Dold Industries Ltd

11 Hamberts Rd. Blackall Ind. Estate
South Woodham Ferrers
GB-Essex, CM3 5UW
MH 9055

Speed Monitor

MH 9055

Contacts

Auxiliary voltage

Response value

Variant

  • 0065253
  • MH9055.12 1-120000IPM AC/DC110-230V
Speed monitoring on rotating machine parts Monitoring of cyclic movements General... more

Product description

  • Speed monitoring on rotating machine parts
  • Monitoring of cyclic movements
  • General monitoring of pulse sequences (transportation, conveyors, production systems),
  • Monitoring of pulse frequency (e.g. flow sensors, anemometers)

Technical specifications

Enclosure design: Switch cabinet
Width: 45 mm
Output contacts: 2 Wechsler
Measuring range max.: 120000 IPM
Type: MH 9055

Advantages

  • Protection of persons, machines and products
  • Easy setting
  • Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage)
  • With fast reaction at low speed

Features

  • According to IEC/EN 60 255-1
  • Detection of high or low-rpm / stand still (adjustable function)
  • Large setting range 1 ... 120.000 IPM or 0.15 ... 20.000 Hz (10 ranges each)
  • As option with input for NAMUR-sensors with sensor and
    wire protection against interruption and short circuit
  • Adjustable hysteresis 0.5 ... 50 %
  • Adjustable start up time delay 0 ... 50 s, control with external contact
  • Adjustable monitoring time for missing input signal at function
    overfrequency; additional using as standstill level
  • Programmable via termminals:
    - Alarm delay of 0 ... 100 s
    - with manual reset or auto reset
  • LED-indication for auxiliary voltage, measuring input and output relay;
    additional LED for indication of wire- / sensor failure at NAMUR-input
  • Auxiliary voltages AC 230 V and DC 24 V in one unit
  • 2 changeover contacts, closed circuit operation
  • Open circuit operation on request
  • As option with analogue output, proportionally to speed
  • Device available with 2 response values and seperately controlled
    output relays for under- and overfrequency see MK 9055N/5_ _
  • MH 9055 with wide input range for auxiliary voltage
    (AC/DC 24 ... 60 V or AC/DC 110 ... 230 V)
  • 2 possible compact designs
    MK 9055N: Width 22,5 mm
    MH 9055: Width 45 mm