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DSP-CCM-N Digital Motor Protection Relay/C Series,meter ON-OFF,RS485
Digital Motor Protection Relay/C Series,meter ON-OFF,RS485
Main Feature
  • Panel Flush Mounting Type
  • Access restricted to authorized operator : Password
  • To be able to control motor and to indicate operation state through multi-function meter
    • Convenient selection for control position/press 1sec : Logic key/RCS↔MCC(Meter)
    • Operating state indication : Run-Stop,Load factor,Trip,Test
    • Convenient reset for trip event : “RESET” key
    • Load factor indication by actual value
  • To show a trip cause and operational information in a character and/or a number : 5 Digit Window
  • Logic key Function
    • this key becomes disable during an motor operation
    • this key becomes able state while motor is tripped under RCS operation mode → naturally change into “MCC” operation mode
  • To indicate a necessasary information in every 3 sec: current(L1,L2,L3),earth current, load factor
  • Possible to use various rated ZCT to sense a zero phase current for GF protection
    • DSP-CCM-N-A : 200mA/1.5mA
    • DSP-CCM-N-V : 200mA/100mV
    • Optional type : to use embedded ZCT(not available for external CT application)
  • RS485 Serial network Communication, Modbus/RTU
    • Possible to monitor the operation data by "Samdsp"
    • Possible to construct data base for the operation data by "Samdspdb”
  • to check and/or to change preset value of each mode during the operation
    • Possible to check :press "SET" key
    • Possible to check and to change : firstly make "oPSEt" mode "on",then press "SET" key
  • Highly sensitive level and wide range for ground fault protection : 50mA∼2A/Zero-phase sequence current
  • Alarm for disconnection with ZCT
  • Various way to reset after trip: Manual,Electrical or Automatic /to response flexibly for applied sequence system
  • To keep a stable operation under frequency variation from Inverter : 30Hz∼300Hz
  • Self-diagonostic test by one touch for "CLR" key
  • History,Latest 8 trip events
Technical Specification
  • Current rating
    • 10 Type : 0.5A∼10A / 0.5A~6A with external CT
    • 60 Type : 5A ∼70A
    • External CT : 1A ∼ 1200A
  • Operation Time
    • Starting trip delay time(dt) : 1 ~ 300sec /Definite T-I
    • Over current trip delay time(ot) : 1~60sec/Definite T-I
      • definite T-I:1~60sec
      • Inverse:1~30Class /800% to "oc": 10 type/0.5~6A,70 type:5A~40A
    • Under current trip delay time : 1~30sec
    • Phase loss trip delay time(PLc) : 1~5sec
    • Reverse phase trip delay time : within 0.5sec
    • Ground fault trip delay time : Edt/1~25sec,Eot/1~30sec
    • current unbalance trip delay time : 8sec
    • locked rotor trip delay time : dt+0.1sec
  • Allowable tollerance
    • Current : C≤2A : 0.2A, C>2A : ±5%
    • Time : t≤2sec : ±0.2sec, t>2sec : ±10%
    • Control power : 24VDC (Optional Type)
  • Trip output
    • Main : 95-96-98 : 1c(1-SPDT), 250VAC/3A, 30VDC/1A, Resistive
    • Logic/F-R-RCS : 1a(1-SPST)*3,250VAC/3A,30VDC/1A,Resistive
  • Application environment
    • Operation : -25℃ ~ +70℃
    • Storage : -40℃ ~ +80℃
    • Relative humidity : 30∼85%, non-condensing
  • Stable operation under frequency variation from Inverter : 30Hz ∼ 400Hz  ,avg ±5% 
  • Screw Torque : Max 0.6N.m
  • Insulation Resistence / IEC-60255-5 : circuit-case, 10Mohm , 500VDC
  • High Voltage Withstand Test : IEC-60255-5
    • circuit-case : AC2000V, 60Hz, 1min
    • contact-contact : AC1000V, 60Hz, 1min
  • Lightning Impulse Voltage Withstand Test : IEC-60255-5
    • Circuit-Ground, Circuit-Circuit : 1.2/50uS, 5KV
    • Control Circuits : 1.2/50uS, 5KV
  • 1MHz Burst Immunity Test / IEC 61000-4-18 : 2.5KV, Positive / Negative under 2sec
  • Electrostatic Discharge : IEC-61000-4-2
    • Air : Level 3, 8KV
    • Contact : Level 13, 6KV
  • Radiated Electromagnetic Field Disturbance / IEC-61000-4-3 : Level 3, 10V/m
  • Electric Fast Transient Burst : IEC-61000-4-4
    • power,relay output : Level 4, 4KV
  • Surge Immunity test : IEC-61000-4-5
    • relay output : 1.2×50uS, 2KV(0°, 90°, 180°, 270°)
  • Conducted Disturbence Test / IEC-61000-4-6 : 10V, Level 3
  • Control Voltage : 100~240VAC/Standard, 24VDC/Optional
  • Digital Communication
    • Physical : 2 wire,RS485/Modbus RTU
    • Address :1~250
    • Speed : 9.6/19.2/38.4/57.6/76.8/115.2kbps
    • Cable :Sheathed 2 Pair
  • Power consumption : 4W Max
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