FW Murphy TTD Series User manual

00-02-0697
2018-10-22
Section 50
TTD
SeriesConfigurable
FaultAnnunciator
Installation and Operations Manual

FW Murphy has made efforts to ensure the reliability of the TTD System and to
recommend safe usage practices in system applications. Please note that in any
application, operation and controller failures can occur. These failures may result
in full control outputs or other outputs, which may cause damage to or unsafe
conditions in the equipment or process connected to the TTD system.
Good engineering practices, electrical codes and insurance regulations require
that you use independent external protective devices to prevent potentially
dangerous or unsafe conditions. Assume that the TTD system can fail with outputs
full on, outputs full off or that other unexpected conditions can occur.
Please read the following information before installing the TTD annunciator.
This installation information is intended for all TTD Series models. A visual
inspection of this product before installation for any damage during shipping is
recommended.
Disconnect all power and be sure machine is inoperative before beginning
installation.
Installation is to be done only by qualified technician.
Observe all Warnings and Cautions at each section in these instructions.
Device shall be wired in accordance with Class I, Division 2 wiring methods.
This equipment is suitable for use in Class I, Division 2, Groups B, C and D
hazardous areas.
WARNING –Explosion Hazard –Substitution of components may impair
suitability for Class I, Division 2.
Please contact FW Murphy immediately if you have any questions.

Table of Contents
Product Description...................................................................................................................1
Display Head (TTD-H)..................................................................................................1
Power Supply...............................................................................................................2
Dimensions ..................................................................................................................2
Installation...................................................................................................................................3
Mounting the Unit.........................................................................................................3
Installation Diagram for the TTD Display......................................................................4
Typical Installations for TTD Power and Control Inputs/Outputs..................................6
TTD G-Lead Choke Installation Instruction ..................................................................9
Backup Battery Replacement.....................................................................................10
Initial Power-up ..........................................................................................................12
Product Features......................................................................................................................13
The Display................................................................................................................14
Front Panel Key Functionality ....................................................................................15
TTD Keypad Features................................................................................................15
Operational Display Messages...................................................................................19
Backlight used as Status Indication............................................................................21
Configuration / Setup of the TTD Annunciator....................................................................22
Navigating the TTD Front Panel.................................................................................22
Entering Setup Mode .................................................................................................23
Setup 1 –Timer Setup ...............................................................................................25
Setup 2 –Sensor Mode .............................................................................................27
Setup 3 –Sensor Type ..............................................................................................30
Setup 4 –Remote Reset Remote Lockout Select and No-Flow Enable Delay ..........32
Setup 5 - Hourmeters.................................................................................................34
Setup 6 –Speed Calibration ......................................................................................35
Setup 7 –Tachometer Overspeed Option..................................................................37
Setup 8 –Tachometer Underspeed Option................................................................38
Setup 9 –Communication Settings............................................................................39

Setup A –Output Mode..............................................................................................40
Setup B –Unit Identification (ID)................................................................................41
Setup C –Factory Default..........................................................................................42
Voltage Readings.......................................................................................................43
Software Version........................................................................................................44
Communications......................................................................................................................45
Communications Port.................................................................................................45
Modbus Register Address Listings.............................................................................46
Specifications...........................................................................................................................49
TTD Replacement Parts and Assemblies.............................................................................51

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Product Description
The TTD product is a solid-state fault annunciator and shut-down control system designed to
protect engines, compressors and their associated equipment. The TTD monitors 48 normally
open and/or normally closed sensors. Each of the 48 channels can be configured for
Shutdown or Alarm Only. Any channel can be locked out by one of the two Start-Run timers or
configured as Class C, ESD or Ignore. The annunciator provides logic for both closing of a fuel
valve and grounding of an ignition after a time delay.
Incorporated in the TTD non-volatile memory:
Run Hours/Elapsed Time Meter (hours roll over at 99,999)
Last 10 Shutdowns with associated run hours
Last 4 Alarms with associated run hours
Optional Features (Model Dependent):
Pre/Post lube timed functionality
Tachometer w/ Overspeed and Underspeed setpoints
Lubricator No-Flow detection for up to 4 pulsing proximity switches
Display Head (TTD-H)
The Display Head shows operational and configuration data. Configuration parameters are
entered via keypad or transferred using PC and Mconfig™ software. The operator interface will
accept digital inputs directly on the back of the unit. Power is provided to the Display Head via
a direct-mounted power supply or a cable connecting to a remote mounted power supply. The
display head contains the microprocessor, the Liquid Crystal Display (LCD), the membrane
keys for configuring the sensors inputs and the sensor input terminal blocks.
The TTD liquid crystal display annunciates any fault from the sensor channel, displays engine
speed and run hours/elapsed time. Other features for the TTD model are: built-in Test Mode to
test the sensor circuits without shutting down; Pre-lubrication and Post-lubrication timers; and
onboard backup battery to retain the fault display after shutdown on ignition-powered units.

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Power Supply
The Power Input and Control Output Terminals are mounted on the Plug-in Power Supply
(PSU-2). The Power Supply also includes a RS485/RS232 serial communication port
(MODBUS RTU slave) to interface with micro-controllers, PCs, PLCs and/or communication
and control systems. The serial communication provides read and write register capability with
selectable baud rates up to 38,400 bps.
All PSU-2 Power Supply models are reverse polarity protected and can be powered by 10-
32vdc or 90- 400vdc negative ground CD ignition. The TTD annunciator is fully operable with
the internal battery. The external DC power enables communications support and turns on the
display backlight.
Dimensions
TTD Display Head
Power Supply

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Installation
Mounting the Unit
The TTD head was designed to be mounted within a weatherproof enclosure. It is intended for
mounting in a flat panel. A square mounting hole of 5-1/2 in. (140 mm) and 4 mounting screw
holes are needed.
WARNING! Perform the mounting operation with power source off.
Stud Tightening Pattern
The following stud tightening instructions are required to maintain the IP66 rating when
installation requires the display to be mounted in an enclosure door exposed to atmospheric
conditions.
Stud tightening pattern should be followed:
1. Top left corner
2. Bottom right corner
3. Top right corner
4. Bottom left corner
5. Top center
6. Bottom center
7. Right center
8. Left center
Tighten holding nuts to 9 in. /lbs.

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Installation Diagram for the TTD Display

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Typical Installations for TTD Power and Control Inputs/Outputs