VSD2H Variable Speed Drives Data Sheet TA201104 Issue 3, 08-Oct-2013 3
Data Sheet
VSD2H
HArDwAre
unit
: The unit is housed in a slim, space saving, bookshelf style
enclosure that should be mounted vertically on a wall or on the
back panel of a cubicle. Enough space should be left round
the unit for cooling. Most units have 4 point mounting with two
keyhole slots.
System:
The drive consists of the main unit, the cover, and a
detachable keypad unit.
K ey pa d
Control
U/T1
V/T2
W/T3
M
L1
L2
L3
Power unit
....
control signals
Option
board
slot E
Option
board
slot D
Basic board A
Basic I/O board
Basic board B
Relay board
Main unit
: The main unit consists of the power unit and the
control unit.
The power unit provides connections for the input mains supply
(L1, L2, L3) and the output supply to the motor (U, V, W).
The control unit is based around a microprocessor. The
microprocessor controls the motor based on the information it
receives through measurements, parameter settings, control I/O
and from the control keypad. The control unit of the frequency
converter consists of the control board and up to 4 additional
boards connected to the slot connectors (identified by letters A,
B, D, E) of the control board.
When the frequency converter is delivered from the factory,
the control unit includes the standard complement of two basic
boards, the Basic I/O Board in slot A, and the Relay Board in
slot B.
Additional boards can added to slots D and E. An NXIP or NXNI
Trend network interface can only be fitted in slot D.
32 33
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 30 A B
21 22 23
24 25 26
Relay Board
Basic I/O Board
The basic boards’ terminals are shown above.
The
Basic i/o Board
(fitted as standard) has:
2 analogue input channels, separately switchable to
voltage (0(2) to 10V) or current (0(4) to 20 mA)
6 digital input channels (0 to 5 V =0, 15 to 30 V = 1)
1 analogue output channel, switchable to voltage (0 to
10V) or current (4 to 20 mA).
RS485 serial bus terminal pair (for BACnet MS/TP or
Modbus)
The defaults for the analogue inputs and output are indicated
in the diagram below; they may be changed using the DIP
switches (see below).
10 kohm
RS485 A (-)
RS485 B (+)
digital input
ground isolation
link
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
30
10 Vref
AI1+
AI1-
AI2+
AI2-
24Vout
GND
DI1
DI2
DI3
COM
24Vout
GND
DI4
DI5
DI6
COM
AO1+
AO1-
+24 Vin
Reference
(voltage)
Reference
(current)
Basic I/O board
A
B
(current)
Main unit
Detachable
Keypad
Control
terminals
Power
terminals
Cover
Cable
protection
plate
