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Table 4 - SPI Baud Rate Adjustment

BAUD Rate

DIP Switch #6

DIP Switch #7

1200

ON

ON

2400

Off

ON

4800

ON

Off

9600

Off

Off

Operation

The temperature control unit cycles a heater and cooling valve
to maintain precise temperature control of the To Process water
temperature. Your unit may differ somewhat depending upon
the various options purchased; however, the overall function of
the unit is fundamental to all our temperature control units.

The pump continuously pumps water from the mixing tube
through the heater tube and out to the process equipment. The
water is pumped through the process equipment at a high flow
rate to ensure turbulent flow and efficient heat transfer. Once the
water exits the process equipment it returns to the mixing tube. 

A thermocouple is mounted at the exit of the heater tube to
measure the temperature of the To Process water temperature.
This temperature is used by the microprocessor to determine if
temperature adjustment is required. If the water temperature is
below set point, the heater is energized. Conversely, the cooling
solenoid or modulating valve is opened whenever the water
temperature is above set point. Opening the cooling solenoid or
modulating valve allows some of the warm water from the
process water circuit to exit through the cooling water out line.
At the same time, cool water is injected into the process circuit
from the cooling water in line. The replacement of warm water
with cool water provides the cooling that is required. The 
cooling valve is cycled by the microprocessor to allow precisely
controlled amounts of cooling water to enter the system.

A bypass line is provided to protect the pump from overloading
during those times with the process water circuit is shut off. This
prevents the pump from a deadheading situation and ensures
flow through the pump to keep the pump seal from overheating. 

A pressure switch is provided to ensure that there is sufficient
inlet cooling water pressure to allow the unit to operate without
the possibility of steam flashing. A pressure relief valve is provid-
ed to vent the process loop if the operating pressure becomes

too high.

WARNING: Do not plug the opening in the pressure relief 
valve under any circumstances as this is safety device that 
must not be defeated.

A small pump seal flush line is provided to continuously flush
the pump seal of dirt and debris.

Construction

Pump Assembly

The centrifugal close-coupled pump features a specially
designed cast volute to eliminate fittings and provide easy 
connection to the heater and/or mixing tubes. The pump volute
is constructed of cast iron. The ¾ through 2 HP pumps have
stainless steel impellers and pump shafts. The 3 HP through 7½
HP pumps have an iron impeller with a bronze wear ring in the
pump volute and carbon steel shafts with a bronze sleeve 
covering. All pump sizes use a carbon Ni-Resist mechanical
pump seal. All pumps include a pump seal flush line. 

Heater and Mixing Tube

Depending on the options and heater KW capacity of the unit,
there will be either two heater tubes or a heater tube and a 
mixing tube. Both the heater and mixing tubes have been
designed to match up to the pump volute casting. The tubes are
constructed of cast iron and are designed to connect with the
pump volute with two flange seals. Units with 0 KW through 12
KW heating capacity will include a larger heater tube and a
smaller mixing tube. Units with heating capacities of 18 KW or
24 KW will have two larger heater tubes and no mixing tube. 

Heater

(not available on RB and RBD units)

The heaters are vertical flange mounted with Incoloy heater 
element sheathing. All units will use one or more 9 KW or 12 KW
heater elements. The heaters are energized whenever the 
microprocessor determines that heating is required. 

Cooling Solenoid or Modulating Valve 

The cooling solenoid or modulating valve meters the cooling
water required for proper cooling. The valve allows warm water
to leave the process loop while letting cooling water to enter the
loop. This valve is also used to vent the process circuit during
Vent and/or Purge sequences. 

Pressure Switch 

All units are equipped with a pressure switch to ensure 
that the unit will not start until the inlet cooling water pressure
exceeds the pressure switch setting. This safety protects the
heater and pump seal from potential damage caused by 
lack of water as well as ensuring that the system pressure 
is above the vapor pressure of the water to prevent the 
water from flashing to steam.

WARNING: If the Set Point temperature is 200°F (93°C) or 
higher, the pressure switch should be set for a minimum of 
25 PSI (1.75 Bar).

© Copyright 2010 IMS Company. All rights reserved.

An ISO 9001:2008 Registered Quality Company

13

Содержание Hydra Pressurized

Страница 1: ...Company Hydra Pressurized Open Loop Mold Temperature Controllers INSTRUCTION MANUAL January 2007 IMS Company 10373 Stafford Road Chagrin Falls OH 44023 5296 Telephone 440 543 1615 Fax 440 543 1069 Email sales imscompany com Website www imscompany com Hydra is a trademark of IMS Company ...

Страница 2: ... 8 Purge 8 Alarm Silence 8 Lower Set Point Temperature 8 Raise Set Point Temperature 8 Low Pressure 8 High Temp Safety 8 Pump Motor Overload 8 Over Set Point 9 Under Set Point 9 Pump On 9 Heat 9 Cool 9 Vent 9 Probe Fault 9 Changing Temperature Display Scale 9 Seal Saver 10 Auto Tune 10 Diagnostic Error Codes 11 Table 3 Diagnostic Error Codes 11 CONTROL OPTIONS 12 Return Water Temperature Display 1...

Страница 3: ...r Modulating Valve 13 Pressure Switch 13 Pressure Relief Valve 14 STANDARD OPTIONS 14 Stacking Bracket Kit RA RB series 14 Mold Water Purge 14 Crash Cool 14 PREVENTIVE MAINTENANCE 14 Once a Week 15 Once a Month 15 TROUBLESHOOTING 16 CHARTS PUMP CURVES 17 Table 5 Single Zone Unit Electrical Specifications 17 Table 6 Dual Zone Unit Electrical Specifications 18 Figure 1 RA RAD RB RBD Series Pump Curv...

Страница 4: ...ing Inspection Each unit is skid mounted and boxed or crated to protect it during shipping Before accepting delivery check the box or crate for visible damage If damage is evident it should be properly documented on the delivery receipt and the box or crate should be immediately removed to allow for detailed inspection of the unit Check for broken water lines damaged controls or any other major co...

Страница 5: ...s well as quick disconnect fittings that offer high resistance to water flow When manifolds are required for water distribution they should be installed as close to the point of use as possible The return line should be the same size as the supply line In addition to the process water connections the unit requires a cooling water supply and return connection We recommend shut off valves at each ma...

Страница 6: ...5 PSI 1 75 Bar and 50 PSI 3 5 Bar If the supply cooling water pressure is higher than 50 PSI 3 5 Bar a pressure regulating valve should be installed on the supply line to the temperature control unit For assistance in installing a pressure regulating valve please contact our Tech Service Department 6 Turn on the control power by pressing the Power button located on the control panel of the unit Th...

Страница 7: ...ol Fault Logic Alarm Manual Remote Fault Alarm Pump Shut Heater Shut Unit Shut Reset Reset Alarm Indication Off Off Off Required 1 Required 2 Activated 3 Low Pressure LED Yes Yes Yes No No Yes High Temperature Safety LED Yes Yes Yes Yes No Yes Pump Motor Overload LED Yes Yes Yes Yes Yes Yes Over Set Point LED No No No No No Yes Under Set Point LED No No No No No Yes Probe Fault LED Yes Yes Yes Yes...

Страница 8: ...epressing the Alarm Silence button will open the contact that was closed when the alarm occurred The contact will not close again until the alarm has been reset and a subsequent alarm has been triggered Lower Set Point Temperature Depressing and then releasing the Lower Set Point Temperature button will decrease the set point temperature by 1 F or 1 C If the Lower Set Point Temperature button is h...

Страница 9: ...ted while the microprocessor is performing an Auto Vent sequence This sequence is performed each time the Start button is pressed to energize the unit unless the temperature is above 150 F The Auto Vent sequence opens the cooling solenoid or modulating valve for 30 seconds to vent air from the mold circuit Then the valve is kept open and the pump is energized for an additional 30 seconds The Vent ...

Страница 10: ...re a particular application may require additional fine tuning of the control parameters To make this procedure as simple as possible this controller has been equipped with an Auto Tune function The Auto Tune function is designed to automatically select the best control parameters based upon the particular system that the unit is connected to At the factory certain parameters have been limited so ...

Страница 11: ...tact Manufacturer for repair or replacement configuration change or invalid 111 Fixed parameter associated Controller requires servicing Contact Manufacturer for repair or replacement with range invalid 112 Setpoint out of temperature range Controller requires servicing Contact Manufacturer for repair or replacement 113 RAM hardware failure Controller requires servicing Contact Manufacturer for re...

Страница 12: ...connect the controller and the unit All control functions are available to the operator at the location of the remote panel and no control functions are available at the location of the unit SPI Communications This option provides an RS 485 communication port located below the control panel on the front of the unit The serial communications will be multi drop half duplex SPI 3 01 compatible and wi...

Страница 13: ...st not be defeated A small pump seal flush line is provided to continuously flush the pump seal of dirt and debris Construction Pump Assembly The centrifugal close coupled pump features a specially designed cast volute to eliminate fittings and provide easy connection to the heater and or mixing tubes The pump volute is constructed of cast iron The through 2 HP pumps have stainless steel impellers...

Страница 14: ...ss the Stop button This leaves the unit on but puts the microprocessor in an inactive mode The Power button light should still be illuminated 2 Close the valve on the Cooling Water In line to shut off the supply of water 3 Connect the compressed air supply to the ball valve on the back of the unit 4 Open the ball valve to let the compressed air into the mold circuit 5 Press the Purge button on the...

Страница 15: ...ay from the normal operating pressure 3 Check the pump for leaks in the seal area Replace pump seal if necessary Repeat items 1 through 3 listed above and continue with the following Once a Month 4 With the main disconnect shut off check the condition of electrical connections at all contactors starters and con trols Check for loose or frayed wires 5 Check the incoming voltage to make sure it is w...

Страница 16: ...ctioning correctly and replace any defective components Microprocessor controller failure Replace controller Failure of thermocouple Replace thermocouple Failure of heater Replace heater Failure of heater contactor Replace heater contactor Unable to cool properly Cooling water supply is not Check to make sure the cooling water supply is of sufficient sufficient temperature volume and pressure for ...

Страница 17: ...20 2 9 24 9 22 6 11 3 9 0 1 2 6 6 6 0 3 0 2 4 69 4 63 0 31 8 25 4 RA183A 2 9 24 9 22 6 11 3 9 0 1 3 9 9 9 0 4 5 3 6 72 7 66 0 33 3 26 6 RA183B 2 9 24 9 22 6 11 3 9 0 1 3 9 9 9 0 4 5 3 6 72 7 66 0 33 3 26 6 RA1850 2 9 24 9 22 6 11 3 9 0 1 5 16 5 15 0 7 5 6 0 79 3 72 0 36 3 29 0 RA1875 2 9 24 9 22 6 11 3 9 0 1 7 5 24 2 22 0 11 0 8 8 87 0 79 0 39 8 31 8 RA2408 2 9 24 9 22 6 11 3 9 0 1 0 75 3 7 3 4 1 ...

Страница 18: ...1810 4 9 24 9 22 6 11 3 9 0 2 1 3 7 3 4 1 7 1 4 132 4 120 3 60 4 48 3 RAD1820 4 9 24 9 22 6 11 3 9 0 2 2 6 6 6 0 3 0 2 4 138 2 125 5 63 0 50 3 RAD183A 4 9 24 9 22 6 11 3 9 0 2 3 9 9 9 0 4 5 3 6 144 8 131 5 66 0 52 7 RAD183B 4 9 24 9 22 6 11 3 9 0 2 3 9 9 9 0 4 5 3 6 144 8 131 5 66 0 52 7 RAD1850 4 9 24 9 22 6 11 3 9 0 2 5 16 5 15 0 7 5 6 0 158 0 143 5 72 0 57 5 RAD1875 4 9 24 9 22 6 11 3 9 0 2 7 5...

Страница 19: ...e prepared a custom set of drawings for your unit and placed them inside the control panel prior to shipment Please refer to these drawings when troubleshooting servicing and installing the unit If you cannot find these drawings or wish to have additional copies please contact our Tech Service Department and reference the serial number of your unit ...

Страница 20: ... the equipment and or system has been subject to misuse negligence or operation in excess of recommended limits including freezing or which has been altered and or repaired without express factory authorization If equipment is installed in hostile environments unless such conditions were specified at the time of purchase or the serial number has been removed or defaced this warranty shall not appl...

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