Dynalco SWT-1000 User Manual

SWT-1000

Speed Switch / Transmitter

Operating Manual

3690 NW 53rd Street • Fort Lauderdale, FL 33309 • Ph 954-739-4300 • Fax [phone] • www.dynalco.com

TABLE OF CONTENTS

1. Product Features 1

2. Specifications 2

2.1 General 2

2.2 Inputs 3

2.2.1 Analog Sensor Connection (Sign) 3

2.2.2 Digital Sensor Connection (IQ) 4

2.2.3 Binary Input and Push Button 4

2.3 Outputs 5

2.3.1 Analog Output 5

2.3.2 Relay 6

2.3.3 Open Collector Output 6

2.4 Data Communication 6

2.4.1 Serial Interface (RS 232) 6

2.5 Environment 6

2.5.1 Climatic Conditions 6

3. Principle of Operation 7

3.1 General 7

3.2 Machine Factor 8

4. Installation 9

5. Connections 9

6. Hardware Configuration 10

6.1 Analog Sensor Input (Sign) 10

6.2 Digital Sensor Input (IQ) 10

7. Configuration with PC Software 11

7.1 Software Concept 11

7.2 PC Communications 13

7.3 PC Software Settings 11

7.3.1 Interface (Settings Æ Interface) 11

7.3.2 Display Interval (Settings Æ Di splay Int erval) 11

7.4 Parameter List and Ranges 12

7.5 Parameters 14

7.5.1 System Parameters (Configuration Æ System) 13

7.5.2 Sensor Parameters (Configuration Æ Sensor) 13

7.5.3 Analog Output (Configuration Æ Anal og Output) 14

7.5.4 Limits (Configuration Æ Limits) 15

7.5.5 Relay Parameter and Selection of Parameter Set 15

8. Operating Behavior 17

8.1 Power On 17

8.1.1 Analog Output 17

8.1.2 Relay Output 17

8.2 Measurement 17

8.2.1 The Adaptive Trigger Level 17

8.2.2 Signal Failure 18

8.3 Functions 18

8.3.1 Limits and Window Function 18

8.3.2 Parameter Sets A and B 18

8.3.3 Relay Hold Function 18

8.3.4 Push-Button 18

8.3.5 Binary Input 19

8.4 Fault Behavior 19

8.4.1 Sensor Fault (Sensor monitoring) 19

8.4.2 System Alarm 19

8.4.3 Alarm 19

8.5 Power Supply Interruption 20

9. Mechanical Construction / Housing 20

10. Accessories 20

11. Outline Dimensions 20

Operating Instructions SWT-1000 DYNALCO

1. Product Features

The model SWT-1000 speed switch / transmitter measures and monitors frequencies (speed
proportional values) in the range 0 to 35,000 Hz.

The following are available:

• 1 Current output

• 1 Sensor frequency output

• 1 Relay

• 2 Limits

• 2 Parameter sets – selectable via binary input

• Sensor monitoring

• System monitoring

The tachometers are configured via SWT -1000 PC configuration software.
All settings are in revolutions per minute (RPM).

Single channel tachometer, relay and 0/ 4-2 0mA current output

SWT-1000.r2.0609 1

Operating Instructions SWT-1000 DYNALCO

2. Specifications

2.1 General

SWT-1000
Lowest measuring
range
Highest measuring
range
Minimum response time
(Fix Time)
Effective Measuring
time

0.01 . . . 1.000 Hz

0.01 . . . 35.00 KHz
Selectable values: 2 / 5 / 10 / 20 / 50 / 100 / 200 / 500 ms

1 / 2 / 5 Seconds.
Is based on the minimum measuring time (Fix Time) and the measured
frequency.

• Input frequency period < Fix Time

Input
frequency

End of Fix Time

Input period

Fix Time

typically: t
max: t

= Fix Time

effective

= 2 x Fix Time

max

• Input frequency period > Fix Time

Input
frequency

End of Fix Time Ensuing edge

Fix Time time

Period of input signal

max: t

max

• In the event of sensor signal failure:
t

= Fix Time + (2 x last input frequency period)

effective

Resolution 0.05 %
Power supply range 10...36 VDC
Power consumption 10 V : 2.3 W

24 V : 2.6 W
36 V : 3.0 W

Isolation Galvanic isolation between:

• Power supply,

• Sensor input incl. sensor supply, Binary input, Seria l i n te rfa ce

• Analog output

• Relay output

• Open collector output

Isolation voltage 700 VDC / 500VAC

time

= 2 x input frequency period

SWT-1000.r2.0609 2

Operating Instructions SWT-1000 DYNALCO

2.2 Inputs

2.2.1 Analog Sensor Connection (Sign)

Frequency range (-3dB) 0.01 Hz / 35 kHz
Input impedance 30kOhm
Input voltage

• Max. 80V

•

100

10

Input voltage [Veff]

rms

Max. frequency against input voltage

O.K.

1

0.001

]

pp

NOT O.K.

0.01

0.1

1

10

Frequency [Hz]

Trigger: 500mVpp
Trigger: 20mVeff

100

1000

10000

100000

0.5 1 2.5 5 10 20

2000 667 333 200 166 125

Minimum positive pulse
width - digital signals
Input voltage

0.01

Signal
voltage [V

Min. Pulse
width [µs]

0.1

Sensor supply +14 V, max. 35 mA short circuit proof.

If the current limit activates, the sensor supply must be disconnected to reset the
protection.

Integrated pull-up 820 Ohm to +14V (configurable for 2 wire sensors with Jumper J1)
Trigger level Adaptive trigger level.

Configurable with Jumper J2:

• 250mV … 6.5V (>500mVpp) [Factory configuration]

• 28mV … 6.5V (>20mV

rms

)

Screen A terminal is provided for the sensor cable scre en. Th is terminal is connected to the

sensor supply 0V. (0VS)

Sensor monitoring 1 of 3 sett i ng s ma y be con figured via software:

• No Sensor Monitoring

• Monitoring of powered sensors

Also for 2 wire sensors supplied via the Pull-up resistor (Jumper J1)].

[
Æ The sensor is considered to be defectiv e if the sensor current consumption
falls outside of I
I

= 0.5…25mA

min.

= 0.5…25mA

I

max.

min

and I

• Monitoring of non powered sensors
For 2 wire sensors such as electromagnetic sensors.]

[

max

.

Æ The sensor is considered to be defective if the circuit is disconnected.

SWT-1000.r2.0609 3

Operating Instructions SWT-1000 DYNALCO

2.2.2 Digital Sensor Connection (IQ)

Frequency range (-3dB) 0.01 Hz / 35 kHz
Input impedance 46 K
Input voltage Max. ± 36V peek
Minimum pulse width Min. pulse width 1.5 µs
Sensor supply +14 V, max. 35 mA short circuit proof.

If the current limit activates, the sensor supply must be disconnected to
reset the protection.

Trigger level

Screen A terminal is provided for the sensor cable screen. This terminal is
Sensor monitoring 1 of 2 settings may be configured via software:

• min.U

• max.U

low

high

= 1.6 V

= 4.5 V

connected to the sensor supply 0V. (0VS)

• No Sensor Monitoring

• Monitoring of powered sensors

Also for 2 wire sensors supplied via the Pull-up resistor (Jumper J1)

[
].
Æ The sensor is considered to be defective if the sensor cu rr ent
consumption falls outside of I

= 0.5…25mA

I

min.

I

= 0.5…25mA

max.

min

and I

max

.

2.2.3 Binary Input and Push Button

Use For external selectio n of Parameter set A or B.

• Logic 1 = Parameter set A (Relay control A)

• Logic 0 = Parameter set B (Relay control B)

Levels Logic 1 = V > +3.5V

Logic 0 = V < +1.5V
Reference Sensor supply 0V
Max voltage 36V
Input resistance
Circuit Internal pull up resistance to 5V

R

= 10kΩ

min

Shorting the binary input to the sensor 0V

creates logic 0.

parameter set A B

+Bin

pushbutton

OVS

5 volts

SWT-1000

analysis

SWT-1000.r2.0609 4

Operating Instructions SWT-1000 DYNALCO

2.3 Outputs

2.3.1 Analog Output

Type Current
Load Max. 500 ohms
Open circuit voltage Max. 12V

Operating Mode

SWT-1000

0…20 / 4…20mA

[mA]

21
20

12

4

0

4...20mA mode

0...20mA mode

initial value final value

Transfer functions Normal or Inverse (rising or falling characteristic)

output

„normal“

speed

output

„invers“

Resolution 12 Bit (4096 Steps)
Max Linear error 0.1 %
Accuracy 0.5 % of the full range value.
Damping Hardware 11 ms + Software setting (Configuration)
Temperature Drift

Typically ± 100 ppm/K, max. ± 300 ppm/K
Reaction time Effective measuring time + 7.5ms

(minimal measured

speed

value)

speed

[rpm]

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