Kistler-Morse KM SVS2000 - Manual (Page 81)

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www.kistlermorse.com
97-1129-01 Rev. D
9. ADC
Overrange - Sensor input is causing counts to go to 0. yes 1. Check wiring of sensors to junction box and junction
box to SVS2000. Correct loose, damaged (shorted), or
incorrect wiring.
2. One or more sensors may be damaged. Follow
troubleshooting procedures detailed in sensor manual
to locate damaged sensor(s). Replace if required.
3. Check power supply by measuring across +Ex and
-ex on Power Supply PCB.
• If SvS2000 is wired to km half-bridge sensors with no
IS Barriers, verify voltage is approximately 12 v.
• If SvS2000 is wired to foil-gage sensors, verify voltage
meets sensor manufacturer’s requirements. If voltage
is incorrect, Power Supply PCB may be damaged —
contact KM.
note: If system includes IS Barriers, check power
supply by measuring across+Sense and -Sense.
10. nVRAM
Failed #1 non-volatile RAM on Microprocessor/Display
PCB failed ‘wake-up’ test at power-up of
SVS2000. nA nvrAm may be damaged — contact k-m.
11. nVRAM
Failed #2 non-volatile RAM on Microprocessor/Display
PCB failed ‘read/write’ test at power-up of
SVS2000. nA nvrAm may be damaged — contact km.
12. Com Error #1 Communication with setpoint controller or
PLC PCB in SvS2000 has failed. yes for
current
output. nA
for setpoints
— setpoints
not
operational
because
com-
munication
has failed. Contact km after identifying the damaged PCB as
described below:
1. Disconnect ribbon cable between PLC PCB module
and Power Supply PCB. If error message disappears,
PLC PCB module may be damaged.
2. Setpoint controller chip on Power Supply PCB may
be damaged.
13. Com Error #2 Communication with PLC PCB module in
SVS2000 has failed. no 1. Check ribbon cable connection between PLC PCB
module and Power Supply PCB. Correct a loose or
incorrect connection.
2. PLC PCB module may be damaged — contact km.
14. Voltage Error
#1 AC input voltage is too low. yes 1. verify that AC input switch on Power Supply PCB is
set in correct position.
2. Check AC input voltage (115/230 VAC) and verify it is
within specifications.
15. Voltage Error
#2 A PCB is damaged. yes Contact km after identifying damaged PCB as
described below:
1. Disconnect ribbon cable between the Power Supply
PCB and optional PCBs. If there is no error message,
an optional PCB may be damaged. If there are multiple
optional PCBs in SvS2000:
A. Disconnect ribbon cables between optional PCBs.
B. reconnect ribbon cable between Power Supply PCB
and one optional PCB. If there is an error message, this
is damaged optional PCB.
C. repeat Step B for other optional PCB until damaged
PCB is identified. Troubleshooting. error messages F-4
2. Disconnect ribbon cable between Power Supply PCB
and optional PCBs. Disconnect ribbon cable between
microprocessor/Display PCB and Power Supply PCB.
Check voltage from bottom pin of J2 on Power Supply
PCB:
• If voltage is less than 11.5 v or greater than 12.5 v,
Power Supply PCB may be damaged.
• If voltage is between 11.5 v and 12.5 v,
microprocessor/Display PCB may be damaged.