Wilkerson ER08 - Manual (Page 7)

40mm & 60mm Proportional Regulator 2R210
7
Problem Possible Reason Solution
Display will not light up No 24 volts power supply Check if the wiring is connected according to
the schematic wiring diagram
Unit will not, or not correctly respond to
given setpoint Wrong current applied ( I.e. Volt instead of
mA or mA instead of Volt Change setpoint current or re configure the
setpoint current through the software by
changing parameter 4
Check wiring if the setpoint signal lead is
connected to the right pin within the male M12
connector ( should be pin 2)
Setpoint signal is not stable enough Stabilize setpoint signal input
Display shows NoP. Unit detects that required output pressure
is higher than the supplied pressure Adjust the inlet pressure to a higher value,
preferably 0,5 bar higher than requested output
pressure
Give lower setpoint value which corresponds to
a output pressure lower than the inlet pressure
No inlet pressure at all Connect port 1 to the supply pressure
Unit behavior is not considered normal Faulty settings made in the parameters Reset the unit to factory settings by using the
green key function under parameter 0
Desired pressure can not be reached Setpoint value to low
Pre-set pressure limit has been changed
to a lower max. outlet pressure
Increase setpoint value
Change max. outlet pressure back to required
pressure by changing parameter 19
Supply pressure is to low Increase supply pressure
Secondary side stays pressurized Setpoint value is higher than 0,1 Volt
Pre-set pressure has been enabled to a
certain pressure
Lower your setpoint value, preferably to 0 Volts
Reset parameter 18 to 0
Display shows unrealistic value Display maybe configured in the wrong
value ( bar instead of psi) Check through parameter 14, if the display
value is set on either psi or bar, if necessary
change it to the required setting
Unit response time too slow or too quick Volume behind the unit is either too big or
too small Adjust the regulating speed of the unit through
parameter 20
Unit gives too much overshoot Relation between volume and response
me is out of balance Adjust response time to a higher value through
parameter 20, to achieve more accurate
behavior
Unit is adjusting/regulating constantly Air leakage in the system behind the unit
Constant changing volume behind the unit
“Deadband “area is set too small
Resolve leakage
Unit needs to regulate to keep required pres-
sure at the same level
Try to minimize the volume changes
Enlarge deadband setting through parameter
13 in the software ( parameter 20 has to be set
to 0 before changing parameter 13)
Can not enter software through touchpad Unit is currently working/processing Make sure that the unit is in steady state while
activating the software
Activating time is too short Hold the accept button for at least 3 seconds
Display indicates ‘OL’ Wiring not according to diagram (24 volt
connected on the setpoint connection pin) Rewire so that on the setpoint connection pin
will be either 0-10v or 4-20mA
Wrong setpoint value given in relation to
programmed setpoint value acceptance Change over setpoint value to either V or mA
or Reprogram the unit to the correct setpoint
value via parameter 4
Any other problem Please consult factory