The Nova PD570 is a digital limit controller that accepts a wide variety of process and temperature inputs and is available in 1/16 and 1/4 DIN sizes. Its universal input accepts thermocouple, RTD, and voltage inputs, and it can be easily configured for a 4-20 mA input. It features a latching relays, an alarm relay, and an RS485 serial communication option which includes protocols for master/slave set point control, Modbus® ASCII and RTU, as well as PC software.
Display: Dual 4 digits, red LED, -1999 to 9999
PV Display Inch (mm)
SP Display Inch (mm)
Weight oz (g)
Front Panel: Panel gasket provided. 1/16 DIN: IP65 1/4 DIN: IP55 Programming Methods: Four front panel buttons and Modbus Noise Filter: Programmable 1 to 120 seconds, or off Display Update Rate: 4/second Max/Min Display: Stored until reset by user or meter is turned off. Password: Restricts modification of programmed settings. Non-Volatile Memory: Settings stored for a minimum of 10 years Power: 100-240 VAC, 50/60 Hz, 10 W Required Fuse: UL Recognized, 1 A, 250 V, slow-blow Isolation: 2300 V input/output-to-power line; 4 kV relay output-to-input/output/power line. Operating Temperature: 10 to 50°C Storage Temperature: -40 to 85°C Relative Humidity: 20 to 90% non-condensing Enclosure: 1/8 & 1/4 DIN available; impact-resistant plastic; color: black UL File Number: E244207; Process Control Equipment Approvals: UL & C-UL Recognized, CE Compliant Warranty: 3 years parts & labor
Inputs: Factory calibrated, field selectable: J, K, T, E, B, R, S, L, U, N, W, and Platinel II thermocouples and 100 Ω platinum RTD (0.00385 or 0.00392 curve) Cold Junction Reference: Automatic or off Offset Adjustment: Four programmable input bias zones Sensor Break: Up or down scale, user selectable; display reads S.OPN; alarm relays will follow the up or down scale selection.
* Performance within recommended operating conditions (10 to 50 ºC, 20 to 90% RH)
Inputs: Field selectable: 0.4 to 2.0 V, 1 to 5 V, 0 to 10 V, -10 to 20 mV, 0 to 100 mV. 4-20 mA input requires 100Ω resistor connected across input terminals (order P/N: PDX-RES1). Accuracy: ±0.1% FS ±1 count Decimal Point: Up to 3 decimals: 9.999, 99.99, 999.9, or 9999 Calibration: All inputs are calibrated at the factory Scale Range: User programmable over entire range Transmitter Supply: 14 to 18 VDC @ 20 mA; available instead of retransmitting analog output; selection is made through the front panel.
Limit Control Relay and Indicators
Ratings: Latching, 1 Form C (SPDT); rated 3 A @ 30 VDC or 3 A @ 250 VAC resistive load Relay Operation: User may select high or low limit operation, forward or reverse (fail-safe) mode. Reverse Operation (Fail-Safe): Programmable; relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm state. Forward Operation: Relay coil is energized in alarm condition. In case of power failure, relay will go to non-alarm state. Hysteresis: 0-10% FS, user selectable; manual reset allowed after condition has been corrected. Out LED: Relay status indicator. LED is on when relay is de-energized (during over limit conditions in reverse operation). Over Limit LED: Over LED is on when system is in over limit condition. LED will go off once system returns to normal condition. Over Limit Timer Display: Time stored since last occurrence of over limit condition or until controller is turned off.
Ratings: 1 Form A (SPST); rated 1 A @ 30 VDC or 1 A @ 250 VAC resistive load High/Low Alarm: User may program alarm for absolute value, high or low operation, forward or reverse (fail-safe) mode. Deviation Alarm: User may program relay for high, low, or high/low range deviation alarm, forward or reverse (fail-safe) mode. Alarm Deadband: 0-100% FS, user selectable Alarm Delay: 0 to 99 minutes and 59 seconds Reverse Operation (Fail-Safe): Programmable; relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm state. Forward Operation: Relay coil is energized in alarm condition. In case of power failure, relay will go to non-alarm state. Auto Alarm Initialization: Normal and standby operation. Normal alarm will reflect the state of the input to the controller at all times. Standby alarm will not trigger if the change to alarm state is a result of power up cycle, set point change, or alarm configuration change.
4-20 mA Retransmitting Output
Scaling Range: 4-20 mA output can be scaled for any display Accuracy: ±0.1% FS Power: Internally powered 4-20 mA output Isolation: 500 V input-to-output Output Loop Resistance: 600 Ω max
Compatibility: EIA-485 Protocol: PC, Modbus (ASCII, RTU) Address: 1 to 99 (Max 31 units connected) Baud Rate: 600 to 19,200 bps Data: 7 or 8 bit, automatic when using Modbus protocol Transmit Time Delay: 0 to 100 ms Stop Bit: 1 or 2 Parity: None, even, or odd
Nova Multi-Monitoring PC Software
Any Nova Controller with the serial communications option can be configured to interface with the Nova Multi-Monitoring PC software. Up to 30 controllers can be monitored and operated, and each can use independent data logging.
System Requirements: Windows® 95\98\ME\2000\XP\Vista\7 Communications: An RS-232 to RS-485 or USB to RS-485 converter may be used for communication with a PC and Nova Multi-Monitoring Software. Number of Units: Up to 30 Nova Controllers Baud Rate: 9,600 to 19,200 bps Data Logging: Graph and save data as .hdr format. Each controller saves graphs independently. Data exportable in spreadsheet format. Logging Interval: 1 second to 24 hours
Simultaneously monitor up to 30 Nova Controllers and view the PV, SP, and alarm status for all connected controllers. The main view screen also displays the basic model numbers of all connected units. Any series of Nova Controllers with the serial communications option may be monitored with this software.
Simultaneously View Up to 30 Nova Controllers
Remotely Control Set Points
Program each of the 4 set points through a detailed operation screen available for every connected controller. In addition, control outputs can be set to run or stop, auto tuning enabled, and automatic or manual control established.
Monitor and Control Common Parameters
PV and SP data can be logged independently for each unit. This data can be graphed using the Data Viewer for quick and clear analysis. Logged data can be exported into spreadsheet format.