Precision Digital PD6310 - Manual (Page 91)

Model PD6210 & PD6310 Batch Controllers Instruction Manual
91
Troubleshooting Tips
Symptom Check/Action
No display at all Check power at power connector
Not able to change setup or
programming, Locd is displayed Controller is password-protected, enter
correct six-digit password to unlock
Controller displays error message
during calibration (Error) Check:
1. Signal
connections
2. Input selected in
Setup
menu
3. Minimum input span requirements
Controller displays
999999
-99999
Check:
1. Input
selected in
Setup
menu
2. Corresponding signal at Signal
connector
Display is unstable Check:
1.
Input signal stability and value
2. Display scaling vs. input signal
3. Filter and bypass values (increase)
Display response is too slow Check filter and bypass values
Display reading is not accurate 1. Signal input conditioning selected:
Linear, square root, etc.
2. Scaling or calibration
Display does not respond to input
changes, reading a fixed number Check:
Display assignment, it might be
displaying max, min, or set point.
Display alternates between
1. Hi and a number
2. Lo and a number
Press Menu to exit max/min display
readings.
Relay operation is reversed Check:
1.
Fail-safe in Setup menu
2. Wiring of relay contacts
Relay and status LED do not
respond to signal Check:
1. Relay
action in
Setup
menu
2. Set and reset points
Flashing relay status LEDs Relays in manual control mode or relay
interlock switches opened.
Controller not communicating with
application programs Check:
1.
Serial adapter and cable
2. Serial settings
3. Controller address and baud rate
If the display locks up or the
controller does not respond at all Cycle the power to reboot the
microprocessor.
Other symptoms not described
above Call Technical Support for
assistance.
Note: Certain sequences of events can cause unexpected results. To solve these
issues, it is best to start fresh from factory defaults and map changes ahead of
time, rather than at random.