Honeywell DCP552 Mark II User Manual

Page 175

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10-4

ADV cannot be invoked with PROG and DISP keys

FAST mode cannot be invoked with FUNC and

keys

MANUAL mode cannot be invoked with A/M key

AUTO mode cannot be invoked with A/M key

Autotuning (AT) cannot be started with AT key

Cause

Measure

Set to READY mode.

(With variable parameter

PA08

and

PA93

setting = 1 or 2 )

Set RUN mode to execute RUN operation (RUN/HOLD key).

Set to except READY mode.

(With variable parameter

PA08

and

PA93

setting = 3 or 4)

Set READY mode to execute RESET operation (PROG +

RUN/HOLD keys).

Set to MANUAL mode.

Set AUTO mode to execute AUTO operation (A/M key).

PV overrange.

Connect PV input correctly to obtain normal input conditions.

AT is set to off

Set variable parameter

PA08

and

PA93

to something other

than 0.

Set to key lock.

Set variable parameter

PA01

between 0 to 2.

Cause

Measure

Set to key lock.

Set variable parameter

PA01

between 0 to 2.

Cause

Measure

On-off control is set in

P

setting = 0.0.

Set the

P

setting for a currently used PID group to something

other than 0.0 to switch from ON-OFF control to PID control.

On-off control is set with segment PID group

number = on-off.

Set the segment PID group number between 1 to 9 or to A to

switch to PID control.

Set to key lock.

Set variable parameter

PA01

between 0 to 2.

Cause

Measure

Set to program time unit as 0.1 sec.

Set 0 or 1 setup data

C62

setting.

Set to END mode.

Perform a reset operation (press the PROG, RUN and HOLD

keys). Invoke the READY mode and perform a RUN operation

(press the RUN/HOLD key) to go to the RUN mode.

Set to fixed command control mode.

Set fixed command control data

ConSt

setting to 0.

Set to key lock.

Set variable parameter

PA01

between 0 to 2.

Cause

Measure

Set to READY mode.

Perform a RUN operation (press the RUN/HOLD key) to go to

the RUN mode. (ADV operation can be performed in the

READY mode with external switches or through transmission.)

Set to END mode.

Perform a reset operation (press the PROG, RUN and HOLD

keys). Invoke the READY mode and perform a RUN operation

(press the RUN/HOLD key) to go to the RUN mode.

Set to fixed command control mode.

Set fixed command control data

ConSt

setting to 0.

Set to key lock.

Set variable parameter

PA01

between 0 to 2.

Chapter 10. TROUBLESHOOTING

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