Veris Industries H10F Install - Manual (Page 2)

Z204651-0F PAGE 2 ©2012 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] 02121
Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
TM
INSTALLATION GUIDE
H10F
OPERATING STATES
Mode Output Status LED Indication
LEARN (30 sec) Closed (≤ 1 Ω) Alternating Red/Green
NORMAL Closed (≤ 1 Ω) Blinking Green
ALARM Open (≥ 1 m Ω) Blinking Red
Status Output Logic Sense: Open = No primary current or primary current out of range; Closed =
Primary current within range
Note: Status contacts may close momentarily when unit is initially recovering from an extended
(typically longer than 10 seconds) power OFF state to an ALARM state.
ALARM RESET
5% Typical
+20%
+15%
POWER
ON
POWER LOSS
ØAAC ØAAC
-15%
-20%
LEARN
(MODE)
30 SEC ALARM
(MODE)
ALARM
(MODE)
NORMAL
(CURRENT
MONITOR
MODE)
NORMAL
(CURRENT
MONITOR MODE)
NOMINAL
LEARNED
CURRENT
1 SEC. DELAY 30 SEC. DELAY
CALIBRATION
For load currents less than sensor minimum rating:
Wrap the monitored conductor through the center window and around the sensor
body to produce multiple turns through the window. This increases the current
measured by the switch.
DANGER: 5A CTs can present hazardous voltages.
Install CTs in accordance with manufacturer's instructions.
Terminate the CT secondary before applying current.
H68xx-5A CT
To manually learn
normal load:
CAUTION
RISK OF EQUIPMENT DAMAGE
• Derate the product’s maximum current for the number of turns
through the sensing window using the following formula.
Rated Max. Amps ÷ Number of Turns = Max. monitored Amps
e.g. : 100A ÷ 4 Turns = 25 Amps max. in monitored conductor
• Failure to follow these instructions can result in overheating
and permanent equipment damage.
4x
0.5A
VERIS INDUSTRIES Portland, Orego
n 97223 1-800-354-8556
Hawkeye
®
240A
300A: 5A
4A
VERIS INDUSTRIES Portland, Oregon 972
23
1-800-354-8556
Hawkeye
®
OPERATION
The H10F is a over-current and under-current monitor intended for use with a PLC or
other system controller. The current switch learns the nominal amperage on the line,
then monitors for amperage changes greater than ±20% of the learned value. If the
amperage goes out of the normal range, the current switch changes output state,
raising an alarm in the system controller. This alarm state persists until the amperage
comes back to within ±15% of the learned value for 30 seconds to ensure that the
system has truly returned to normal operation. The status output is suitable for
connection to system controllers or other data acquisition equipment operating at up
to 1A and 30VDC. The H10F requires no external power supply to generate its output.
NOTES
For load currents greater than sensor maximum rating:
Use a 5 Amp (H68xx series) Current Transformer (CT) as shown. This technique can be
combined with wrapping (see below) to add range for a low current load on a high
current source.
TROUBLESHOOTING
Problem Solution
No Reading at Controller • Check sensor calibration (see above)
• Check for control voltage at sensor (<30V)
• Check for amperage in monitored conductor (> 3.5A)
• Assure that sensor core mating surfaces are clean and that
the core clamp is completely closed
Establish normal load conditions.
OK!
A
OK!
First Time Power Up: No calibration needed, unit will automatically learn normal
load when powered.
To reset automatic
learn mode (normal
load conditions):
>5 s
>30 s
STOP
LED starts blinking
alternating red & green
When only the GREEN LED blinks, the unit is measuring normal current.
WAIT READY!
GREEN RED
>5 s
LED starts blinking
alternating red & green
Turn off power while lights are still blinking!
GREEN RED
At next power-up, unit will automatically learn normal load.
>100A (sensor max.)
< 3.5A (sensor min.)
Program controller to account for the extra
turns. e.g., if four turns pass through the
sensor (as shown), then divide the normal
controller reading by 4.