Operating instructions

ManualsBrandsCOMPRO ManualsComputer equipmentX100 - START UP GUIDE

6-50 Terminal 42 Output

Option: Function:

[139] Bus ctrl. 0 - 100%, (0-20 mA)

[140] Bus ctrl. 4-20 mA 0 - 100%

[141] Bus ctrl t.o. 0 - 100%, (0-20 mA)

[142] Bus ctrl t.o.

4-20mA

0 - 100%

[143] Ext. CL 1 4-20mA 0 - 100%

[144] Ext. CL 2 4-20mA 0 - 100%

[145] Ext. CL 3 4-20mA 0 - 100%

NOTE

Values for setting the Minimum Reference is found in

open loop par. 3-02 Minimum Reference and for closed

loop par. 20-13 Minimum Reference/Feedb. - values for

maximum reference for open loop is found in

par. 3-03 Maximum Reference and for closed loop

par. 20-14 Maximum Reference/Feedb..

6-51 Terminal 42 Output Min Scale

Range: Function:

0.00 %

[0.00 -

200.00 %]

Scale for the minimum output (0 or 4 mA)

of the analogue signal at terminal 42.

Set the value to be the percentage of the

full range of the variable selected in

par. 6-50 Terminal 42 Output.

6-52 Terminal 42 Output Max Scale

Range: Function:

100.00

[0.00 -

200.00

Scale for the maximum output (20 mA) of the

analog signal at terminal 42.

Set the value to be the percentage of the full

range of the variable selected in

par. 6-50 Terminal 42 Output.

It is possible to get a value lower than 20 mA at

full scale by programming values >100% by

using a formula as follows:

desired

maximum

current

× 100 %

. 10

× 100 % = 200 %

EXAMPLE 1:

Variable value= OUTPUT FREQUENCY, range = 0-100 Hz

Range needed for output = 0-50 Hz

Output signal 0 or 4 mA is needed at 0 Hz (0% of range) - set

par. 6-51 Terminal 42 Output Min Scale to 0%

Output signal 20 mA is needed at 50 Hz (50% of range) - set

par. 6-52 Terminal 42 Output Max Scale to 50%

EXAMPLE 2:

Variable= FEEDBACK, range= -200% to +200%

Range needed for output= 0-100%

Output signal 0 or 4 mA is needed at 0% (50% of range) - set

par. 6-51 Terminal 42 Output Min Scale to 50%

Output signal 20 mA is needed at 100% (75% of range) - set

par. 6-52 Terminal 42 Output Max Scale to 75%

Parameter Description

VLT

HVAC Drive Programming Guide

MG.11.CA.02 - VLT

is a registered Danfoss trademark 73