Honeywell UDC 3300 사용자 설명서

164

UDC 3300 Controller Product Manual

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You can configure a single setpoint ramp to occur between the current
local setpoint and a final local setpoint over a time interval of from 1 to
255 minutes. You can RUN or HOLD the ramp at any time.

 The UDC 3300 has PV Hot Start functionality as standard

feature. This means that at power-up Local Setpoint #1 is set to the current
PV value and the Ramp, Rate, or Program then starts from this value.

Table 5-14 lists the procedure for configuring the Setpoint Ramp
parameters. The procedure for SP Program is in Section 6 – Setpoint
Programming Option.

Select
SP RAMP
Set Up Group

until you see:

SP RAMP

Lower Display

SET UP

Upper Display

Select the
Setpoint Ramp
function

until you see:

SP RAMP

Lower Display

Upper Display

DISABL

—Disables SP Ramp

 

ENABLE

—Enables SP Ramp for Loop 1

 

ENABL2

—Enables SP Ramp for Loop 2

 

ENAB12

—Enables Sp Ramp for  

Loops 1 and 2

Enable Setpoint
Ramp

to enable the setpoint ramp function. Choose
the loop(s) on which you want the ramp to
operate.

 You cannot change the

current local setpoint if the setpoint ramp
function is enabled. Make sure SP RATE is
disabled.

Set the Ramp
Time

until you see:

Lower Display

Upper Display

TIME MIN

The ramp time 
in minutes

 or

to change the upper display value to the
number of minutes in which you want the
final setpoint to be reached.

Setting Range = 1 to 255 minutes

 Entering “0” will imply an

immediate step change to the final SP.