Main Technical Parameters
1. Measurement speed range: 0~65535;
2. Measurement signal frequency range: 0.2~60kHz;
3. Input signal peak-peak value: >2V;
4. Control relay contact capacity: 3A/125VAC,3A/30VDC;
5. Transmission output: 4~20mA (load≤750Ω) Precision is better than ±0.05%F.S;
6. Working temperature: -20~75°C;
7. Working Humidity: 5~90% non condensing
8. Supply voltage: 24Vdc;
9. External power supply for sensors: 24Vdc, short circuit current limitation≤25mA.
OK light bright: Transmitter normal operation
OK light bright, alarm light bright: warn alarm
OK light bright, hazard light bright: dangerous alarm
OK light flickers, alarm light bright: set warn alarm value
OK light flickers, hazard light bright: set dangerous alarm value
Bypass light bright: in a dangerous bypass state
Speed adjustment coefficient
Speed measurement value may have some errors with the actual speed value, by setting speed
adjustment parameter can correct the errors.
Filter coefficient
If there are large fluctuations measured values by various causes in the measurement process, set the filter coefficient appropriately can make it stable.
Threshold voltage
In some applications, the duty cycle of the signal that picked up by speed sensor is very small or very
large, and there is big shaft vibration on the shaft, then adjust the parameter can obtain the best
threshold voltage.
Limiting threshold voltage
Limiting threshold voltage can improve the anti-interference ability of speed measurement. When the
limiting threshold voltage is larger, the anti-interference ability is better. But the limiting threshold voltage
is restricted by speed signal, when the speed signal has a large range, you can set a larger limiting
threshold voltage.
Alarm delay time
Alarm delay in unit of second, in 0 ~ 10 seconds can be set.
Connection instructions
Terminals description
Terminals | Function |
24V/I+ | Transmitter power positive/ current output positive |
I- | Current output negative |
GND | Transmitter output negative |
UT | 15V positive power outer supply for sensor |
IN | Sensor signal input |
COM | Sensor ground |
Transmitter output
Transmitter will converted the rotate value to a current signal of 4~20mA or 0~5V voltage
Upper and lower limits of the transmitter range
Transmitter output current 4~20mA and transmitter range lower limits and upper limits are linear relationship,
when the rotate speed value is less than the lower limits or greater than the upper limits, the output 4mA and
output 20mA unchanged.
Communication
YD240 Speed Transmitter can be connected to the computer or PLC to communicate, comply with RS485
transmission standards. The communication between transmitter with computer is followed the protocol of
ModBus-RTU.
Model selection :
YD 240-A00---B00--C00
A: measuring range:
01...measuring range 0---1000RPM
02...measuring range 0---2000RPM
03...measuring range 0---3000RPM
04.........
Note: if the range is not an integer, fill the actual range value. For example, range 0-500RPM, is A 500.
B: connect sensor signal
01...connect YD9800 eddy current sensor
02...connect YD60 passive magnetic sensor
03...connect YD62 hall speed sensor
04...photoelectric sensor
C: the number of pluses per revolution
01...1 plus
10...10plis
20...20plus
30....30plus
.............
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