Sonic Alert DCP301 user manual Troubleshooting

Chapter 9. TROUBLESHOOTING

■Auto-tuning (AT) is not canceled by pressing AT in the basic display state

Cause	Remedy
Key lock is enabled.	Set variable parameter L O C setting to 0 to 2.

■Setting group other than “P A R A” is not displayed by pressing PARA by selecting the setting group in parameter set state

Cause	Remedy
Key lock is enabled.	Set variable parameter L O C setting to 0, 1 or 3.

■Setting group other than “S E T” is not displayed by pressing PARA by selecting the setting group in parameter set state

Cause	Remedy
Key lock is enabled.	Set variable parameter L O C setting to 0 or 3.

■The controller does not enter the setting entry state by pressing ENT in the param- eter setup state

Cause	Remedy
“– – – –” is displayed on the lower display.	This cannot be displayed nor set. This item sometimes
	can be displayed or set by changing the setting of
	related items.
Unchangeable data is displayed on the lower	This is a display-only item.
display.

■The controller does not change to setup group selection state and setting entry state continues by pressing PARA in parameter setting entry state

Cause	Remedy
The controller displays items by PARA assign-	Press DISP to return the controller to the basic display
ment.	state, and press FUNC + PARA .

■The controller does not change to program setup state by pressing FUNC + PROG in the basic display state

Cause	Remedy
The controller is in the constant-value opera-	Set constant-value operation data M .O D E setting to 0.
tion mode.
Key lock is enabled.	Set variable parameter L O C setting to 0, 1 or 3.

■The controller does not change to the setting entry state by pressing ENT in the basic display state

Cause	Remedy
The program setup cannot be changed.	Set program parameter P R T C setting to 0.

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