Troubleshooting Analogue Input Sensor Failures; Troubleshooting Communication - Deif GPC 300 Operator's Manual

13.3 Troubleshooting analogue input sensor failures

Alarm range
Below range alarm
Above range alarm

13.4 Troubleshooting communication

Problem
DEIF network
redundancy broken
The display unit is stuck
on the start screen,
displaying the text DL
mode
Pair to controller is lost
OPERATOR'S MANUAL 4189341171C UK
Analogue input type
Current
Voltage
Resistance
Current
Voltage
Resistance
Cause
The system never had a redundant DEIF Ethernet
network connection.
The existing redundant DEIF network connection is
unplugged or damaged.
• The power supply is too small to fully power the
display unit, resulting in an incomplete start up.
• The Ethernet cable is loose.
• The display unit software is corrupt after an
incomplete start up.
Display unit power was disconnected and
reconnected.
Possible root cause
Wire break
High resistance
Wire break
Short circuit to ground
Short circuit
Short circuit
Short circuit to supply
Wire break
Solution
1. Install a redundant DEIF Ethernet network
connection (see Wiring the communication in
the Installation instructions).
2. Configure the DEIF network redundancy to Not
enabled in the parameter:
Configure > Parameters >
Communication > DEIF network >
DEIF network redundancy broken
.
1. Plug in the Ethernet cable correctly.
2. Replace the Ethernet cable.
3. Make sure the Ethernet cable meets the
specifications (see Hardware, Accessories,
Ethernet cable in the Data sheet).
1. Check the Ethernet cable.
2. Update the display unit software.
3. Remove the power, wait for at least 10
seconds, then restart the display unit.
4. Ensure that the power supply is sufficient.
5. If the problem persists, contact DEIF.
A pairing section screen is automatically shown on
the display unit:
1. Select the controller you wish to pair, and press
OK .
2. You are now prompted to confirm your
selection.
• Press OK to confirm.
• Press Back to cancel.
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