.
Check that the modules are connected properly; refer to
Module Assembly on page 24.
Perform a RAM clear; refer to Resetting Closed-Loop
Control Parameters on page 156.
Replace module.
• LED indicators are OK but inputs are not seen: Some
or none of the wired input data is being transferred to the
system. This may be an indication of a software or
hardware problem.
Corrective Actions:
Check all interconnects (terminal blocks and SCSI con-
nector).
Check the input configuration in the AnaWin3 software.
Refer to Chapter 3, Software Setup for configuration infor-
mation. Incorrect sensor type or wrong channel setup
could be seen as incorrect data retention.