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INT69 PYF Diagnose PREMIUM

Premium protection relays represent the pinnacle of safety technology for industrial facilities. These advanced electronic devices set new standards in terms of performance and reliability. A premium protection relay is a state-of-the-art protective device specifically designed for complex industrial applications.

The PREMIUM protection relay INT69 PYF Diagnose connects pumps, protection functions and the digital world. Simple networking is possible with the help of the integrated Modbus interface. The device monitors the motor temperature, the bearing temperature, leakage, vibration, voltage and current. The integrated power measurement is suitable for a frequency converter. A relay for alarm and warning ensures the necessary operational safety.

Article number Power supply
20 A 721 P081 AC/DC 50/60 Hz 24 V
22 A 721 P081 AC 50/60 Hz 100 - 240 V

 

Product information

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The INT69 PYF Diagnose with Modbus interface and power measurement is a universal and versatile protection relay. The following inputs and outputs are available for monitoring electrical components:

Terminals Inputs and outputs
L/L+, N/L- Supply voltage
T1, T2 Motor temperature (PTC, Pt100, Pt1000, bimetal, external relay contact)
T3, T4 Temperature 1 (PTC, Pt100, Pt1000)
T5, T6 Temperature 2 (PTC, Pt100, Pt1000)
E+, E- Leakage (resistance measurement)
SC1, SC2 Switching input (float switch, external reset)
I+, I- Analog input 0/4-20mA
FE Functional ground
L1, L2, L3 Phase monitoring with phase sequence, phase failure, phase asymmetry, undervoltage and overvoltage
S1, S2 Current transformer INT185
11, 14, 12 Alarm relay
21, 24, 22 Warning relay
COM, D1, D0, COM RS485, Modbus RTU

Cosφ, service interval, switching frequency, short circuit and interruption of the sensors can also be monitored. Consumed apparent, active and reactive power is determined and in the protection relay and active and reactive energy is counted. Parametrization enables protection functions and response settings to be adapted flexibly to suit the application.

The INT69 PYF Diagnose saves operating and fault data in a non-volatile memory. This data can be read out and evaluated for diagnostic purposes. Parameterization and diagnostics are possible via the built-in diagnostic port (DP) using the INTspector app and with separately available accessories. This protection relay device is used primarily for the protection of pumps and agitators. The INT185 current transformer is also required for the full range of functions.

Supply voltage

22 A 721 P081

20 A 721 P081

 

AC 50/60 Hz 100-240 V ±10 % 9 VA

AC/DC 50/60 Hz 24 V ±20 % 7 VA

Permissible ambient temperature TA -30...+70 °C
Permissible humidity 0…95 % r.h., non-condensing
Maximum usage height 2000 m

Temperature measuring circuit bimetal/external relay contact

– Type

– Contact suitable for

– Max. line length

 

for an NC contact

DC 24 V, 20 mA

100 m

PTC temperature measuring circuit

– Type

– R25, total

– RTriggering, static

– RReset

– Short circuit monitoring

– Break monitoring

– Max. line length

 

1-9 PTC sensors according to DIN 44081, DIN 44082 in series

<1.8 kΩ

4.5 kΩ ±20 %

2.75 kΩ ±20 %

<20 Ω

>20 kΩ

100 m

Pt100 temperature measuring circuit

– Measuring range

– Resolution

– Accuracy

– Short circuit monitoring

– Break monitoring

– Max. line length

 

-50... +300 °C

1 K

5 % of the ohmic value

<20 Ω

>400 Ω

100 m

Pt100 temperature measuring circuit

– Measuring range

– Resolution

– Accuracy

– Short circuit monitoring

– Break monitoring

– Max. line length

 

-50... +300 °C

1 K

5 % of the ohmic value

<20 Ω

>400 Ω

100 m

Leakage measuring circuit

– Type

– Measuring range

– Resolution

– Accuracy

– Max. line length

 

Resistance measurement between electrode pairs

10 k to 1 MΩ

1 kΩ

±(1 kΩ + 10 % of the MW)

100 m

Switching input

– Type

– Contact suitable for

– Max. line length

 

For a floating NC or NO contact (e.g., reset button)

DC 24 V, 20 mA

100 m

Analog input

– Type

– Applied voltage

– Measuring range

– Resolution

– Accuracy

– Current limitation

– Max. line length

 

0…20 mA / 4…20 mA current signal

DC 24 V +5 % / -25 %

0…20 mA

0.1 mA

±2.5 % of the MW

30 mA, short-circuit-proof

30 m

Phase measurement

– Operation with FC

– Measuring range, phase-phase

– Resolution

– Clock frequency range

– Typical clock frequency

– Precision, sinus operation

– Precision, FC operation

– Max. line length

 

Suitable

AC 20…100 Hz, 100…690 VAC ±10%

1 V

2…16 kHz

8 kHz

±(1 V + 2.5 % vom MW)

±(1 V + 5 % vom MW)

3 m

Frequency measurement

– Resolution

– Accuracy

 

1 Hz

±1 Hz

Current measurement

– Type

– Load

– Measuring range with 02D187

  • For 1 winding
  • For 10 windings

– Resolution

– Accuracy

  • Sinus operation
  • FC operation

– Max. line length

 

For a current transformer

R=75 Ω, Imax =40 mA

1~ AC 20…100 Hz ±10 %

5...100 A

0.5...10 A

0.01 A

 

±2.5 % of the MW

±5 % of the MW

3 m

Cosφ measurement

– Measuring range

– Resolution

 

0…1

0.01

Power measurement with 02 D187

– Measuring range

– Resolution

– Precision (FC operation)

  • Active power, reactive power
  • Apparent power

 

AC 20…100 Hz ±10 %, 120 kVA

1 VA/W/var

 

±10 % at cosφ > 0.4

±10 %

Energy meter

– Measuring range

– Resolution

 

Approx. 43 GWh/Gvarh

0.01 kWh/kvarh

Modbus

– Protocol

– Address range

– Suitable cable

– Security

– Specification

– Interface

– Baud rate

– Parity

– Stop bit

– Terminal resistance

 

Modbus RTU (TwoWire)

1…247

Twisted pair, e.g. cable LiYCY (TP) 2x2x0.25 mm2

Electrically isolated

Modbus application protocol specification of Modbus-IDA

RS485

9.6 k, 19.2 k, 38.4 k or 57.6 k

Even, odd or none

1 or 2

No internal terminal resistance.150 ohm required between D0-D1, see scope of supply

Interface Diagnostic port (DP)

Reset of lock or restart delay

– Option 1

– Option 2

 

Network reset >5 s

External reset at switching input. Only possible once any errors have been rectified

Alarm/warning relay

– Contact

 

– Mechanical service life

 

240 V AC, 2.5

24 V AC/DC, 20 mA

Approx. 1 million cycles

Degree of protection as per EN 60529 IP20

Connection type

– General

– Modbus

 

Tension spring connection (push-in) 0.2-2.5 mm2

Screw terminal 0.2-2.5 mm2

Housing material PA 66 GF 30
Fixing Control cabinet housing (basic grid 45 mm), clippable on to 35 mm standard rail as per EN60715
Dimensions See dimensions in mm

Weight

– 22 A 721 P081

– 20 A 721 P081

 

315g

310g

Test regulations

EN 61000-6-2, EN 61000-6-3, EN 61010-1

Overvoltage category III

Degree of pollution 2

Approval UL File Nr. E473026 cURus

 

Compare our products and find the right protection relay for pumps.

  INT69 PYF Diagnose Premium INT69 YF Diagnose EXTENDED INT69 YF Diagnose STANDARD INT69 F Diagnose BASIC INT69 EXF2 Diagnose BASIC EX
Motor temperature PTC, Pt100, Pt1000, bimetal PTC, Pt100, Pt1000, bimetal PTC, Pt100, Pt1000, bimetal PTC, Pt100, Pt1000, bimetal -
Temperature 1 PTC, Pt100, Pt1000 PTC, Pt100, Pt1000 PTC, Pt100, Pt1000 PTC, Pt100, Pt1000, bimetal PTC
Temperature 2 PTC, Pt100, Pt1000 PTC, Pt100, Pt1000 PTC, Pt100, Pt1000 - Bimetal
Leakage 1

Conductance measurement

Conductance measurement, switching input

Conductance measurement, switching input Conductance measurement Conductance measurement
Leakage 2 Switching input

Conductance measurement, switching input

Conductance measurement, switching input

- -
Analog input 0/4 – 20 mA 0/4 – 20 mA - - -
Phase monitoring

Phase failure, phase sequence, phase asymmetry, undervoltage and overvoltag

Phase failure, phase sequence, phase asymmetry, undervoltage and overvoltag

Phase failure, phase sequence, phase asymmetry, undervoltage and overvoltag

Run detection Run detection

Current monitoring

Current transformer - - - -
Power measurement

Apparent, active and reactive power, Cosφ

- - - -
Relay 1 Alarm Alarm Alarm Temperature Temperature
Relay 2 Warning Warning - Leakage Leakage
Interface Diagnostic port (DP)
Modbus RTU (RS485)
Diagnostic port (DP) Diagnostic port (DP) Diagnostic port (DP) Diagnostic port (DP)

Housing width

45mm 45mm 45mm 22.5mm 22.5mm
Reset function Network reset Network reset Network reset

Reset button/ external reset/ network reset

Reset button/ external reset/ network reset

Supply voltage

AC 50 / 60 Hz 100 – 240V

22 A 721 P081 22 A  701 P081 22 A 700 P081 22 A 712 P081 22 A 713 P081

Supply voltage

AC / DC 50 / 60 Hz 24V

20 A 721 P081 20 A 701 P081 20 A 700 P081 20 A 712 P081 20 A 713 P081

Look at the monitoring modules, the options and examples of use of our pump protection relay.

Monitoring module Options Example of use
1x Motor temperature PTC, Pt100, Pt1000, Bimetal, external relay contact Motor temperature sensor, NC contact of an external protection relay
1x Temperature 1 PTC, Pt100, Pt1000 Bearing temperature, winding temperature, mechanical seal, etc.
1x Temperature 2 PTC, Pt100, Pt1000 Bearing temperature, winding temperature, mechanical seal, etc.
1x Leakage 1 Resistance below, exceed resistance Resistance measurement between leakage electrodes, resistance measurement from leakage electrode to pump housing
1x Switching input Normally closed, normally open, reset Float switch, reset button
1x Analogue input 0 - 20 mA, 4 - 20 mA 2-wire sensors without own power supply: vibration sensor, pressure sensor, etc.
1x Phase monitoring Phase sequence, phase failure, phase asymmetry, undervoltage, overvoltage, run detection Measuring range phase-phase
1x Current monitoring Falling below current, Exceed current Detect overload (e.g. clogging of a pump)
1x Power measurement Apparent power, active power, reactive power, cosφ Detect underload (e.g. dry run of a pump), energy meter
1x Relays 1 Alarm Shutdown when exceeding limit value or when falling below limit value (e.g. motor temperature, temperature 1, temperature 2, leakage 1, etc.)
1x Relays 2 Warning Warning when exceeding limit value or when falling below limit value (e.g. motor temperature, temperature 1, temperature 2, leakage, etc.)
1x Interfaces Diagnostic Port (DP) Connection of a USB gateway (INT600 DU Gateway) or a Bluetooth gateway (INT600 DB Gateway) to use the INTspector App
Modbus RTU (RS485) Retrieval of parameters and integration into the system control
1x Reset function Mains reset, external reset Resetting the interlocked shutdown as soon as there is no longer an error

Product presentation protective relay INT69 PYF Diagnose PREMIUM

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INT69 MOtorschutzrelais Übersichts Video

Benefits of Premium Protection Relays

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The most frequently asked questions about the
INT69 PYF Diagnose PREMIUM

What functions does the INT69 PYF Diagnose offer?

The protection relay connects pump, protection function and digital world. With the help of the integrated Modbus (RTU) interface, simple networking is possible. The protection relay monitors temperatures (3x inputs for PTC, Pt100, Pt1000 or bimetal), leakage (conductance measurement), analog input (0/4-20mA), voltage and current. The power measurement is suitable for operation with frequency converters. A relay each for alarm and warning provides the necessary operational safety.

What do I need to parameterize and read out the diagnostic data?

You need an end device, such as a laptop, cell phone or tablet with the KRIWAN INTspector App installed and a KRIWAN USB or Bluetooth gateway to establish the connection between INT69 PYF Diagnose and end device.

How do you recognize the current status (operating status)?

For quick and easy status indication and troubleshooting, a blink code is output via an LED on the front of the protective relay housing. This consists of a cyclic flashing sequence which can be looked up in the data sheet. 
For a more detailed view, the KRWIAN INTspector App is available. The diagnostic data provides an overview of the operating behaviour of your pump. Events, operating times, switching cycles and current measured values are displayed and help with detailed analysis on site. 

Which data is stored in the protection relay and for how long?

All events such as warnings, errors or messages are stored in a non-volatile internal memory and can be looked at via the INTspector App. The event memory contains the last 100 events with time and date. The last 10 events in each case are additionally recorded with extended data for all sensor inputs. There are also counters for all events.

What does the power measurement include?

Currents and voltages can be measured in the measuring range 20 - 100 Hz. The active, reactive and apparent power as well as the power factor cos ϕ are thus determined and output in the INT69 PYF diagnostic. In addition, counters for the drawn active and reactive energy are included in the integrated memory of the INT69 PYF Diagnose. This allows the energy consumption to be displayed transparently.   

Why is it sufficient to measure the current only at phase L1?

For three-phase motors, a symmetry of the motor windings is assumed. The total power on the three-phase motor is made up of three string powers. The INT69 PYF Diagnose determines the power in string L1 by means of measured current, voltage and phase angle. The total power is then determined from the ratio of the measured three phase voltages and the determined power of phase L1.

Is it possible to monitor AC motors (single-phase)?

Yes. For this purpose, a measuring tap (see also circuit diagram in the data sheet) of the outer conductor of the AC motor is made to the L1 terminal of the INT69 PYF Diagnose. It is also important to connect the FE terminal. The operating mode of the phase monitoring must then be changed to "monitoring of one phase" in the parameterization. 

What is the external relay contact at the motor temperature input?

This function can be used to connect an auxiliary contact (NC contact) of another relay required in the application to the INT69 PYF Diagnose. That way, the switching behaviour can be additionally recorded in the internal memory and integrated into a higher-level system control via Modbus. For example, this can be an ATEX certified relay for the motor temperature.   

What is the leakage input used for?

Submersible pumps and agitators, for example, are often already equipped by the manufacturer with moisture electrodes that can be monitored with the INT69 PYF Diagnose at E-, E+. These have the function of monitoring against penetrating medium or dry running. For this purpose, the resistance (conductance) between the two electrodes is measured. Depending on the application, the operating mode must be set to resistance exceeding or resistance falling below.

What is the switching input used for?

Depending on the application, a switching contact (normally closed, normally open) may be present on the monitored machine. For example, a float switch (normally closed contact) is often used for submersible motor pumps and can be monitored with switching input SC1, SC2 of the INT69 PYF Diagnose. Furthermore, this input can also be used as an external reset button (normally open contact). The according operating mode (normally closed contact, normally open contact, reset) must be set in the parameterization for that.

Which options are available to do a reset?

There are several options, such as disconnecting the supply voltage >5s of the INT69 PYF Diagnose (mains reset). Or by connecting an external reset button (normally open contact) to the switching input SC1, SC2.  The protection relay can only be switched back on after an interlocked switch-off after a reset has been done and if there is no longer an error.      

Which functions do the relays of the INT69 PYF Diagnose have?

The INT69 PYF Diagnose has an alarm and a warning relay. If an error or warning is detected, the alarm or warning relay drops out. For each input, it is possible to parameterize the warning, setpoint and switch-off values, tripping and restart delays and an interlocked switch-off. In addition, the warning relay can be activated or deactivated in the parameterization for each input. The alarm relay is always active as soon as an input is actively monitored. The two relays operate according to the closed-circuit current principle.

How is the KRIWAN protection relay integrated into the higher-level system control?

The INT69 PYF Diagnose offers an integrated Modbus RTU interface (RTU). This can be used for communication with the control system. An additional Modbus gateway (e.g. INT600 DM Gateway) is not absolutely necessary here.

What is included in the scope of delivery?

The packaging contains the respective protection relay (depending on the voltage variant AC/DC 24V or AC 100-240V) and the brief instructions. In addition, terminating resistors for Modbus communication are included in the scope of delivery. The INT185 Current Transformer with a measuring range of up to 100A and up to 250A is not included in the scope of delivery and must be ordered separately.

What is the factory setting (default) of the KRIWAN protection relay?

All KRIWAN pump protection relays are delivered with a factory setting. The one for the INT69 PYF Diagnose can be found on the product page in the download area as a parameter list. The parameterization can be individually adapted to your application during installation and commissioning using the KRIWAN INTspector App.

Who can I contact if I have any questions?

We are happy to help you with your questions. Simply use the contact form on our homepage and send us a request. Our customer support will get in touch with you.

Accessories

Find the right accessories for our products.

INT 185 Current transformer

Connect your INT69 PYF Diagnose PREMIUM with the INT185 Current transformer

Learn more

Modbus-Gateways

Connect your KRIWAN diagnostic devices via Modbus gateway

Learn more

USB-Gateway

Connect your KRIWAN diagnostic devices to the INTspector app via USB gateway

Learn more

Bluetooth-Gateway

Connect your KRIWAN diagnostic devices to the INTspector app via Bluetooth gateway

Learn more

DP cable

For the right connection between your protection device and the gateway

Learn more

INTspector App

For parameterizing your device and reading out all important data

Learn more

Other interesting products

Do you already know our extensive product range?

INT69 YF Diagnose EXTENDED

INT69 YF Diagnose STANDARD

INT69 F Diagnose BASIC

You have further questions? Our experts will be pleased to advise you!

Mathias Stratyla

Market Manager

+49 (0) 79 47 - 8 22 - 0
sales@kriwan.de