Panel to ESM(r) Interfacing - Revision history

Thomas Peterson at 20:26, 15 February 2024

2024-02-15T20:26:53Z

← Older revision		Revision as of 20:26, 15 February 2024
Line 90:		Line 90:

	When working, the EDT tab on the home page will show some relevant engine data.		When working, the EDT tab on the home page will show some relevant engine data.

			== Start Sequence ==

			*On power up, unit is STOPPED
			**START is off
			**RUN/START is off
			*Operator presses RESET
			**Unit will go to STANDBY
			*Operator presses START
			**Assuming all A and ESD faults are clear, unit goes to next state
			*Blowdown, purge, prelube sequences will run if needed
			*ESM Start Sequence
			**Run Relay energizes providing +24V to "ESM Normal Run/ Stop"
			**Annunciator provides momentary +24 pulse on "ESM Start Engine"
			**Panel goes to WAITING FOR ESM RUN
			**ESM will pre-lube and start the engine
			**Once rpm reaches 650, the next state is entered
			**If ESM fails to start engine in “ESM Max Startup Wait Time” setting time period, the system faults to stop state with fault code "ECU Failed to Start"
			*Warmup
			**B1 and B2 counters begin counting down
			**The panel will hold idle until the idle hold condition is met (regardless of panel SPEED MODE switch position).
			**The analog out ‘SPEED TARGET’ will be at minimum
			**Panel will display “RUN” and “Idle permissive not met”
			**B1 and B2 timers will count down and expire normally. Operator RESET presses will reset these timers
			*Running
			**Once the ‘Idle Hold Condition’ is met, speed control enters normal operation
			**The speed output to the ESM will now changed based on the operator SPEED MODE switch position
			***IDLE- remain at idle
			***MANUAL- Increase/Decrease speed with EMIT manual knob
			***AUTO- run to configured AUTO speed settings (e.g. fixed speed or controlling to suction pressure)

Thomas Peterson: /* ESM Data Connection */

2024-02-15T20:18:27Z

ESM Data Connection

← Older revision		Revision as of 20:18, 15 February 2024
Line 80:		Line 80:

	The ESM 485+/- wires shown in the wire table in an above section are inputs to a modbus slave port on the ESM. These will be wired back to pins 25,26 on the back of the DCT. In most cases there will be wires ran from the DCT to a relevant terminal block and shown on the schematic so the ESM 485 wires can land at the terminal block.		The ESM 485+/- wires shown in the wire table in an above section are inputs to a modbus slave port on the ESM. These will be wired back to pins 25,26 on the back of the DCT. In most cases there will be wires ran from the DCT to a relevant terminal block and shown on the schematic so the ESM 485 wires can land at the terminal block.

			=== Setup ===

	The EDT (engine data translator) in the DCT will be set up to communicate with the ESM and pull data back to the DCT. The EDT setup is found under Settings -> Engine Data Translator.		The EDT (engine data translator) in the DCT will be set up to communicate with the ESM and pull data back to the DCT. The EDT setup is found under Settings -> Engine Data Translator.

			[[File:Edt esm.PNG\|400px]]

			On the mode, set to "Wauk. ESM" for the original ESM or "Wauk. ESM2" for the newer ESM2. In either case, a lower section will show up where the target ID, baud rate, and line control mode will be shown. These settings will vary by engine and sometimes are configurable, but the setting on the EDT page needs to match the engine setting.

	~~On the mode~~, ~~set to "Wauk. ESM" for~~ the ~~original ESM or "Wauk. ESM2" for~~ the ~~newer ESM2~~.		When working, the EDT tab on the home page will show some relevant engine data.

Thomas Peterson at 20:16, 15 February 2024

2024-02-15T20:16:15Z

← Older revision		Revision as of 20:16, 15 February 2024
Line 76:		Line 76:

	== ESM Data Connection ==		== ESM Data Connection ==

			=== Connection ===

			The ESM 485+/- wires shown in the wire table in an above section are inputs to a modbus slave port on the ESM. These will be wired back to pins 25,26 on the back of the DCT. In most cases there will be wires ran from the DCT to a relevant terminal block and shown on the schematic so the ESM 485 wires can land at the terminal block.

			The EDT (engine data translator) in the DCT will be set up to communicate with the ESM and pull data back to the DCT. The EDT setup is found under Settings -> Engine Data Translator.


			On the mode, set to "Wauk. ESM" for the original ESM or "Wauk. ESM2" for the newer ESM2.

Thomas Peterson at 20:05, 15 February 2024

2024-02-15T20:05:10Z

@@ Line 7: / Line 7: @@
 Navigate to Settings - Brain - Outputs Setup - ECU Selection, and select "Waukesha ESM".
-== Panel to ESM Connections ==
+==Wiring==
 There are three discrete connections from the panel to the ESM: Run permissive, start initiate, and emergency stop. There is also one analog connection for target speed. The schematic should show a page where these land in that specific panel. The details of each signal is noted below.
-=== ESM Normal Run ===
+==== ESM Normal Run ====
 The ESM normal run wire is numbered 1611 from the engine. This wire needs 24VDC maintained to run. In the EMIT panel this will be powered from a relay that will be ON during run. Usually this relay coil is powered from the fuel valve output of the brain (Pin 10) or a digital output that is set to Fuel valve or Driven equipment ready. This relay will come on during the start sequence and turn off when the unit should shut down.
-=== ESM Normal Start ===
+==== ESM Normal Start ====
 The ESM normal start wire is numbered 1609 from the engine. This wire is pulsed with 24VDC for a second or two to start the engine. On the EMIT panel it will always be controlled from relay CR2 from output DO-2. This relay / output will turn on for a couple seconds during the start sequence when the start initiate should begein.
-=== ESM Emergency Shutdown ===
+==== ESM Emergency Shutdown ====
 The ESM emergency stop wire is numbered 1606. This wire needs 24VDC maintained to run. In the EMIT panel this will be routed through the cabinet E-stop switch and back to power, so that if the switch is pushed in the power is removed from the ESD wire.
-=== ESM Speed Target Signal ===
+==== ESM Speed Target Signal ====
 The ESM speed target is a pair of wires that are numbered 1614 for signal and 1613 for return. These are an analog input on the ESM for the speed target. On the EMIT panel analog out 1 of the brain is always used for the speed target, which wires to this pair. AO-1 will go to the signal wire and the ground return will go to normal panel ground. In speed control setup the 4-20 mA range will match the idle to rated speed of the engine.

Thomas Peterson: Created page with "== Overview == The Waukesha ESM (r) is an engine control unit made by Waukesha for their VHP series engines. When a unit with an ESM is connected to an EMIT panel, the panel will use a few signals to control the start, stop, and speed of the engine. Many concepts are similar to connecting to other engines. === Initial Setup === Navigate to Settings - Brain - Outputs Setup - ECU Selection, and select "Waukesha ESM". == Panel to ESM Connections == There are three disc..."

2024-02-15T18:19:55Z

Created page with "== Overview == The Waukesha ESM (r) is an engine control unit made by Waukesha for their VHP series engines. When a unit with an ESM is connected to an EMIT panel, the panel will use a few signals to control the start, stop, and speed of the engine. Many concepts are similar to connecting to other engines. === Initial Setup === Navigate to Settings - Brain - Outputs Setup - ECU Selection, and select "Waukesha ESM". == Panel to ESM Connections == There are three disc..."

New page

== Overview ==

The Waukesha ESM (r) is an engine control unit made by Waukesha for their VHP series engines. When a unit with an ESM is connected to an EMIT panel, the panel will use a few signals to control the start, stop, and speed of the engine. Many concepts are similar to connecting to other engines.

=== Initial Setup ===

Navigate to Settings - Brain - Outputs Setup - ECU Selection, and select "Waukesha ESM".

== Panel to ESM Connections ==

There are three discrete connections from the panel to the ESM: Run permissive, start initiate, and emergency stop. There is also one analog connection for target speed. The schematic should show a page where these land in that specific panel. The details of each signal is noted below.

=== ESM Normal Run ===

The ESM normal run wire is numbered 1611 from the engine. This wire needs 24VDC maintained to run. In the EMIT panel this will be powered from a relay that will be ON during run. Usually this relay coil is powered from the fuel valve output of the brain (Pin 10) or a digital output that is set to Fuel valve or Driven equipment ready. This relay will come on during the start sequence and turn off when the unit should shut down.

=== ESM Normal Start ===

The ESM normal start wire is numbered 1609 from the engine. This wire is pulsed with 24VDC for a second or two to start the engine. On the EMIT panel it will always be controlled from relay CR2 from output DO-2. This relay / output will turn on for a couple seconds during the start sequence when the start initiate should begein.

=== ESM Emergency Shutdown ===

The ESM emergency stop wire is numbered 1606. This wire needs 24VDC maintained to run. In the EMIT panel this will be routed through the cabinet E-stop switch and back to power, so that if the switch is pushed in the power is removed from the ESD wire.

=== ESM Speed Target Signal ===

The ESM speed target is a pair of wires that are numbered 1614 for signal and 1613 for return. These are an analog input on the ESM for the speed target. On the EMIT panel analog out 1 of the brain is always used for the speed target, which wires to this pair. AO-1 will go to the signal wire and the ground return will go to normal panel ground. In speed control setup the 4-20 mA range will match the idle to rated speed of the engine.