KB Electronics KBDA-42 - Manual (Page 46)

45
A2. UP/DOWN FREQUENCY COMMAND
The Multi-Function Input Terminals can be used for remote Up/Down Frequency control in lieu of the
Keypad or the Built-In Potentiometer. Connect the normally open switches or contacts to any two
respective Multi-Function Input Terminal (“1” – “7”). Connect the common of the switches or contacts to
Terminal “8” (common). When the “Up” switch or contact is closed, the drive output frequency will
increase. When the “Down” switch or contact is closed, the drive output frequency will decrease. See
Figure 27, on page 46.
Set Frequency Control (Function No. 2.00) to Up/Down Using MFITs (“0005”). Set the respective Multi-
Function Input Terminal (Function Nos. 7.00 – 7.06), which will be used for “Up”, to “0003”. Set the
respective Multi-Function Input Terminal (Function Nos. 7.00 – 7.06), which will be used for “Down”, to
“0004”. In Figure 27, on page 46, Multi-Function Input Terminals “4” and “5” have been arbitrarily chosen.
Also see Up/Down Frequency Control Mode (Function No. 7.14) to set the switch or contact mode for
“Free Running” (Function No. 7.14 set to “0000” (factory setting)) or “Incremental Change” (Function
No. 7.14 set to “0001”). In “Free Running” mode, the rate of change of the “UP” control is proportional
to the Accel Time (Function No. 3.03) and the rate of change of the “Down” control is proportional to
the Decel Time (Function No. 3.04). In “Incremental Change” mode, the rate of change of the “UP” or
“Down” control is set by Function No. 7.15 (range is 0.01 – 30.00 Hz (factory set to 1.00 Hz)).
A1. PRESET FREQUENCIES
The drive is factory programmed for 7 Preset Frequencies, which can be selected using remote switches
or contacts connected to the Multi-Function Input Terminals “1” – “7”, as shown in Figure 26. See Table
13, for the Multi-Function Input Terminals to select for the preset frequencies. The Preset Frequencies
can be changed from their factory settings by reprogramming Preset Frequencies 1 – 7 (Function Nos.
7.07 – 7.13). When the switch or contact is closed, the preset frequency is selected. In Figure 26, Multi-
Function Input Terminals “1”, “2”, and “3” have been arbitrarily chosen. As an example, Function Nos.
7.04, 7.05, and 7.06 can also be programmed to use Multi-Function Input Terminals “5”, “6”, and “7”.
FIGURE 26 – PRESET FREQUENCY SELECTION SWITCH OR CONTACT CONNECTIONS AND FUNCTION SETTINGS
TABLE 13 – PRESET FREQUENCY SELECTION
1
16
1
15
TB1
26 21
2
17
2 3
18
5 4
19
6
20 22
7 8
23
10 9
24
11
25
14
27
12
28
13
3
Function Settings
Function No. Code
7.00
Multi-Function
Input Terminal 1
0000
Preset Frequency
Operation
7.01
Multi-Function
Input Terminal 2
0001
Preset Frequency
Operation
7.02
Multi-Function
Input Terminal 3
0002
Preset Frequency
Operation
Multi-Function Input Terminals to Select Preset Frequency
Terminal
1
Terminal
2
Terminal
3 No. Function No.
Hz
(Factory Setting)
• 1 7.07 5.00
• 2 7.08 10.00
• • 3 7.09 20.00
• 4 7.10 25.00
• • 5 7.11 30.00
• • 6 7.12 35.00
• • • 7 7.13 40.00