NK TECHNOLOGIES AGV Series Instructions

Specifi cations
Power Supply 24 VAC/DC (19-24V)
120 VAC (90-130V)
Power Consumption 2.4 VA max. (24V power)
3 VA max. (120V Power)
Trip point Range 30, 50 & 100 mA, Switch Select
Voltage Range Up to 600 VAC (Monitored Circuit)
Frequency Range 12-398Hz (Monitored Circuit)
Relay Output SPDT 1A@120 VAC, 2A@30 VDC
Frequency of Monitored Circuit
<17 Hz
17-32 Hz
>32 Hz
Time Delay 0-10 seconds plus response time
Isolation Voltage 1240 VAC, tested to 5KV
Sensor Power Indication Green LED = Power untripped
Output Tripped Status Red LED = Output tripped
Dimensions 2.91"Hx3.86"Wx1.45"D
(73.9x98.0x36.8 mm)
Aperture 0.75" (19.1 mm) inside diameter
Case UL 94V-0 Flammability Rated
Environmental -4 to 122°F (-20 to 50°C)
Power Supply Notes
All low-current Ground-Fault Sensors are sensitive devices
that require reasonable care in system design to avoid false
trips caused by high electrical noise levels. Keep in mind
that the best way to reduce noise in a system is to suppress
it at its source.
1. Keep the sensor power isolated from noisy circuits.
2. Do not power the sensor with the same circuit that switches
contactors or other high current, inductive loads.
System Grounding
Good design practice and code require that all AC power
systems be grounded. AGV Series sensors are designed to
work on grounded AC power systems. They will not operate
properly on ungrounded systems.
Model Number Key
AGV 3 - SDT - 24U - LA - TR3
Response Time
<140 ms
<75 ms
<45 ms
Output Type
SDT - Single Pole, Double Throw
Setpoint Range
3 - Tri-Set, 30, 50, & 100 mA, Slide Switch
Select
AGV Series Ground Fault
Know Your Power Know Your Power
Other NK Technologies Products Include:
AC & DC Current Transducers
AC & DC Current Operated Switches
1 & 3Power Transducers
Current & Potential Transformers (CTs&PTs)
3511 Charter Park Drive, San Jose, CA 95136
Phone: 800-959-4014 or 408-871-7510
Fax: 408-871-7515
sales@nktechnologies.com, www.nktechnologies.com
Setpoint
TR3 - Tri-Set, 30/50/100 mA
Switch Select
Output
DEN - Normally De-energized
ENE - Normally Energized
LA - Latching
Power Supply
24U - 24 VAC/DC
120 - 120 VAC
(Form C SPDT Relay)
INSTRUCTIONS
AGV Series
Ground Fault Sensors
For VFD Driven Loads
Quick "How To" Guide
1
. Pass all current carrying conductors include neutral
return not ground return through sensor window.
2. Mount the sensor to a surface if needed.
3. Connect output & power wiring to unit.
A. Use 22-14 AWG copper wires rated for 75°C mini-
mum.
B. Make sure power and load matches those shown on
the senors' label.
C. Set the desired trip point using the slide switch to
choose 30, 50, or 100 mA setting.
4. Energize the monitored circuit. Add delay before
the output changes state as required by turning pot
clockwise, arrow pointing to the seconds added.
5. Test
A. Pressing the "TEST" button tests the sensor's
internal circuits. CAUTION: The output and any
connected loads will switch! The LED shows red
when a fault is detected or test button is pressed.
B. For latching output models (-LA), momentarily
shorting between the "reset" terminals will release
the latched output contact. Do not apply voltage to
the reset terminals.
490061007 Rev 1