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Electro-RRP1-Tachometer

Tachometer Relay – RRP1

R528.64

Thermistor motor protection unit which interfaces directly to a PTC sensor to provide protection of motors, alternators, transformers, etc. The unit will trip if the nominal trip temperature for the sensor is exceeded.

 

Microprocessor based MULTI – function tachometer relay with four selectable speeds. The unit can be selected for OVER and UNDER speeds and interfaces directly with a Namur two wire proximity sensor or limit switch.

 

Features:

 

  • Microprocessor controlled
  • Failsafe feature
  • Front face adjustable time range and function settings
  • Front face adjustable time settings
  • Modular 35.5mm DIN rail mountable
  • 0.3 – 60 hrs Adjustable time ranges
  • 8 Selectable functions
  • 10A SPDT output relay
  • LED indication for relay and power supply ON
Clear selection
Category:

Description

Function 1: Over Speed

 

The relay will de-energize if the speed exceeds the set limit. If the speed reduces by 5% of the set value the relay will energize.

 

Example:

 

starter motor disabling on generator.

 

Function 2: Under Speed

 

The relay will de-energize if the speed exceeds the set limit. If the speed increases by 5% of the set value the relay will energize.

 

Example:

 

starter motor disabling on generator.

 

Speed Specifications:

 

Speed Ranges
Speed RPM 1-10 (60s)
(Response Time) 10-100 (10s)
100-1000 (6s)
1000-10000 (1sec)
Range Accuracy ≤ 0.5%
Scale Accuracy ± 5%
Repeat Accuracy ± 0.2%
Time Variation ≤ 0.05% / V
within rated power supply and ambient temperature ≤ 0.2% / °C
Reset Time 500 ms

Output Specifications:

 

Output Specifications SPDT
Rated Isolation Voltage 6000 VAC (contact / electric)
1000 VAC (contact / contact)
Nominal Rate in AC1 (AG-Ni) 1500 VA
Rated Current 5A
Rated Voltage 250V
Mechanical Life 10×106 cycles
Electrical Life 10×103 cycles (at max load)
Operation Frequency ≤ 1800 cycles/h

Supply Specifications:

 

Power Suppy AC Type
(Galvanic)		 110, 230, 400V, 525V ±
10% 50 / 60 Hz ± 5Hz
Isolation 4kV
Consumption ± 3VA
±6 VA 525 V
Power Suppy DC Type (Non-galvanic) 12, 24, 48V ± 10%
Isolation None
Consumption ± 3VA
± 100mA

General Specifications:

 

Power ON Delay ≤ 300 ms
Power OFF Delay ≤ 200 ms
Indication for
Power Supply LED red
Output ON LED green
Environment
Degree Of protection IP 20
Operating Temperature -10 to + 50°C
Storage Temperature -50 to + 85°C
Weight 200g

Additional information

Supply Voltage

525Vac, 400Vac, 230Vac, 110Vac, 48Vac/dc, 24Vac/dc, 12Vac/dc

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