ioSelect DC to Frequency Isolating Signal Conditioner

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ioSelect DC to Frequency Isolating Signal Conditioner
UniPak™ UP475
DC to Frequency Isolating Signal Conditioner
• Selectable Current or Voltage Input Range
• Input Sensor Supply (20 Vdc @20 mA)
• Frequency Output from 0.5 pph to 10 kHz
• Open Collector or Reed Relay Output
• 3-Way Isolation
−1500 Vac Input/ Power/ Output
• AC or DC Power (19-40 Vdc or 19-28 Vac)
• DIN Rail Mount (TS 35)
• Removable Terminal Blocks
• LED Status Indicator
The UniPak™ UP475 converts a DC current or voltage signal to a proportional, linear frequency signal providing 1500 Vac
isolation between the frequency source, the dc output and power to the UP475. A typical application is totalizing
applications, where the total number of pulses counted in a given time period represents the time integral of the DC input.
If, for example, the input represents a flow in gallons per hour, then the time integral of this flow signal (total count) will
represent total gallons. The input of the UP475 can supply voltage for a 2-wire current loop, up to 20 V dc. There are two
output choices, an npn open collector or a reed relay. The open collector provides 30 V dc, up to 300 mA. The relay is rated
for 30 V ac or dc and 100 mA. The open collector output can be used to drive electronic counters or other high speed inputs.
The relay can be used to drive electromechanical counters when connected to an external AC or DC power source. The
unsurpassed flexibility means that one model can meet many application requirements.
Signal Conditioning flexibility and use made simple from ioSelect, powered by Seneca (Z104).
General Specifications
Input
Current
0-20 mA, 4-20 mA, active or passive
Excitation
20 Vdc (stabilized) @ 20 mA
Impedance 100 Ω/passive
Voltage
0-5, 1-5, 0-10 or 2-10 Vdc
Impedance 1 MΩ
Overload
100 mA continuous
Output
NPN open collector
30 Vdc @ 300 mA maximum
Reed Relay
30 Vdc, 100 mA maximum
LED Status
Presence of Power
Offscale Input
Power
19-40 Vdc or 19-28 Vac
Power
Consumption 2.5 W
Ordering Information:
877 3 GET IOS (877.343.8467)
IOS-UP-475
IOS-Z104
Performance Specifications
Isolation:
3 way isolation
1500 Vac input/output/power
Accuracy
< 0.2% of Full Scale
Linearity
0.05%
Thermal
Stability
0.02%/°C
Response Time < 150 ms
Humidity:
30-90% @ 40 °C (104 °F)
Operating
Temperature 0 to 50 °C (32 to 122 °F)
Storage
Temperature -40 to 80 °C (-40 to 176 °F)
Dimensions
17.5 x 100 x 112 mm (w x h x d)
(0.69 x 3.84 x 4.14 in)
Weight
150 g (5.3 oz)
DC to Frequency Isolating Signal Conditioner
DC to Frequency Isolating Signal Conditioner
www.ioselect.com
Rev: 2/23/2011
UniPak™ UP475 / Z104
DC to Frequency Isolating Signal Conditioner
Wiring Instructions
Input
Power
Current using Internal
Loop Power Supply
6
A
4
19 to 40 Vdc
Externally Powered
Current
6
2
Voltage
6
+
or
19 to 28 Vac
3
Not Polarity Sensitive
*Do not exceed upper
limits of supply voltage
V
A
+
1
1
Output
!
Terminal Connections
Reed Relay
+ NPN
9
7
-
The reed-relay output can only be
used with frequencies below 40
12 Hz. The reed-relay output is
switched on by setting DIP switch
10 1 of the RANGE switch to ON.
The transistor output is always on.
Configuration
1. Input Common for Voltage and 2-wire and Configuration
2. Power
3. Power
4. Current Input Source
1 2 3
4 5 6
5. Configuration (+)
6. Input (+)
7. Relay Output (See Diagram)
8. No Connection
9. Relay Output (See Diagram)
7 8 9
10 11 12
10. NPN Output Common(See Diagram)
11. No Connection
12. NPN Output (+) (See Diagram)
Set the output frequency: Requires a calibrated voltmeter.
The meter is connected to terminals 5 (+) and 1 (-) and set to
a 10 V scale.
10 × P × K
The desired output is calculated by the formula: Vout =
FS
Where P = pulses /hour,
K is the constant on the UP475 label &
FS is the full scale of the range selected in the RANGE SWITCH
table. Set the INPUT SWITCH to the “Configuration” switch
INPUT SWITCH
settings. Use the front mounted potentiometer to adjust
Input
1 2 3 4
output to the desired level.
0-20 mA
Once the output range is set the input is configured by
setting the INPUT SWITCH and then wiring to the designated
input terminals for the input used.
Example: P = 90 p/h (pulses per hour). The voltage should be
set to: (10 x 90 x 1.05) /137.33 = 6.881 V.
KEY:
RANGE SWITCH
5 6
Frequency (pph) 1 2 3 4 5 6
36 M - 8.4 M
4-20 mA
9 M - 2.1 M
0-5 V
2.25 M - 525 k
1-5 V
562.5 k - 131.25 k
0-10 V
140.625 k - 33 k
2-10 V
35.15625 k - 8.2 k
Configuration
8.78906 k - 2.1 k
Often the desired output is listed in Hz (pulses per second) or
rpm (revolutions per minute). Use the following to convert to
p/h (pph or pulses per hour). Pulse/rev will be dependent on
application.
pulse 60 sec 60 min
pulse
×
×
= Hz × 3600 =
sec
1 min 1hour
hour
rev pulse 60 min pulse
×
×
=
min
rev
1hour
hour
= ON
2.19727 k - 513
549.32 - 129
137.33 - 33
34.33 - 8
8.58 - 2
2.15 - 0.5
Installation
The UniPak™ UP475 is designed to be mounted on 35 mm DIN rail. Adequate ventilation may be needed to ensure
optimal operating conditions. Avoid mounting modules over devices that generate heat. If operating at the high end of
the temperature specifications (near 50 °C/ 125 °F) it may be necessary to separate the modules by at least 5 mm (0.2 in).
Other Conditions that may Contribute to High Operational Temperature:
· High power voltage (> 30 Vdc / > 26 Vac)
· Powering an input sensor and one output consistently at a high output level
Power supply upper limits must not be exceeded. Excessive power level will result in damage to the module.
EN50081-2
EN50082-2
EN61010-1
877 3 GET IOS (877.343.8467)
www.ioselect.com
Rev: 2/23/2011

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