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参数资料
| 型号： | PRS11011 |
| 厂商： | Red Lion Controls |
| 文件页数： | 2/4页 |
| 文件大小： | 0K |
| 描述： | SPEED SWITCH 115AC 10-100HZ |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | Q6791396 |
PRS1 APPLICATIONS
The following guidelines and considerations will help to assure the best
performance when applying the PRS1 Speed Switch.
1. SENSOR AND FREQUENCY RANGE SELECTION
(See “PRS1 Sensor & Frequency Range Selection” section.)
2. RESPONSE TIME
The PRS1 has an internal adjustable timer whose “time-out” period is
determined by the set-point adjustment. In operation, this timer is reset
(retriggered) at the start of each signal cycle and the internal logic circuitry
monitors whether the signal cycle concludes before time-out occurs
(overspeed) or if time-out occurs before conclusion of the signal cycle
(underspeed). This operating scheme results in an inherent delay in output
switching response which is insignificant at moderate and higher frequencies,
but can be appreciable at low frequencies. For example, with the PRS10011
(Range 0.1 to 1 Hz) set to the minimum range, underspeed output will not
occur until 10 sec after the initiation of the last signal cycle. Overspeed
response is directly related to the period of the signal frequency and will be
faster, depending on the amount of overspeed.
The inherent delay at low frequencies can be an advantage when the PRS1 is
applied as a zero-speed switch. However, for fast response, a higher
frequency unit with an appropriate sensor arrangement should be used. This
can often be accomplished simply by moving the sensor to a higher speed
shaft, or by going directly to the drive motor shaft with an ARCJ Ring Sensor
Kit. (See Sensor Section of the RLC Catalog.)
3. ERRATIC OR IRREGULAR SHAFT MOTION
Since the PRS1 operates by timing each successive signal cycle, relay chatter
can be experienced when the set-point speed is adjusted close to the running
speed and the motion of the sensor shaft is irregular. For example, if a sensor
detects teeth of the driven sprocket in a chain drive with a good deal of chain
slack, the period between adjacent signal cycles can vary as much as 2:1 as the
driven sprocket alternately overhauls and takes up slack. This does not present
a problem if the set-point is adjusted at 5 or 10% of running speed, but if the
set-point is to be 90% of running speed, the PRS1 output will chatter as the
chain picks up and gives out slack. Again, the solution to this problem is to
locate the sensor at a point in the drive train where the motion is smooth.
Note: The PRS1 has built-in hysteresis of 5% of set-point speed, i.e. underspeed
output occurs at 95% of the overspeed set-point. This allows a set-point near
running speed provided shaft motion is reasonably smooth.
4. OVERSPEED OPERATION AND HI-FREQUENCY SENSOR
DROPOUT
All ranges of PRS1 units can be operated in the overspeed condition up
through 10 KHz without experiencing operational discontinuities. However,
when subject to higher input signal frequencies (12 to 15 KHz), signal roll-
off will occur in the input circuit and the output will transfer to underspeed
as if the signal had dropped to zero frequency.
Sensor signal drop-out at high frequencies will also cause a false underspeed
output. Caution is advised when selecting proximity, photo-electric, and other
sensors that have limited high frequency ratings, to ensure that their maximum
output frequency limit is not exceeded at maximum machine speed.
OPERATING MODES
MODE A:
LOW SPEED OPERATE, OVERSPEED
Internal relay is energized at all speeds below the set-point
speed, and de-energizes when speed exceeds the set-point
speed. Relay again energizes when speed drops approximately
5% below the set-point speed.
MODE B:
HIGH SPEED OPERATE, UNDERSPEED
DROPOUT
Internal relay is de-energized at all speeds below the set-
point speed, and energizes when the speed exceeds the set-
point. The relay again de-energizes when the speed drops
approximately 5% below the set-point.
MODE C:
LATCH, HIGH SPEED OPERATE,
UNDERSPEED DROPOUT
Pushing the Start button energizes the internal relay and
starts the machine. When operating speed is reached, the relay
stays latched with the Start button released. If the machine
speed drops below the set-point, the relay unlatches, sounding
the alarm and stopping the machine.
MODE D:
LATCH, LOW SPEED OPERATE, OVERSPEED
DROPOUT
Pushing the Start button energizes and latches the relay and
starts the machine. The relay stays latched as long as machine
operates below set-point speed. If the machine exceeds the
set-point speed, the relay unlatches, sounding the alarm and
stopping the machine.
ORDERING INFORMATION
PART NUMBERS FOR AVAILABLE SUPPLY VOLTAGES
MODEL NO.
DESCRIPTION
A.C. POWER
0.1-1 Hz
1-10 Hz
10-100 Hz
100-1 KHz
1 K-10 KHz
PRS1
Speed Switch
115 VAC
230VAC
PRS10011
PRS10012
PRS10101
PRS10102
PRS11011
PRS11012
PRS11021
PRS11022
PRS11031
PRS11032
__
Socket, 12-Pin
2300200
2
相关PDF资料 |
PDF描述 |
|---|---|
| PS11011 | MOD IPM 3PHASE IGBT 600V 2A |
| PS11012 | MOD IPM 3PHASE IGBT 600V 4A |
| PS11013 | MOD IPM 3PHASE IGBT 600V 8A |
| PS11014 | MOD IPM 3PHASE IGBT 600V 15A |
| PS11015 | MOD IPM 3PHASE IGBT 600V 20A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PRS11012 | 制造商:Red Lion Controls 功能描述:SPEED SWITCH, 10-100 HZ, 230V 制造商:Red Lion Controls 功能描述:10-100 HZ 230V |
| PRS11021 | 制造商:Red Lion Controls 功能描述:SPEED SWITCH, 100-1000 HZ, 115V 制造商:Red Lion Controls 功能描述:100-1000 HZ 115V |
| PRS11022 | 制造商:Red Lion Controls 功能描述:SPEED SWITCH, 100-1000 HZ, 230V 制造商:Red Lion Controls 功能描述:100-1000 HZ 230V |
| PRS11031 | 制造商:Red Lion Controls 功能描述:SPEED SWITCH, 1000-10,000 HZ, 115V 制造商:Red Lion Controls 功能描述:1000-10,000 HZ 115V |
| PRS11032 | 制造商:Red Lion Controls 功能描述:SPEED SWITCH, 1000-10,000 HZ, 230V 制造商:Red Lion Controls 功能描述:1000-10,000 HZ 230V |
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