Operating instructions

24
3 Phase
power
input
91 (L1)
92 (L2)
93 (L3)
PE
88 (-)
89 (+)
50 (+10 V OUT)
53 (A IN)
54 (A IN)
55 (COM A IN)
0/4-20 mA
12 (+24V OUT)
13 (+24V OUT)
18 (D IN)
20
(COM D IN)
Switch Mode
Power Supply
10Vdc
15mA 200mA
+- + -
(U) 96
(V) 97
(W) 98
(PE) 99
(COM A OUT) 39
(A OUT) 42
(P RS-485) 68
(N RS-485) 69
(COM RS-485) 61
0V
5V
S801
Analog Output
0/4-20 mA
RS-485
RS-485
Interface
DC-Bus
03
Motor
0-10Vdc
+10Vdc
0-10Vdc
0/4-20 mA
240Vac, 2A
24Vdc
02
01
05
04
06
240Vac, 2A
24V (NPN)
0V (PNP)
0V (PNP)
24V (NPN)
19 (D IN)
24V (NPN)
0V (PNP)
27
24V
0V
(D IN/OUT)
0V (PNP)
24V (NPN)
(D IN/OUT)
0V
24V
29
24V (NPN)
0V (PNP)
0V (PNP)
24V (NPN)
33 (D IN)
32 (D IN)
12
ON
S201
ON
21
S202
ON=0-20mA
OFF=0-10V
95
400Vac, 2A
P 5-00
21
ON
S801
ON=Terminated
OFF=Open
relay2
relay1
Brake
resistor
(R+) 82
(R-) 81
37 (D IN)
(NPN) = Sink
(PNP) = Source
*
Par. 6 - 50
Connection examples
The numbers represent the terminals on the drive
This diagram shows a typical installa-
tion of the VLT® HVAC Drive. Power is
connected to the terminals 91 (L1), 92
(L2) and 93 (L3) and the motor is
connected to 96 (U), 97 (V) and 98 (W).
Terminals 88 and 89 are used for load
sharing between drives.
Analog inputs can be connected to
the 53 (V or mA), and for 54 (V or mA)
terminals.
These inputs can be set up as either
reference, feedback or thermistor
inputs.
There are 6 digital inputs to be
connected to terminals 18, 19, 27, 29,
32, and 33. Two digital input/output
terminals (27 and 29) can be set up
as digital outputs to show an actual
status or warning. The terminal
42 analog output can show process
values such as 0 - I
max
.
On the 68 (P+) and 69 (N-) terminals’
RS 485 interface, the drive can be
controlled and monitored via serial
communication.
* Safe Stop optional