Watlow EZ-ZONE RM-Scanner-Modul User Manual
Page 130
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Watlow EZ-ZONE
®
RMS Module
•
127
•
Appendix
Indication
Description
Possible Cause(s)
Corrective Action
Device Error
[`100]
[rEtn]
Controller displays internal
malfunction message at
power up.
• Controller defective
• Sensor input over driven
• Replace or repair controller
• Check sensors for ground loops, re-
verse wiring or out of range values.
Heater Error
[`h;Er]
Heater Error
• Current through load is above current
trip set point
• Check that the load current is proper.
Correct cause of overcurrent and/or en-
sure current trip set point is correct.
• Current through load is below current
trip set point
• Check that the load current is proper.
Correct cause of undercurrent and/or
ensure current trip set point is correct.
Current Error
[`C;Er]
Load current incorrect.
• Shorted solid-state or mechanical
relay
• Replace relay
• Open solid-state or mechanical relay • Replace relay
• Current transformer load wire associ-
ated to wrong output
• Route load wire through current
transformer from correct output, and
go to the [`C;Si] Source Output In-
stance parameter (Setup Page, Current
Menu) to select the output that is driv-
ing the load.
• Defective current transformer or con-
troller
• Replace or repair sensor or controller
• Noisy electrical lines
• Route wires appropriately, check for
loose connections, add line filters
Remote User Inter-
face (RUI) menus
inaccessible
Unable to access [`SEt],
[OPEr]
, [FCty] or [ProF]
menus or particular prompts
in Home Page
• Security set to incorrect level
• Check [`loC] settings in Factory Page
• Enter appropriate password in [UloC]
setting in Factory Page
• Digital input set to lockout keypad
• Change state of digital input
• Custom parameters incorrect
• Change custom parameters in Factory
Page
RUI value to low
[ual;l]
Value to low to be displayed
in 4 digit LED display
<-1999
• Incorrect setup
• Check scaling of source data
RUI value to high
[ual;h]
Value to high to be displayed
in 4 digit LED display
>9999
• Incorrect setup
• Check scaling of source data