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How to Program on the Graphical Local 
Control Panel
The following instructions are valid for the gra-
phical LCP (LCP 102):
The control panel is divided into four functional 
groups:
 1. Graphical display with Status lines.
 2. Menu keys and indicator lights - changing 
parameters and switching between display func-
tions.
 3. Navigation keys and indicator lights (LEDs).
 4. Operation keys and indicator lights (LEDs). All 
data is displayed in a graphical LCP display, which  
can show up to five items of operating data while 
displaying [Status].

Display lines
 a. Status line:Status messages displaying icons 
and graphic.
 b. Line 1-2: Operator data lines displaying data 
defined or chosen by the user. By pressing the 
[Status] key, up to one extra line can be added. 
 c. Status line: Status messages displaying text.
Display Contrast Adjustment
Press [status] and [ 

 ] for darker display

Press [status] and [ 

 ] for brighter display

1

2

3

4

b

a

c

130BA018.12

Auto

 on

Reset

Hand

 on

Off

Status

Quick

Menu

Main

Menu

Alarm

Log

Ba

ck

Cancel

Info

OK

Status

1(0)

1234rpm

10,4A

43,5Hz

Run OK

83,5

Hz

On

Alarm

Warn.

Indicator lights (LEDs)
If certain threshold values are exceeded, the 
alarm and/or  warning LED lights up. A status and 
alarm text appear on the control panel.
The on LED is activated when the frequency 
converter receives mains voltage.
. Green LED/On: Control section is working.
. Yellow LED/Warn.: Indicates a warning.
. Flashing Red LED/Alarm: Indicates an alarm.

LCP keys
The control keys are divided into functions. The 
keys below the display and indicator lamps are 
used for parameter Set-up, including choice of 
display indication during normal operation.
[Status] indicates the status of the frequency 
converter and/or the motor compressor. You can 
choose
between 3 different readouts by pressing the 
[Status] key: 5 line readouts, 4 line readouts or 
Smart Logic Control by pushing twice the [status] 
key.
Use [Status] for selecting the mode of display or 
for changing back to Display mode from either 
the Quick Menu mode, the Main Menu mode or 
Alarm mode. Also use the [Status] key to toggle 
single or double read-out mode.
[Quick Menu] allows quick access to different 
Quick Menus such as:
 01 -  My Personal Menu
 02 - Quick Set-up
 03 – PID Process Loop
 04 - Changes Made
 05 - Loggings

Use [Quick Menu] for programming the parame-
ters belonging to the Quick Menu. It is possible to 
switch directly between Quick Menu mode and 
Main Menu mode.

Open loop control method
Controls using an external controller with 
0-10V signal
 
No need to change any parameter, this is the fac-
tory setting. 

Change switch 53 from U to I. 
No need to change any other parameter, this is 
factory setting.

Quick setup
The following lines describe the basic procedure 
to run the CD302.
1) Connect the power supply to the terminals (L1, 
L2 and L3) of the CD302 as shown on page 7 of 
this manual. 
2) Connect motor cable between the Drive (U, V & 
W) and Compressor (Clockwise on terminal), see 
picture of page 4.

(The connectors utilised in this first 2 steps are 
provided in the accessory bag which accompa-
nies the CD302)
3) Press “Quick menu” and go to quick setup. En-
sure that the correct compressor model is selec-
ted in parameter 1-13.
4) Make connections between the terminals 12 
and 18 (start signal), connections between termi-
nal 12 and 27 (inverse coast signal) and terminals 
12 and 37* (safe stop inverse signal). See pictures 
on page 9.
* (Please read also on pages 11 and 14 the chap-
ters about Safe Stop)

 When the above connections are made the 

compressor will start automatically.

 If an error that causes the Drive to trip is 

detected, it will automatically try to restart the 
compressor after 30 seconds (unless the error is 
severe and causes a trip lock). See also parame-
ters 14-20 and 14-21.

Open Loop with external reference
 5) Apply analogue speed reference signal (0-10V) 
on terminal 53 using the terminal 55 as common. 
The wiring diagram is on page 10 of this manual.
 6) Check over if the switch A53 is flicked to U 
(voltage) instead of I (current). The switch A53 is 
located on the drive and can be seen when the 
LCP is removed.
 7) Ready to Run: If the Drive is supplied with dis-
play: Use “Hand on” to set a local speed reference 
in the display (good for testing purposes). Use 
Auto on” for running in operation and with an 
external reference.

8) Done.
PID closed loop with 4-20 mA pressure trans-
mitter:

9) Connect pressure transmitter to analogue 
input on terminal 54 according to the schema on 
page 10.
10) Make sure that the switch for analogue input 
54 is set to “I” for current input.
11) Press “Quick Menu” button and go to “PID 
Closed Loop” menu. Now change parameters to:
• 1-00: Select: “Process”
• 3-01: Select: “Bar”
• 3-02 + 3-03: Enter the lower and upper limits of 

the set-point range [bar].

• 3-15: Set to “no function” for fixed set-point.
• 6-22 + 6-23: The values of these parameters 

should match the output of the pressure trans-
mitter (4-20 mA for example is the factory set-
ting).

• 6-24 + 6-25: Set range of pressure transmitter 

(factory setting -1/+12 bar).

• Go back to 3-13: Select “Local” to run with a fixed 

set-point adjustable via keypad. Select “Remote” 

This is how the screen will 
look like after configuring 
the drive for Speed Open 
loop application, Hand 
On
 mode

This is how the screen will 
look like after configuring 
the drive for Speed Open 
loop application, Auto On 
mode

Instructions

14 | AN000086420674en-000201

© Danfoss | DCS (CC) | 2019.04

Summary of Contents for Compressor Drive CD302

Page 1: ...t has been disconnected from mains Also make sure that other voltage inputs have been disconnected such as load sharing linkage of DC intermediate circuit Using CD 302 Com pressor Drives wait at least...

Page 2: ...and switch S202 Voltage mode Switch S201 switch S202 OFF U Voltage level 10 to 10 V scaleable Input resistance Ri approx 10 k Max voltage 20 V Current mode Switch S201 switch S202 ON I Current level...

Page 3: ...C dera ting of the frequency converter will become rele vant The service life of the frequency converter is reduced if derating for ambient temperature is not taken into account Mechanical dimensions...

Page 4: ...rth connection terminal 99 on decoupling plate with screws from the accessory bag Insert terminals 96 U 97 V 98 W and motor compressor cable to terminals labelled MOTOR Fasten screened cable to decoup...

Page 5: ...ent anti overload and lock rotor motor compressor protection see description in the application manual The frequency converter is protected against short circuits on compressor terminals U V W If a ma...

Page 6: ...mounted to the terminal To remove the cable from the terminal 1 Insert a screw driver in the square hole 2 Pull out the cable Basic Wiring Example 1 Mount terminals from the accessory bag to the fron...

Page 7: ...0BA025 17 91 L1 92 L2 93 L3 PE 88 89 50 10V OUT 53 A IN 54 A IN 55 COM A IN 0 4 20 mA 12 24V OUT 13 24V OUT 37 D IN 18 D IN 20 COM D IN 10Vdc 15mA 130 200mA U 96 V 97 W 98 PE 99 COM A OUT 39 A OUT 42...

Page 8: ...interrupt device If the interrupt device and the frequency converter are placed in the same installation panel you can use a regular cable instead of a protected one Electrical Installation EMC prote...

Page 9: ...filled See the para graph EMC test results Safety earth connection The frequency converter has a high leakage cur rent and must be earthed appropriately for safety reasons acording to EN 50178 The ear...

Page 10: ...4 20 mA 0 4 20 mA COM 68 69 4 5 0 10 V or 4 20 mA Open Loop input 0 10V between 53 55 to external Frequency converter CD302 Compressor Drive TM RS 485 Analog output Analog input 6 Incorporate securit...

Page 11: ...if the motor compressor remains in the coasted state 4 Then send Reset signal via Bus Digital I O or Reset key The test step is passed if the motor compressor gets operational again 5 The commissioni...

Page 12: ...iping oil return Reset start Power output from CD302 drive Yes No Check Alarm 14 15 30 31 32 38 Earth Fault Output side Short circuit Output side Motor phase missing Internal fault Check motor cable C...

Page 13: ...pass Or recycled Missing CD 302 back side Metal sheet Turn off power Reset Start 24V supply to terminal 37 direct wire external controls inserted Check Alarm continue Speed limit low Automatic restart...

Page 14: ...I No need to change any other parameter this is factory setting Quick setup The following lines describe the basic procedure to run the CD302 1 Connect the power supply to the terminals L1 L2 and L3...

Page 15: ...the keys to move the cursor OK is used for choosing a parameter marked by the cursor and for enabling the change of a para meter Local Control Keys for local control are found at the bottom of the con...

Page 16: ...Change from Open Loop factory set to Pro cess Loop Select Quick Menu Select Q3 PID Closed Loop Par 1 00 change to 3 Process Par 3 01 change to 71 bar Par 3 02 enter pressure sensor low range value fac...

Page 17: ...rameter will be ignored 0 61 Access to Main Menu w o Password Option Full access 0 Read only 1 No access 2 Function Select Full access 0 to disable the password defi ned in par 0 60 Main Menu Password...

Page 18: ...Minimum Reference unit matches the choice of configuration in par 1 00 Confi guration Mode for Speed closed loop 1 the unit selected in par 3 01 Reference Feedback Unit 3 03 Maximum Reference Enter th...

Page 19: ...y two phases it can be da maged by overheating Retaining the On setting is therefore strongly recommended This parameter cannot be adjusted while the motor is running Parameters Digital In Out Paramet...

Page 20: ...eded by the integrator to reach the same gain as the proportional gain 7 35 Process PID Differentiation Time Range 0 00 10 00 s 0 00s Function Enter the PID differentiation time The differen tiator do...

Page 21: ...54 Cut in pressure is set at 3 000 bar in parameter 13 12 0 Comparator value Cut out pressure is set 1 000 bar in parameter 13 12 1 Comparator value Anti short cycle by adjusting minimum dura tion bet...

Page 22: ...trolled by a switch connected to terminal 18 05 12 Terminal 27 Coast inverse Stop function coast inverse linked to safety line of the system HP LP switches 06 10 Terminal 53 Low Voltage 0 Minimum valu...

Page 23: ...rminal 54 Low Voltage 1V Minimum value in V for the pressure transmitter s range Depends on output from the feedback device Nor mally no changes are needed 06 21 Terminal 54 High Voltage 5V Maximum va...

Page 24: ...ref Feedb value 6 25 r w 12 Param Designation Param number Customer access Common parameters for all compressors Speed PID Feedback Source 7 00 Read Motor Feedb P1 02 PID Gain 7 02 Read 0 005 PID Inte...

Page 25: ...90 RPM 90 RPM 90 RPM Speed limit for stop function 1 81 Read 1800 1800 1500 1500 1500 1500 1500 Min reference 3 02 r w 2100 2100 1800 1800 1800 1800 1800 Max reference 3 03 r w 5400 5400 5400 5100 540...

Page 26: ...PM 90 RPM Speed limit for stop function 1 81 Read 1800 1800 1500 1500 Min reference 3 02 r w 2100 2100 1800 1800 Max reference 3 03 r w 5400 5400 5400 5100 Ramp down time running sec 3 42 r w 0 3 0 3...

Page 27: ...RPM Speed limit for stop function 1 81 Read 1800 1800 1500 1500 1500 1500 1500 Min reference 3 02 r w 2100 2100 1800 1800 1800 1800 1800 Max reference 3 03 r w 5400 5400 5400 5100 5400 5400 5100 Ramp...

Page 28: ...the right to alter its products without notice This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specification...

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