ITT IM213 manual Input and Output Functions

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Input and Output Functions

Section 8

The control terminal strips allow for a variety of input and output functions.

Warning: Turn off all power to the controller before wiring devices to the control terminals.

Warning: Inputs RUN/STOP, HAND/AUTO, SP2/SP1 and PRESSURE DROP are switch inputs. Do not connect power to these inputs or damage to the controller will result. Only connect non-powered switch contacts to these inputs.

RUN/STOP: This input allows the pump/motor to be turned on and off by an external switch. Connect the contacts of a non-powered external switch to terminals 1 (COM) and 2 (RUN/STOP). When the switch is closed the controller is in RUN mode (output to motor is enabled). When the switch is open the controller is in STOP mode (output to motor is disabled).

HAND/AUTO: This input allows the controller to run the motor at full speed without the use of a pressure transducer. This input can be controlled by an external non-powered switch. Connect the contacts of a non-powered external switch to terminals 3 (COM) and 4 (HAND/AUTO). When the switch is closed the

controller is in HAND mode. While in HAND mode the RUN/STOP input is used to start and stop the motor and the pressure transducer input is ignored. When the switch is open the controller is in AUTO mode. While in AUTO mode the controller uses the pressure transducer feedback to control the speed of the motor.

INPUT and +24V: These terminals are the transducer feedback and transducer power supply. Connect the white lead from the transducer cable to terminal 6 (INPUT). Connect the brown lead from the transducer cable to terminal 7 (+24V). Connecting the drain (bare) wire to the chassis allows grounding of the case of the pressure transducer. The controller is configured with a 300 PSI 4-20mA output pressure transducer.

ANALOG OUTPUT: This output is a 4-20mA signal based on motor speed (4mA = 0Hz, 20mA = 60Hz) and can be connected to external monitoring or external control devices. Connect terminal 10 (ANALOG OUTPUT) to the 4-20mA input of the external device. Connect terminal 9 (COM) to the negative side of the current loop on the external device. The external device must have an input resistance (impedance) in the range of 45Ω to 250Ω. The maximum output voltage is 24V.

SP2/SP1: This input allows the system to operate at one of 2 pressure settings. This input can be controlled by an external non-powered switch. Connect the contacts of a non-powered external switch to terminals 5 (COM) and 11 (SP2/SP1). When the switch is closed pressure set point 2 is enabled (preset to 75 PSI when used with a 300 PSI transducer). When the switch is open pressure set point 1 is enabled (preset to 50 PSI when used with a 300 PSI transducer).

PRESSURE DROP: This input allows the user to select the amount of pressure drop in the system before the pump starts. This input can be controlled by an external non-powered switch. Connect the contacts of a non-powered external switch to terminals 5 or 9 (COM) and 12 (PRESSURE DROP). When the switch is closed the system pressure will drop 20 PSI (when used with a 300 PSI transducer) before restarting the pump. When the switch is open the system pressure will drop 5 PSI (when used with a 300 PSI transducer) before restarting the pump.

RUN RELAY: This output indicates when the pump/motor is running. This output can be used to control power to a light, an alarm or other external device. When the pump/motor is off terminal 13 (RELAY1 – NO) will be open and terminal 14 (RELAY 1 – NC) will be connected to terminal 15 (RELAY1 – COM). When the pump/motor is on terminal 13 (RELAY1 – NO) will be connected to terminal 15 (RELAY1 – COM) and terminal 14 (RELAY 1 – NC) will be open. The relay rating is 250Vac, 5 amps maximum.

FAULT RELAY: This output indicates when the system is faulted. This output can be used to control power to a light, an alarm or other external device. When the system is not faulted terminal 16 (RELAY2 – NO) will be open and terminal 17 (RELAY 2 – NC) will be connected to terminal 18 (RELAY2 – COM). When the system is faulted terminal 16 (RELAY2 – NO) will be connected to terminal 18 (RELAY2 – COM) and terminal 17 (RELAY 2 – NC) will be open. The relay rating is 250Vac, 5 amps maximum.

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Contents IM213 Commercial Water ITTIndex Death Safety InstructionsVolt = System ComponentsController Product Code Information HP =Fusible Disconnect System DesignSection Diagram #2 shows a set-up for municipal water connectionPressure Tank, Pressure Relief Valve and Discharge Piping Installing the Pressure SensorPiping GeneralMounting the Controller Power Supply Power Supply and WiringDelta/Wye with grounded Wye neutral Ungrounded secondary Delta/Delta with grounded legOpen Delta consult factory Resistance grounding and ground fault protectionFor Frame Size 1 Controllers 208/230 Single Phase Connection460 20ºC 30ºC 40ºC 50ºC Conduit, Wire and Fuse SizingOutput Power Connections Input Power and Line Transformer RequirementsStarting the System Input Power Connections Chart below shows the motor overload setting for each model Setting the Motor Overload SwitchesSetting the Carrier Frequency Switch Setting the Acceleration/Deceleration SwitchesSetting the No Water Restart Time Switches Setting the Minimum Frequency SwitchMotor Rotation Direction Setting the PressureSystem Status Input and Output Functions Standby TroubleshootingUse the following table to help troubleshoot problems SwitchIncorrect setting of Motor Overload Setting switches Constant Controller ErrorPower. If the error persists, replace controller This fault can be caused byConnect the black lead from the meter to terminal Set the meter to read DC current mASensor cable To 50% or lower Blinks Temperature This fault can be caused byTemperature reaches 104 ºF 40ºC Megger readings10Hz for 5 minutes Greater than 275V for 230V units and 560V for 460V unitsController Dimensions Input Appendix Input Wire Sizing ChartsPage IM213 Revision Number November

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