Danfoss VLZ065, Инструкции по применению

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The frequency converter is pre-set for speed
open loop control. This means that the speed set-
point is given by a 0-10V, where 0V corresponds
to the minimum compressor speed and 10V is
maximum compressor speed. The unit controller must have full control of
the compressor operation and application
protections such as compressor envelope
control, oil return management and short cycling
protection.
Below is the Danfoss proposed system
configuration and wiring.
Unit Architecture
230V or
24V ~
Opcal oil
level sensor
Crankcase
heater
230V ac or
24V ac or 24V dc =
T1
T2
T3
PE
L1
L2
L3
PE
Fuses or
circuit
breaker
Digital
input
RS 485
Modbus
Analog
output
Start / Stop
Alarm
Reset (should set to "reset")
LP
DGT
Discharge
pressure
Sucon
pressure
Low pressure
switch
Discharge gas
thermostat
Unit controller
0 to 10V DC
speed signal
Drive Alarm Feedback
Digital
input
HP High pressure
switch Digital
input
Digital
input
Analog
input
Analog
input
Digital
input
12 + 24V CC (80mA max.)
18 Digital Input
19 Digital Input
27 Digital Input/Output
29 Digital Input/Output
20 COM Digital Input
L1
L2
L3
PE
CM 01
NO 02
NC 03
CM 04
NO 05
NC 06
U
V
W
PE
3 Phase
Power input
50/60Hz
Motor output
High Pressure
Switch
Relays
Relay 1
Relay 2
CDS 803
42 Analog Output 0/4-20mA
45 Analog Output 0/4-20mA
50 + 10V Out (25mA max.)
53 Analog Input 1
54 Analog Input 2
55 COM Analog IN/OUT
61 COM RS485
68 P RS485
69 N RS-485
WD-00007
NOTE 1: Only relevant parameters or the ones different from factory defaults are shown.
NOTE 2: Oil boost, short cycle protection to be programmed in the unit controller
NOTE 3: Use an output contactor (CDS803)
20
AB444226142054en-000101