SSD 605C Product Manual - page 119

Programming Your Application 

6-53

605C Frequency Inverter

REFERENCE

This function block holds all the parameters

concerning the generation of the setpoint

reference.

The generation of reference setpoint is

described in Chapter 4: “Operating the

Inverter” - Control Philosophy.

MMI Menu Map

1 SETUP PARAMETERS

2 FUNCTION BLOCKS

3 SEQ & REF

4 REFERENCE

REMOTE SETPOINT

SPEED TRIM

MAX SPEED CLAMP

MIN SPEED CLAMP

TRIM IN LOCAL

REMOTE REVERSE

SPEED DEMAND

SPEED SETPOINT

REVERSE

LOCAL SETPOINT

LOCAL REVERSE

COMMS SETPOINT

REFERENCE

SPEED DEMAND [255] – 0.00 %

SPEED SETPOINT [254] – 0.00 %

REVERSE [256] – FALSE

LOCAL SETPOINT [247] – 0.00 %

LOCAL REVERSE [250] – FALSE

COMMS SETPOINT [269] – 0.00 %

0.00 % – [245] REMOTE SETPOINT –

0.00 % – [248] SPEED TRIM

–

100.00 % – [252] MAX SPEED CLAMP –

-100.00 % – [253] MIN SPEED CLAMP

–

FALSE – [243] TRIM IN LOCAL

–

FALSE – [249] REMOTE REVERSE

–

Parameter Descriptions

REMOTE SETPOINT

Range: -300.00 to 300.00 %

This is the target reference that the Inverter will ramp to in remote reference mode (not

including trim), direction is taken from REMOTE REVERSE and the sign of REMOTE

SETPOINT.

SPEED TRIM

Range: -300.00 to 300.00 %

The trim is added to the ramp output in remote mode (or if TRIM IN LOCAL is TRUE) to form

SPEED DEMAND . The trim is typically connected to the output of a PID in a closed loop

system.

MAX SPEED CLAMP

Range: 0.00 to 100.00 %

Maximum value for SPEED DEMAND.

MIN SPEED CLAMP

Range: -100.00 to 0.00 %

Minimum value for SPEED DEMAND.

TRIM IN LOCAL

Range: FALSE / TRUE

When TRUE, SPEED TRIM is always added to the ramp output. When FALSE, SPEED TRIM

is added only to Remote mode.

REMOTE REVERSE

Range: FALSE / TRUE

Demanded direction when in Remote Reference mode. This is usually connected directly to the

Sequencing Logic.

SPEED DEMAND

Range: xxx.xh % (h)

Indicates actual speed demand. This is the input to the frequency controller.

SPEED SETPOINT

Range: xxx.xh % (h)

Indicates target speed. This will be equal to either LOCAL SETPOINT, REMOTE SETPOINT,

JOG SETPOINT or COMMS SETPOINT. (Refer to the JOG function block for the JOG

SETPOINT parameter).

REVERSE

Range: FALSE / TRUE

Indicates demanded direction. This may not be the actual direction as no account of setpoint sign

is taken.

LOCAL SETPOINT

Range: 0.00 to 100.00 %

Indicates the Operator Station setpoint. It is always a positive quantity; saved on power down.

Direction is taken from LOCAL REVERSE.