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WV108-2000 (non-latching)
WV108-2001 (latching)
ULTRA SLIMPAK® II
WV108
DC Powered DC Input Limit Alarm
Provides Relay Contact Closures
at a Preset DC Input Level
Programmable HI or LO, Failsafe or Non-failsafe
Improved Accuracy
24VDC Transducer Excitation
Bussed Power with Plug-in Power Clips
Removable Terminals for Easy Service
Description
The Ultra SlimPak II is an exciting new line of isolating signal
conditioners from Action Instruments with greater accuracy and
better stability than virtually any other signal conditioners on the
market today.
The WV108 is a DC Voltage or Current Input Limit Alarm with dual
setpoints and two contact closure outputs. The input type and
alarm functions are field configurable, offering maximum flexibility. There are five input voltage ranges between ±20mV and
±200V, and two current input ranges, ±10mA and ±100mA. Alarm
setpoints are fully adjustable throughout the entire range.
The WV108-2000 contains two standard non-latching SPDT relays.
When power is removed, the relays revert to their non-powered
state. The WV108-2001 contains two latching relays. Whatever
position the relays are in when power is removed is where they will
remain when power is re-applied (a reset switch is provided to
reset the relays after the alarm is no longer true). Both models are
configurable as a single or dual setpoint alarm, with HI or LO trips.
The WV108-2000 supports failsafe or non-failsafe operation. In
failsafe operation the relay coil is energized when the process is
below the HI setpoint or above the LO setpoint (opposite for nonfailsafe). In the failsafe mode, a power failure results in an alarm
state output.
Touch Cal for Best Stability and Accuracy
RoHS Compliant
Adjustable Deadband
LED Trip and Input Indicators
Optional E-mail Notification of Alarms
Enhanced LED Diagnostics
Other than when executing the pushbutton calibration routine,
the LEDs blink under the following conditions:
RUN (Green):
On when unit is powered.
Flashes at 2Hz when input is under range.
Flashes at 8Hz when input is over range.
SETPOINT A (Red):
On when Setpoint A is tripped.
On when setting Setpoint A.
Flashes while calibrating the input level.
SETPOINT B (Red):
On when Setpoint B is tripped.
On when setting Setpoint B.
On while calibrating the input level.
Operation
Each of the alarm setpoints has a respective HI or LO deadband.
Red LEDs will illuminate indicating an alarm condition. The trip will
reset only when the process falls below the HI deadband or rises
above the LO deadband. (The WV108-2001 requires pressing the
reset switch in order to reset the relays after being tripped.) The
deadband can be left at the minimum level (the factory default)
or can be set to whatever level is desired.
Options
C620 Factory calibration of input range, setpoints and output relays.
Figure 1: Limit alarm operation and effect of deadband.
An Under Range condition exists when the signal is lower than the
operational low value minus 6.25% of the operational span. An
Over Range condition exists when the signal is higher than the
operational high value plus 6.25% of the operational span.
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Configuring Modules
Unless otherwise specified, the factory presets the Model WV108
as follows:
Input: Current
Range: ±100mA
Output: Dual, SPDT
Trip: A: HI, B: LO
Failsafe: No
Deadband: A, B: minimum
Remote Cal: No
1. For other ranges, refer to the SWITCH SETTINGS table (see
Figure 4). Reconfigure switches S1 and S2 for the desired input
type and range.
2. Set position 1 of S1 to ON if a WVC16 will be utilized and remote
calibration capability is desired.
Calibration
See the calibration flowchart in Figure 7. The complete calibration
procedure is contained in the Installation & Calibration Instructions document, which is available on our website
(www.actionio.com). You can also obtain it by telephoning Action
technical support (
Note that Custom Calibration (option C620) is available from the
factory (settings MUST be within the units specifications). For a
C620, specify the following:
a) Input Type (mA, mV, V).
b) Setpoint A trip point and reset point.
c) Setpoint B trip point and reset point.
d) Failsafe (ON/OFF).
3. Set position 2 and 3 of S1 to ON for a Hi trip setpoint or to OFF
for a Low trip setpoint.
4. Set position 4 of S1 to ON for failsafe operation (e.g. alarm trips
upon power failure) or OFF for non-failsafe operation (-2000 only).
It is also possible to remotely select the setpoints using an Ethernet
connection and the optional WVC16 WebView Communications
Interface module.
24VDC Transducer Excitation
The 24VDC source, which is isolated from line power, is used for
transducer excitation. Typical connections for voltage and current
are shown in Figure 5.
Relay Protection and EMI Suppression
When switching inductive loads, maximum relay life and transient
EMI suppression is achieved using external protection (see Figures
2 & 3). Place all protection devices directly across the load and
minimize all lead lengths. For AC inductive loads, place a properlyrated MOV across the load in parallel with a series RC snubber. Use
a 0.01 to 0.1mF pulse film capacitor (foil polypropylene recommended) of sufficient voltage, and a 47ohm, 1/2W carbon resistor.
For DC inductive loads, place a diode across the load (PRV > DC
supply, 1N4006 recommended) with (+) to cathode and (-) to
anode (the RC snubber is an optional enhancement).
Note that if a deadband entry is not specified, the default setting
of 0.25% will be used.
noitcnuF1S2S
123 45 6 7 12
tupnIegatloV
--------
:yeK a/n=-;desolCroNO=1=
Vm02-/+----
Vm002-/+----
V2-/+----
V02-/+----
V002-/+----
tupnItnerruC
Am01-/+----
Am001-/+----
elbanElaCetomeR
)iH(woL/iHA----- --
)iH(woL/iHB----- --
efasliaF--------
Figure 2: DC Inductive Loads
Figure 3: AC Inductive Loads
Figure 4: Switch Settings
ON = Closed
Remote Cal Enable
Remote Cal DisableOnOff
"A" Hi Trip
"A" Low TripOnOff
1
3
2
"B" Hi Trip
"B" Low TripOnOff
45
Non-FailsafeOnOff
6
Failsafe
7
Range: +/-100 ma
(see Table)
Default Switch Settings
ON = Closed
1
2
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31 ByaleR.C.N
12 )+(rewoPCD
22 )-(rewoPCD
32 noitcennoCoN
14 )+(tupnIgolanA
24 )-(tupnIgolanA
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15 AyaleR.O.N
25 AyaleR.moC
35 AyaleR.C.N
Figure 5: Typical Connections
Figure 6: Wiring Connections
Figure 7: Calibration Flowchart
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Specifications
r
Inputs:
Voltage Input Ranges: ±20mV, ±200mV, ± 2V, ±20V & ± 200V
Impedance: >100k ohms
Overvoltage: 200Vrms, max.
Current Input Range: ± 10mA & ±100mA
Impedance: 20 ohms, typical
Overcurrent: 170mA rms, max
Overvoltage: 60VDC
Minimum Deadband:
Range Deadband
±20mV 0.2% (80 microvolts)
±200mV 0.2% (800 microvolts)
±2V 0.1% (4mV)
±20V 0.1% (40mV)
±200V 0.025% (100mV)
±10mA 0.1% (20 microamps)
±100mA 0.025% (50 microamps)
Response Time:
Dynamic Deadband: Relay status will change when proper setpoint/
process condition exists for 100mSec or greater
Normal Mode: <250mSec (analog filtering)
Setpoint:
Effectivity: Setpoints are adjustable (by pushbutton) over 100% of
the selected input span
Repeatability:
>200mV/10mA: 0.1% of full scale (constant temperature)
<200mV/10mA: 0.2% of full scale
Relay Contacts:
2 SPDT (2 form C) Relays
1 relay per setpoint
Current rating (general use)
120VAC: 5A; 240VAC: 2A; 28VDC: 5A
Material: Gold flash over silver alloy
Electrical Life: 105 operations
Reset Switch: For unlatching the relay once the process is no longer in
the alarm state (WV108-2001 only).
Local Range Selection: By DIP switch
Stability: ±100ppm of FS/°C
Common Mode Rejection: 120dB @ DC, >90dB @ 60Hz, or better
Isolation: 1800VDC or peak AC between contacts, input & power
ESD Susceptibility: : Capable of meeting IEC 801-2 level 3 (8kV)
Humidity: Operating: 15 to 95% RH non-condensing @45°
C
Soak: 90% RH non-condensing for 24hrs @60°C
Temperature: Operating: 0 to 60
°C
Storage: -25 to +85°C
Power: 9 to 30VDC; 1.2W typ., (2.2W max. with both relays energized)
Excitation Voltage: 24VDC @ 20mA
Host Module Interface: IR link
Size: DIN rail case – refer to Dimensions drawing
Environmental:
Operating Temperature: 0°C to +60°C (32 to 140°F)
Storage Temperature: -25°C to +85 °C (-13 to 185°F)
Operating Humidity (non-condensing): 15% to 95%RH @45
°C
Storage Humidity (non-condensing): 90%RH @ 60°C for 24 hrs
Agency Approvals EMC & Safety:
UL recognized per standard UL508
(File No.E99775)
CE Conformance per EMC directive 2004/108/EC and Low Voltage
directive 2006/95/EC (Input < 75VDC, only).
RoHS Compliant
Ordering Information
Specify:
1. Model: WV108-2000 (non-latching) or
WV108-2001 (latching)
2. Optional Custom Factory Calibration (specify
C620, see required
settings under "Calibration, page 2).
3. Accessories.
Accessories
All WV Series modules will mount on standard TS35 (model MD03) DIN
rail. In addition, the following accessories are available:
WVC16 Communications Interface
MD03 TS35 x 7.5 DIN Rail (2 meters)
WV905 24VDC Power Supply (0.5 Amp)
H910 24VDC Power Supply (1 Amp)
H915 24VDC Power Supply (2.3 Amp)
MB03 End Bracket for MD03
C650 Utility software for WVC16
Printed on recycled pape
Note that detailed installation instructions are available on our website.
Dimensions
Dimensions are in millimeters (inches)
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