Page 815 - ABB_Motor _Protection_and_Control_catalogue_20221216

ABB MOTOR PROTECTION AND CONTROL 8/9

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Smart monitoring relays

Technical data

Data at Ta = 25 °C and rated values, unless otherwise indicated

Type CM-TCN.011 CM-TCN.012
Input circuit A1-A2
24-240 V AC/DC*
Rated control supply voltage U s
Rated control supply voltage U s tolerance -15 ... +10 %
Rated frequency AC 50 - 60 Hz
Frequency range AC 45 - 66 Hz
Typical current consumption 24 V AC/DC typ. 30 mA / max. 40 mA
115 V AC typ. 16 mA / max. 20 mA
230 V AC typ. 13 mA / max. 15 mA
Power failure buffering time min. 20 ms
Measuring circuits xT1, xT2, xT3
Sensor type PT100, PT1000**, PTC, NTC, bi-metal switch
Connection of the sensor 2-wire yes, jumper xT2 - xT3
3-wire yes, use terminal xT1, xT2, xT3
Interrupted wire detection yes
Short-circuit detection yes 08
Measuring ranges PT100 -200 °C … +850 °C / -328 °F ... +1562 °F
PT1000 -200 °C ... +850 °C / -328 °F ... +1562 °F**
NTC +80 °C ... +155 °C / +176 °F ... +311 °F
PTC max. total resistance of connected resistors in cold state <750 Ohm
Monitoring functions undertemperature, overtemperature, window monitoring
Measuring input range -200 … +850 °C / -328 … +1562 °F
Hysteresis related to the threshold values 1 … 99.9 °C / 1.8 … 179.8 °F
Measuring principle continuous current
Typical current in the sensor circuit PT100 0.5 mA
PT1000 0.5 mA
Maximum current in sensor circuit 0.5 mA
Measuring accuracy ± 0.5 K (-50 ... +200 °C / -58 ... +392 °F)
± 1 K (< -50 °C / -58 °F and > 200 °C / 392 °F)
Accuracy within the rated control supply voltage tolerance < 0.05 % full scale/1 V
Accuracy within the temperature range < 0.05 % full scale/1 K
Repeat accuracy (constant parameters) ± 0.07 % full scale
Maximum measuring cycle < 2 s
Maximum cable length 500 m / 1 mm (shielded cable)
2
Control circuits
Type of triggering volt-free triggering
Control function S1 remote reset
Maximum input current < 1.5 mA
Maximum no-load voltage at the control inputs < 15 V
Minimum control pulse length 150 ms
Maximum cable length at the control inputs 100 m - 100 pF/m
* CM-TCN.011: supply voltage 24-240 V AC/DC for revision G or later and supply voltage 24 V AC/DC for revision F or earlier.
** When CM-TCN is used with PT1000 sensors, a bridge must be installed between terminals xT2 and xT3 of unused measuring circuits. The bridge must
also be installed between open terminals xT2 and xT3 when CM-TCN is used with one or two PT1000 in combination with PTC or NTC or bimetal switch.