参数资料
型号: 84872151
厂商: Crouzet USA
文件页数: 3/5页
文件大小: 0K
描述: CONTROL VOLT CNTRL 20-80VAC/DC
其它有关文件: Declaration of Conformity
标准包装: 1
系列: *
10/04/2014
www.crouzet.com
Overvoltage function relay
Undervoltage underload function relay
Controlled signal
Delay on threshold crossing (Tt)
Principles
If "with memory" mode has been selected, the relay opens and stays in this position when threshold crossing is detected. The power supply must be disconnected to reset the product.
N o
Legend
Threshold
Hysteresis
Overvoltage function relay
Undervoltage function relay
Controlled signal
Delay on threshold crossing (Tt)
Principles
MUSF relays operate in window mode : they check that the controlled voltage stays between a minimum and maximum threshold.
The under and overvoltage threshold values are set by two graduated potentiometers by reading the Un scale to be monitored directly.
The hysteresis is fixed, value : 3 % of the preset thresholds.
If the controlled voltage exceeds the preset upper threshold, or falls below the preset lower threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is
extinguished. During the time delay, this LED flashes.
Once the voltage returns to below the upper threshold value minus the hysteresis, or above the lower threshold value plus the hysteresis, the relay closes instantaneously.
When the unit is powered up with a measured fault, the relay stays open.
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
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