User Guide

SMARTVFD HVAC2
13 31-00109EF—01
The table below shows the SmartVFD HVAC2 control connections with the terminal numbers.
Fig. 25. Control inputs and outputs – API Full.
Table 16. SmartVFD HVAC2 General purpose application default I / O configuration and connections for control board
P = Programmable function.
1–10 kΩ Terminal Signal Factory preset Description
1 +10 Vref Ref. voltage out Maximum load 10 mA
2 AI1 Analog signal in 1 Freq. reference
P)
0 - 10 V, Ri = 250 kΩ
3 GND I / O signal ground
6 24 Vout 24 V output for DI's ±20%, max. load 50 mA
7 DI_C Digital Input
Common
Digital Input Common for DI1- DI6.
8 DI1 Digital input 1 Start forward
P)
Positive,
Logic1: 18…30V,
Logic0: 0…5V;
Negative,
Logic1: 0…10V,
Logic0: 18…30V;
Ri = 10KΩ (floating)
9 DI2 Digital input 2 Start reverse
P)
10 DI3 Digital input 3 Fault reset
P)
A A RS485 signal A FB Communication Negative
B B RS485 signal B FB Communication Positive
4 AI2 Analog signal in 2 PID actual value
and Freq. reference
P)
Default:
0(4) - 20 mA, Ri ≤ 250 Ω
Other:
0 - + 10 V, Ri = 250 kΩ
Selectable through microswitch
5 GND I / O signal ground
13 DO- Digital Output
Common
Digital Output Common
14 DI4 Digital input 4 As DI1
15 DI5 Digital input 5 As DI1,
Selectable through microswitch
16 DI6 Digital input 6 As DI1
18 AO Analog Output Output frequency
P)
0(4) - 20 mA, RL ≤ 500Ω
0 - 10 V, RL ≥ 1 KΩ
Selectable through microswitch
20 DO Digital signal out Active = READY
P)
Open collector, max. load 35 V / 50 mA
22 RO1 NO
Relay out 1
Active = RUN
P)
Switching load:
250 Vac / 3 A, 24V DC 3A
23 RO1 CM
24 RO2 NC
Relay out 2
Active = FAULT
P)
Switching load:
250 Vac / 3 A, 24V DC 3A
25 RO2 CM
26 RO2 NO
mA