Stenner Pumps S Serie Manual De Instalación Y Mantenimiento página 86

TROUBLESHOOTING – MOTOR
HAZARDOUS VOLTAGE: DISCONNECT power cord before removing motor cover for service.
Electrical service should be performed by trained personnel only.
PROBLEM
Display is blank or not readable
No response to input signal
Output is erratic
Output is higher or lower
than expected
Pump cycles ON/OFF
S Series FW 4.01.02 US and Canada 800.683.2378, International 904.641.1666 www.stenner.com
POSSIBLE CAUSE
No power cord connection point
Failed power supply
Pump requires re-initialization
Display is too dim
Pump is in alarm or STANDBY condition
Pump is not in the correct mode
No signal or improper signal level input
to the pump
Input signal is not wired correctly
Signal is fluctuating rapidly
Noise on the signal wire
Signal is fluctuating rapidly
Pump calibration data is incorrect
Input signal level is higher or lower
than anticipated
Failed fan
Pump is too hot
Red (+12VDC) wire on the signal cable
is not capped and insulated
(if not terminated)
Load too high or shortened on
4-20mA output
86
SOLUTION
Check voltage of receptacle/controller
output voltage
Return to factory for evaluation
Cycle power to the pump
Increase display brightness in the
CONFIGURATION menu
Clear and correct any alarm or indicated
conditions (leak detect, standby, etc.)
Ensure that pump has been programmed
for the correct input signal and that the
operating display shows the desired mode
of operation
If in signal mode, confirm signal level
input to the pump by looking for the icon
on the screen
Confirm that the input signal is connected
to the correct wires
Check stability of signal being input to
the pump
If shielded wire is connected to the pump
input signal cable, ensure it is propperly
grounded at the signal source
Check programming, ensure the values
entered are correct
Check that the value entered for
CALIBRATION in the CONFIGURATION
menu is correct
Check input signal level to the pump
Return to factory for evaluation
Check that maximum ambient
temperature is less than 104°F; Shade
pump if exposed to direct sunlight
Cap and insulate the Red wire to prevent
it from shorting
Maximum loop impedance is 300mA;
Ensure output is not shortened