Instruction Manual

Chapter 4: Troubleshooting PPC-2000 User’s Guide
152 Watlow Anafaze Doc.# 30002-00 Rev 2.3
PPC-2050 Analog Out
Refer to the following descriptions of LED indicators when
troubleshooting the analog output module.
• Green Status LED remains off, on, or blinks
incorrectly: When the module is correctly functioning the
green LED blinks. If the LED remains off, on, or blinks
incorrectly, the module may not be functioning correctly.
Corrective Actions:
Make sure the rotary switch is set to the proper module
address. 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 the module.
• Green Status LED is blinking but outputs are not
functioning correctly:
Corrective Actions:
Check to make sure the I/O wiring is correct. See Con-
necting Analog Outputs to the PPC-205x on page 67.
Check that the jumpers are set correctly. See
PPC-205x Jumper Settings on page 22.