WEMPE 20804/IP - User Manual

Questions and Answers

L
Lisa DavisAug 14, 2025
Why does the WEMPE 20804/IP Clock green LED "State" blink continuously and the red LED "Error" show single or double flashing?
- D
  Devin CampbellAug 14, 2025
  This indicates a communication failure to the masterclock. Verify that the ENI V1 compatibility is correctly configured (refer to chapter 1.3.2 for setting the protocol version). Ensure the IP addresses of the ENI and masterclock reside within the same IP subnet or VLAN. If using dynamic VLAN, confirm that the Announce protocol is enabled via the ENI's web interface Configuration page. Check for any firewall or routing device blocking features between the ENI and masterclock. Verify the packet route between the ENI and the masterclock device. Examine the masterclock's web interface for any slaveclock-related errors. Lastly, confirm that the time broadcast for the correct LAN port on the masterclock is active.
M
Megan PenningtonAug 17, 2025
Why does the WEMPE 20804/IP Clock green LED "State" blink continuously and the red LED "Error" show single or double flashing when connected to NTP server?
- J
  John BridgesAug 17, 2025
  This indicates a communication failure to the NTP server. First, check the configured IP addresses of the NTP server(s). If DHCP is enabled, verify that the IP addresses of the NTP server(s) are being obtained from the DHCP server. Next, check the IP routes from the ENI to the configured NTP server and back. If using redundant masterclocks, check all possible routes. Ensure that there are no firewalls or other blocking features on any routing devices between the ENI and the NTP server(s). Finally, verify that the NTP server at the configured IP address(es) is up and running.
U
umasseyAug 21, 2025
What to do if the yellow LED "Net" is on but the web interface of the WEMPE Clock is not reachable?
- M
  mhuntAug 21, 2025
  This is caused by a communication failure to the NTP server. If DHCP is disabled, verify that the configured static IP address (see label) is reachable within your IP subnet. If DHCP is enabled, review the logs of the DHCP server to confirm the MAC address of the ENI appears. Check the IP routes from your PC to the ENI and back. You can use the ping tool on the Tools page of the web interface to assist with this. Ensure there are no blocking features (firewall etc.) on any routing device between the ENI and your PC. Try using the factory default address or forcing the device to obtain a DHCP address lease using the buttons. If you still cannot determine which IP address the ENI is trying to use, request a diagnostic output at startup.
H
Hailey StewartAug 25, 2025
What to do if the WEMPE Clock movement doesn't step and the red LED "Error" shows triple flashing?
- S
  stephanie54Aug 25, 2025
  This issue occurs when the movement wires are shortcut or interrupted. Check the wires from the ENI to the movement. Note that after resolving the cause, the movement control will not recover automatically. To restart the H-Bridge power supply, press the "12h" button while the "Service" switch is set to "OFF". After this, the clock hands will most likely show an incorrect time, requiring adjustment via the web interface.
L
Lisa HamptonAug 27, 2025
How to resolve a temperature alarm on a WEMPE 20804/IP Clock?
- T
  Tiffany BrownAug 28, 2025
  A temperature alarm, indicated by the red LED "Error" blinking continuously, means that the ENI's environment exceeds the configured alarm threshold (default: 0…70°C). Check the ENI's environment to ensure it stays within this range.
D
deniseduffyAug 31, 2025
What to do if the WEMPE 20804/IP Clock green LED "State" shows single flashing and the yellow LED "Net" is off?
- O
  Olivia RobertsAug 31, 2025
  Check the speed and flow control settings on the corresponding port of the PoE switch that the ENI is connected to. It should be set to Auto or 100M full duplex with flow control enabled.
A
Anne BrownSep 2, 2025
What to do if the WEMPE Clock green LED "State" shows triple flashing and DHCP is activated?
- B
  Becky PriceSep 3, 2025
  Check the route of packets between the ENI and the supposed DHCP server. You can temporarily set a static IP address to the ENI and use the "Ping" tool to check the route.
S
Sarah LozanoSep 6, 2025
What to do if the blue LED "Power" is off on my WEMPE Clock?
- G
  Gregory Jones Jr.Sep 6, 2025
  Check the physical connection between the ENI and the PoE switch, including all cables and plugs. Verify the PoE settings on the port of the PoE switch that the ENI is connected to, specifically voltage and current. If other PoE devices work on the ethernet plug the ENI was connected to, the device may be damaged, and it is recommended to contact the manufacturer.
E
Eddie MorrisSep 10, 2025
What to do if the red LED "Error" is always on or the green LED "State" is always off on WEMPE 20804/IP Clock?
- Q
  qrossSep 10, 2025
  The device is damaged. Contact the manufacturer.

Summary

Marine Clock Dimension Drawing

Available Clock Movement Technologies and Spare Parts

Assembly and Commissioning of Secondary Clock Movements Type T

Operation Voltage

Sets the operating voltage for the secondary clock movement using DIP switches.

Clocks with a metal or plastic dial

Instructions for mounting the movement onto metal or plastic dials.

Clocks with transparent dials

Specific mounting instructions for transparent dial clocks.

Assembly of the hands

Procedure for attaching and adjusting the clock hands for proper alignment.

Connection to the power supply

Connecting the movement to the master clock using a 2-pole plug.

Setting of the hands

Method for setting the clock hands manually or via a setting button.

Technical data

Specifications and technical details for the secondary clock movement.

ENI Installation and Configuration

Configuration

Guides through the ENI's web interface setup and IP address configuration.

Ethernet network connection

Details on connecting the ENI via PoE switch or external power supply.

Setting up the Master Clock connection

Steps to connect the ENI to the master clock source (NTP or specific models).

NTP Server

Configuring the ENI to use an NTP server for time synchronization.

Wempe Master Clock 20100 or 20101

Setting up connection to specific Wempe Master Clock models.

Needed Ethernet ports; protocols for your firewall configuration

Required firewall settings for ENI communication.

Operating Controls

Switches

Overview of the switches and their functions on the ENI board.

Lights

Description of LEDs indicating power, network status, and operational state.

LED Status Indicators

Blue LED: Power

Indicates internal power regulation is active.

Yellow LED: Net

Shows Ethernet connection and activity.

Green LED: State

Indicates operational state through blink codes.

Red LED: Error

Shows the ENI's error state through blink codes.

Web Interface

User accounts and passwords

Managing user accounts and changing default passwords for the web interface.

General data

Overview of the ENI's physical, storage, and operating parameters.

Electrical data

Details on power supply options and output currents for the ENI.

Troubleshooting

Blue LED Power is off

Troubleshooting steps when the power LED is not illuminated.

Red LED Error is always on

Diagnosing issues when the error LED is constantly active.

Yellow LED Net is on or flickering, but web interface not reachable

Resolving network connectivity issues preventing web interface access.

Green LED State shows Single flashing

Troubleshooting network speed/flow control issues for the ENI.

Green LED State shows Double flashing