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CKF-318 TRMS
Phase loss and phase
sequence sensor
Do not dispose of this device in the trash along with other waste!
According to the Law on Waste, electro coming from households free of charge and can
give any amount to up to that end point of collec� on, as well as to store the occasion of
the purchase of new equipment (in accordance with the principle of old-for-new, regard-
less of brand). Electro thrown in the trash or abandoned in nature, pose a threat to the
environment and human health.
Purpose
The CKF-318 phase loss and phase sequence microprocessor
sensor without neutral wire is designed to protect electric motor
powered from the three-phase network in following cases:
» voltage loss in at least one phase;
» voltage drop in at least one phase below 320 V;
» voltage increase in at least one phase above 480 V;
» voltage asymmetry between phases above the set value;
» incorrect phase sequence.
The sensor correctly measures the true rms value of the
voltage (TrueRMS), even when the power supply voltage
is (disturbed) distorted.
F&F Filipowski sp. j.
Konstantynowska 79/81, 95-200 Pabianice, POLAND
phone/fax (+48 42) 215 23 83 / (+48 42) 227 09 71
www.fif.com.pl; e-mail: biuro@fif.com.pl
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Summary of Contents for F&F CKF-318 TRMS
- Page 1 Konstantynowska 79/81, 95-200 Pabianice, POLAND phone/fax (+48 42) 215 23 83 / (+48 42) 227 09 71 www.fif.com.pl; e-mail: biuro@fif.com.pl CKF-318 TRMS Phase loss and phase sequence sensor Do not dispose of this device in the trash along with other waste! According to the Law on Waste, electro coming from households free of charge and can give any amount to up to that end point of collec�...
- Page 2 Functioning The correct power supply voltage is indicated by a green LED. Voltage drop below 320 V or increase above 480 V for at least one phase or voltage asymmetry above the set value is signaled by the green LED going off. Both of the above anomalies (exceeding the voltage threshold, asymmetry) cause the relay of the device to be switched off and, as a result, the motor to be disconnected.
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Page 3: Front Panel
Front panel - 3 -... - Page 4 Signalling table Signalling Description Correct network parameters, the relay is on Countdown to switch-on or switch-off of the relay (depending on the current state of the output) Asymmetry or exceeding of the voltage threshold. Relay switched off (voltage value of any of the phases below 150 V or above 280 V or asymmetry above the set value)
- Page 5 Voltage waveforms - 5 -...
- Page 6 If a voltage drop below 320 V or rise above 480 V is detected, the relay will be switched off with a delay of 1s. In this case, both LEDs will be off. If the phase voltages return to normal values, the relay will be switched on after T2 time.
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Page 7: Wiring Diagram
11. Swap the 2 phases (for example, L2 with L3).. 12. Switch on the power supply – the motor can be started. 13. In any other case than those described in points 8 and 9, see the signaling table (page 4). Wiring diagram - 7 -... -
Page 8: Contacts Configuration
Contacts configuration The changeover contact of the relay allows to connect a visual or audible signalling system that informs abo- ut the relay activation, which means switching off the motor. Technical data power supply 3×400 V contact separated 2×NO/NC maximum load current (AC-1) 2×6 A power supply control 2×LED... -
Page 9: Warranty
terminal wire 2.5 mm² screw terminals cable 2.5 mm² screw terminals tightening torque 0,4 Nm dimensions 1 module (18 mm) mounting on TH-35 rail ingress protection IP20 Warranty The F&F products are covered by a warranty of the 24 months from the date of purchase. - Page 10 General work safety conditions » Please read the instructions carefully before installation. » The device should be installed and operated by qualified per- sonnel who are familiar with its design, operation, and asso- ciated risks. » Do not install a sensor that is damaged or incomplete. »...