WV168
AC Input Limit Alarm |
TECHNICAL SPECIFICATION (WV168)
|
| Inputs |
Voltage Input
Ranges: |
|
50mV, 150mV,
500mV, 5V, 20V, 50V, 150V, 250V |
|
Impedance: |
|
>100k Ohms |
|
Overvoltage: |
|
275VAC |
| Current Input Ranges: |
|
20mA, 100mA |
|
Impedance: |
|
10 Ohms,
typical |
|
Overcurrent: |
|
200mA, max |
|
Overvoltage: |
|
60V |
| Minimum Deadband |
|
|
| Range |
Deadband |
| 50mV |
0.2% (100uV) |
| 150mV |
0.2% (300uV) |
| 500mV |
0.2% (1mV) |
| 5V |
0.1% (5mV) |
| 20V |
0.1% (20mV) |
| 50V |
0.1% (50mV) |
| 150V |
0.1% (150mV) |
| 250V |
0.1% (250mV) |
| 20mA |
0.1% (20uA) |
| 100mA |
0.1% (100uA) |
|
| Response
Time |
|
|
|
| Dynamic
Deadband: |
|
Relay status will change when
proper setpoint/process condition exists for 100mSec. or greater. |
| Normal Mode (analog filtering): |
|
<250mSec |
| Setpoint |
|
|
|
| Effectivity: |
|
|
Setpoints
are adjustable (by pushbutton) over 100% of the selected input span |
| Repeatability (constant temperature): |
|
|
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>200mV/10mA: |
|
0.1% of full scale |
|
<200mV/10mA: |
|
0.2% of full
scale |
| Relay
Contacts |
|
2 SPDT (2 form C) Relays |
|
|
1 relay per
setpoint |
| Current rating
(resistive) |
|
120VAC: 5A; 240VAC: 2A; 28VDC:
5A |
| Material: |
|
|
Gold flash
over silver alloy |
| Electrical Life: |
|
|
10^5 operations |
| Reset Switch (WV168-2001 only) |
|
For
unlatching the relay once the process is no longer in the alarm state. |
| Local
Range Selection |
|
By DIP switch |
| Stability |
|
|
±100ppm of FS /°C |
| CMRR |
|
|
120dB @ DC, >90dB @ 60Hz,
or better |
| Isolation |
|
1800VDC |
| 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.,
(3.25W max both relays energized) |
| 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 Relative Humidity: |
|
15% to 95%RH
(non-condensing) at 45°C |
| Non-operating Relative Humidity: |
|
90%RH (non-condensing) at
60°C for 24 hrs |
| Agency Approvals |
|
CE, EN61326,
EN61010-1 |
| (EMC & Safety) |
|
UL508 and CSA C22.2 No. 1010-1
Combined mark (pending) |
|
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.
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.
Options
C620 Factory
calibration of input range, setpoints and output relays.
Configuring
Modules
Unless otherwise specified, the factory presets the Model
WV168 as follows:
| Input: |
mVAC |
| Range: |
0-500mV |
| Output: |
Dual, SPDT |
| Trip: |
A: HI, B: LO |
| Failsafe: |
No |
| Deadband: |
A, B: minimum |
|
|
- For other ranges, refer to the SWITCH SETTINGS table.
Reconfigure switches S1 and S2 for the desired input type and range.
- Set position 1 of S1 to ON if a WVC16 will be utilized
and remote calibration capability is desired.
- Set position 2 and 3 of S1 to ON for a Hi trip setpoint
or to OFF for a Low trip setpoint.
- 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.
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 properly-rated MOV across the
load in parallel with a series RC snubber. Use a 0.01 to 0.1µF pulse film
capacitor (foil polypropylene recommended) of sufficient voltage, and a
47ïçµ 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). |
|
|
WV16 Communications
Interface (Optional)
The WVC16 Communications Interface adds
functionality never before found in a signal conditioning system. The WVC16
interfaces with Ultra SlimPak II devices via an internal infrared
communications link (no programming required) and provides the ability to
connect as many as 32 modules to the intranet, allowing the user to view
process data on a near real time basis, perform data logging functions on
specified modules, calibrate the signal conditioners remotely, and view
diagnostic information.
The WVC16 contains a web page server and an e-mail
server. Browsers supported include Internet Explorer 5 or later and Netscape
Navigator 4.7 or later. The user has the ability to have setpoint trip
conditions generate an email message for up to 10 recipients. The module also
contains a countdown timer that can be used to notify when routine maintenance
is required, such as re-calibration. The internal temperature of the module can
also be monitored. All memory to support the signal conditioner’s
historical data, storage of the web pages and all e-mail messages is contained
in the WVC16.
The WVC16 downloads a JAVA applet to the client’s
computer. The applet provides access to the signal conditioner’s data,
which includes the following:
- Module configuration summary
- Module configuration editing
- Diagnostic/warning status
- Alarm setup & status
- E-mail setup, editing & address book
- Process variable viewing
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Calibration
The
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 (703-
669-1318).
Note that Custom Calibration (option C620) is
available from the factory (settings MUST be within the units specifications).
For a C620, specify the following:
- Input type.
- Setpoint A trip point and reset point.
- Setpoint B trip point and reset point.
- Failsafe (ON/OFF)
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