N1500i FACS Manual
74
Part No. 729-110-053 V.1.03
© 2018 Nelson Stud Welding, Inc. All rights reserved.
These pairs carry a pulsed 15V signal with a frequency in
the 3000Hz range representing the primary voltage. The
signal is controlled by the switch board. If this frequency is
below 1000Hz. Once this error occurs, the control may not
update the frequency on the display. The reading must be
in the normal range for this adjustment to be made. If
calibrating, observe F18 on the user interface of both left
and right sides
’ readings to tune it in to the measured
voltage on J1 of the switch board. If this error occurs and
you suspect an adjustment is needed, turn the
potentiometer to half way of the full scale and tune from
there. You'll have to get past this error to tune the voltage
readings correctly, which will involve some power down/up
cycles.
3. Broken connection from FACS Input board to the switch
board in V-F circuit. Check 750-649-045 FACS Input board,
J24 pins 14,2 for one pair, pins 15,3 for the other.
4. If the input voltage measures to be correct and the switch
boards V-F signal cannot be calibrated, replace the switch
board.
5. If the V-F signal is in a range of (2314Hz and 4529Hz or
250V - 470V) and when first powered up, you still get this
error, replace the FACS Input board.
8.3.7 E007 Input Voltage Too Low
Fatal, meaning you have to power down to continue welding
>> Yes
Acknowledge, meaning the error will exist as long as the unit
is powered on. (Note, welding can continue while the error
exists)
>> No
Description:
When power is initially applied to the system, it goes through a series
of relay closures / opens and watches the primary voltage closely. If the
voltage is sensed to be too low (<225VDC on the capacitor banks” - J1
on each switch board of the N1500i, J1, J4 of the N800i), the unit will re-
main in this state. The system must be powered down and examined/
fixed prior to anything else. That is, no welding can be done in this state.
E007
