Control Terminal Programming Examples - Danfoss VLT FC 103 Operating Instructions Manual

Programming
Illustration 5.5 Programming Example Step 5
6. 6-14 Terminal 53 Low Ref./Feedb. Value. Set
minimum speed reference on Terminal 53 at 6Hz.
(This tells the frequency converter that the
minimum voltage received on Terminal 53 (0 V)
5 5
equals 6 Hz output).
Illustration 5.6 Programming Example Step 6
7. 6-15 Terminal 53 High Ref./Feedb. Value. Set
maximum speed reference on Terminal 53 at 60
Hz. (This tells the frequency converter that the
maximum voltage received on Terminal 53 (10 V)
equals 60 Hz output).
Illustration 5.7 Programming Example Step 7
With an external device providing a 0-10 V control signal
connected to frequency converter terminal 53, the system
is now ready for operation. Note that the scroll bar on the
right in the last illustration of the display is at the bottom,
indicating the procedure is complete.
Illustration 5.8 shows the wiring connections used to
enable this set up.
42
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VLT Refrigeration Drive FC 103 1.1-90 kW Operating Instructions
14.7% 0.00A
Analog Reference
6-11 Terminal 53 High
Voltage
10.00 V
14.7 % 0.00 A
Analog Reference
6 - 14 Terminal 53 Low
Ref./Feedb. Value
000020.000
14.7 % 0.00 A
Analog Reference
6 - 15 Terminal 53 High
Ref./Feedb. Value
50.000
MG16E202 - VLT® is a registered Danfoss trademark
1(1)
Q3-21
6-1*
U - I
A53
Illustration 5.8 Wiring Example for External Device Providing
0-10 V Control Signal (Frequency Converter Left, External Device
Right)
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Q3-21
5.3 Control Terminal Programming
Examples
Control terminals can be programmed.
•
Each terminal has specified functions it is capable
of performing
•
Parameters associated with the terminal enable
the function
See Table 2.5 for control terminal parameter number and
default setting. (Default setting can change based on the
selection in 0-03 Regional Settings.)
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The following example shows accessing Terminal 18 to see
Q3-21
the default setting.
1. Press [Main Menu] twice, scroll to parameter
group 5-** Digital In/Out and press [OK].
Illustration 5.9 6-15 Terminal 53 High Ref./Feedb. Value
53
+
0-10V
55
14.6% 0.00A
Main Menu
2-** Brakes
3-** Reference / Ramps
4-** Limits / Warnings
5-** Digital In/Out
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