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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