静止和旋转方向监视器 KFD2-SR2-2.W.SM
来源：未知 日期：2017/03/01 浏览量：次
● 2-channel signal conditioner
● 24 V DC supply
● PNP/push-pull, dry contacts or NAMUR inputs
● Selectable frequency trip values
● 2 relay contact outputs
● Start-up override
● Selectable mode of operation
● Up to SIL 2 acc. to IEC 61508
| General specifications： | ||
|---|---|---|
| Signal type | Digital Input | |
| Supply： | ||
| Connection | terminals 14+, 15- | |
| Rated voltage | 20 ... 30 V DC | |
| Power consumption | max. 1.5 W | |
| Input： | ||
| Connection |
Input I: terminals 1+, 2+, 3- ; Input II: terminals 4+, 5+, 6- |
|
| Rated values | acc. to EN 60947-5-6 (NAMUR) | |
| Open circuit voltage/short-circuit current | approx. 8 V DC / approx. 8 mA | |
| Switching point/switching hysteresis | 1.2 ... 2.1 mA / approx. 0.2 mA | |
| Line fault detection | not available | |
| Control input | sensor power supply approx. 8.2 V, impedance 1.2 kΩ | |
| Pulse duration |
> 200 µs for standstill monitoring, > 250 µs for rotation direction detecion |
|
| Output： | ||
| Connection |
output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12 |
|
| Relay | 2 changeover contacts | |
| Contact loading | 253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load | |
| Minimum switch current | 2 mA / 24 V DC | |
| Energized/De-energized delay | approx. 20 ms / approx. 20 ms | |
| Mechanical life | 107 switching cycles | |
| Trip value |
for standstill monitoring: 0.1 Hz; 0.5 Hz; 2 Hz; 10 Hz adjustable via DIP switch (S1 and S2) |
|
| Transfer characteristics： | ||
| Accuracy | 5 % (S3 = I), 30 % (S3 = II) | |
| Start-up override | 5 seconds or 20 seconds, programmable | |
| Frequency range | ≤ 2 kHz | |
| Rotation direction detection | 90° phase difference between pulse input signal 1 and 2, overlapping ≥ 125 µs | |
| Directive conformity： | ||
| Electromagnetic compatibility | ||
| Directive 2014/30/EU | EN 61326-1:2013 (industrial locations) | |
| Low voltage | ||
| Directive 2014/35/EU | EN 61010-1:2010 | |
| Conformity： | ||
| Electromagnetic compatibility | NE 21:2006 | |
| Degree of protection | IEC 60529:2001 | |
| Ambient conditions： | ||
| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) | |
| Mechanical specifications： | ||
| Degree of protection | IP20 | |
| Mass | approx. 150 g | |
| Dimensions | 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2 | |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 | |