Speed Monitor
KHU8-DW-1.D
Technical description
The KHU8-DW-1.D is a device used to
indicate and monitor periodic signals
which occur in almost all areas of automation
and process engineering, i.e. frequencies in general and rotational speeds in particular.
The input signals are evaluated using the cycle method, i.e. by measuring the duration of a period, and then converted by
a very fast
碌-controller
to frequency, or rotational speed.
The frequently occuring special case of rotational speed measurement was given particular attention. For this reason,
indications
and
inputs
can be either in
Hz
or in
rpm.
In addition, the possibility exists, on applications involving lengthy processes, whose sensors provide a
number of pulses
per revolution,
to operate automatically with the
actual rotational speed
of the drive, by presetting the number of pulses.
Indication of the measured value is achieved by means of a
4-digit 7-segment-LED-display
on the front of the device, with
up to 3 places following the decimal point.
The monitoring function is actuated by a
limiting value,
whose upper and lower hysteresis values can
be selected
within
the appropriate measuring and indicating range.
The
output signal
is generated by a change-over relay when the hysteresis limits are either
exceeded or fallen below.
Due to its high switching capability, the relay output can be used to
directly drive
an actuator, or as an
input signal to a
higher level control.
In addition, the switching state of the relay is indicated by
a yellow LED
on the front face of the device.
A function block is connected in line with the output relay, which enables
10 different timer functions
to be employed;
thus there is no need to connect a separate timer relay in series. In addition to
ON delay and OFF delay, defined ON time
and pulse lengthening,
the
direction of operation of the relay,
i.e. to monitor underspeed or overspeed, can also be
selected. The built-in
start-up bypass,
triggered by switching on the supply voltage, or by an external signal,
prevents
false signals
from occuring during the start-up of the monitored system.
The speed monitor may be supplied with
115 VAC, 230 VAC or 24 VDC.
When an alternating voltage is connected, a
24 VDC source is available for the signal transducer.
All currently available
two-, three- or four-wire proximity switches
and incremental
rotary encoders
are accepatable as
the
sensor.
Moreover two terminals are reserved for the connection of
proximity switches to DIN 19234 (NAMUR).
Connection diagram
Bridge fitted:
start-up bypass triggered by
switching on the power supply.
3
Sensor power supply
24 VDC
NAMUR Sensor
NAMUR +
9
9
L+
8
8
L-
NAMUR Rotary encoder
9
8
L-
L+
TX
2
External trigger signal
Trigger input for
start-up bypass
Sensor power supply
GND
NAMUR 鈥?/div>
1
DC-3 wire sensor
PNP
Sensor power
supply
24 VDC
13
L+
13
15
7
Input for
PNP Output
circuit
Input for
NPN Output
circuit
Sensor power
supply
GND
15
DC-2 wire sensor
13
L+
15
7
Rotary encoder,
Push-pull
output stage
13
L+
TX
DC-3 wire sensor
NPN
13
L+
14
6
Not connected
L-
7
L-
or
Power
supply 230 VAC
or
Power
supply 115VAC
COM
NC
NO
yellow
TX
Relay
output
11
10
15
7
L-
14
7
L-
34
Subject to reasonable modifications due to technical advances.
Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group 路 Tel.: Germany (6 21) 7 76-11 11 路 USA (3 30) 4 25 35 55 路 Singapore 7 79 90 91 路 Internet http://www.pepperl-fuchs.com
Date of issue 12.11.1996
錚?/div>
錕?frac12;
錚?/div>
錚?/div>
錕?frac12;
錚?/div>
錚?/div>
錕?frac12;
錚?/div>
Power
supply 24 VDC
4
5
L+
L鈥?/div>
DC-2 wire sensor
16
L1 (230 V~)
18
N
17
L1 (115 V~)
14
14
7
L-
Rotary encoder,
Push-pull
output stage
13
L+
12
35742 產(chǎn)品屬性
0現(xiàn)貨查看交期
1 : ￥283.34000盒
Menda? Pure-Take
盒
在售
瓶子，圓柱形/圓形
泵
4盎司
-
-
-
4.250"（107.95mm）
棕色
玻璃，塑料溶膠
-
35742相關(guān)型號(hào)PDF文件下載
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英文版
BOTTLE WITH ONE-TOUCH PUMP AMBER
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英文版
BOTTLE WITH PURE-TOUCH PUMP AMBE
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英文版
SPEED MONITOR CONTROLLER
ETC
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英文版
BOTTLE WITH LOCKING PURE-TAKE PU
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英文版
BOTTLE WITH LOCKING TAKE-ALONG P
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BOTTLE NO PUMP AMBER IMPACT RESI
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