2.8 Control Terminal Functions
The following describes the functions of the control terminals. Many of these terminals have multiple functions determined
by parameter settings. Some options provide more terminals.
Terminal No.
Function
01, 02, 03 and 04, 05, 06
Two Form C output relays. Maximum 240 V AC, 2 A. minimum 24 V DC, 10 mA, or 24 V AC, 100 mA. Can
be used for indicating status and warnings. Physically located on the power card.
12, 13
24 V DC power supply to digital inputs and external transducers. The maximum output current is 200 mA.
18, 19, 27, 29, 32, 33
Digital inputs for controlling the adjustable frequency drive. R = 2 kohm. Less than 5 V = logic 0 (open).
Greater than 10 V = logic 1 (closed). Terminals 27 and 29 are programmable as digital/pulse outputs.
20
Common for digital inputs.
37
0–24 V DC input for safety stop (some units).
39
Common for analog and digital outputs.
42
Analog and digital outputs for indicating values such as frequency, reference, current, and torque. The
analog signal is 0/4 to 20 mA at a maximum of 500
Ω
. The digital signal is 24 V DC at a minimum of 500
Ω
.
50
10 V DC, 15 mA maximum analog supply voltage for potentiometer or thermistor.
53, 54
Selectable for 0–10 V DC voltage input, R = 10 kΩ, or analog signals 0/4 to 20 mA at a maximum of 200
Ω
. Used for reference or feedback signals. A thermistor can be connected here.
55
Common for terminals 53 and 54.
61
RS-485 common.
68, 69
RS-485 interface and serial communication.
Table 2.6 Control Terminals and Functions
Terminal
18
19
27
29
32
33
37
53
54
42
1–3
4–6
Parameter
5–10
5–11
5–12
5–13
5–14
5–15
5–19
6–1*
6–2*
6–5*
5–4*
5–4*
Table 2.7 Control Terminals and Associated Parameter
Control terminals must be programmed. Each terminal has specific functions it performs and a numbered parameter
associated with it. The setting selected in the parameter enables the function of the terminal. See the Instruction Manual for
details.
Operator Interface and Adju...
Service Manual
MG94A222
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Summary of Contents for VLT FC 103
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