EXTA
Automation
buildings
PRODUCTS EXTA - BUILDING AUTOMATION
Digital voltage asymmetry and phase sequence senso r type: CAM-10
Product Description
CAM-10 is used for protection of devices supplied from a three-phase network (e.g. motors) against damage caused by loss of phase voltage or asymmetry of phase voltages. The device monitors also a correct condition of the contacts of the triggering contactor. The threshold value for tripping voltage is set by UP potentiometer from approx. 170V AC to approx. 200V AC. Shutdown delay is set by TP potentiometer in the range 0-9s. Additionally, the system has a constant voltage hysteresis of 5V AC and therefore it is resistant to a short-term voltage fluctuations. The device is equipped with an additional input for signalling of an emergency condition (loss of phase voltage or asymmetry). The system protects against symmetrical voltage drop.
PRODUCT FUNCTIONAL FEATURES:
- Protection against phase loss,
- Checking condition of the contactor contacts
- Resistance to short-term voltage drops
- Indicator lamp signalling voltages on the individual phases
- Protection against voltage asymmetry
- Adjustable value of asymmetry voltage (tripping threshold)
- Output for control of contactor
- Indicator lamp for activation and failure of the contactor
- Protection against symmetrical voltage drop
- Adjustable shutdown delay value
- Additional alarm output
Voltage measurement range 170-200 V
Phase failure monitoring Yes
Function under voltage detection Tak
Min. adjustable delay-on energization time 0,000 s
Max. permitted off-delay time 9,000 s
Power supply terminals L1, L2, L3, N
Rated supply voltage 230 V
Rated temperature -20/60 °C
Rated frequency 50/60 Hz
Protection degree IP20
Voltage control on individual phases 3 x dioda LED zielona
Contactor activation control Dioda LED
Contactor failure check LED red
Zaciski pomiarowe (mierzą poprawność napięcia) L1,L2,L3
Zaciski kontrolne (pomiar napięcia za stycznikiem) L1' , L2' , L3'
Output: contactor power supply Out 2 (oznaczone jako O2) - wyjście napięciowe zasilane z L1
Wyjście: sygnalizacja alarmu sklejenia styków stycznika Out1 (oznaczone jako O1) - wyjście napięciowe zasilane z zacisku L1
Regulacja progu napięcia Up: 170 - 200 V AC (+/- 10 V AC)
Voltage measurement method zgodna z TrueRMS (pomiar bierze pod uwagę przebiegi odkształcone)
Regulacja opóźnienia wyłączenia tp 0 - 9 s
Voltage hysteresis około 5 V AC
