Growatt MID 33-50KTL3-X2 User manual

1.
2.
17811 12109
(1)Front panel (2)Touch button (3)LCD screen (4)LED indicator (5)Mounting bracket
(6)Heat sink (7)DC switch (8)PV terminal (9)RS485 port (10)USB port
(11)Vent valve (12)AC terminal
1.This document is for quick installation guidance only, please refer to User Manual for more details.
2.Growatt shall not be liable for any damage resulting from unproper installation.
Note:
MID 33-50KTL3-X2 Quick Guide
234
Note：
1.When drilling holes in the wall, avoid water and electricity pipes, otherwise it may cause danger.
Overview
Installation
System overview 2.1 Installation requirements
2.2 Wall mounting
2.3 Communication module installation
Inverter side
Inverter side Inverter side
Inverter side
▲Up
UninstallInstall
3.
Electrical connection
Please prepare the cable before connecting as follows.
No.
Cable name
Type
Recommend model
1
Protective grounding
wire
Single multi-core yellow-green wire
16mm² - 20mm²
2
AC output wire
four or five polychromatic
multi-core copper wires
30mm² - 35mm²
3
PV input wire
PV wire（such as PV1-F)
4mm² - 6mm²
4
Communicatio wire
RS485
/
1.Please make sure all switches are in “OFF”
position before wiring. For personal safety,
please do not operate with electricity.
2.If the diameter of the cable does not match
the terminal, or the cable is aluminum wire,
please contact our after-sales personnel.
Note:
3.1 Grounding
Connect to the inverter
side.
It is recommended to use 30-35mm²
cable.
Install the AC side water
proof cover.
3.2 AC output connection
3.3 DC connection
3.3.1 PV input terminal installation
Keep the
bracket
installed
horizontally.
8-10mm
123
45
4mm² - 6mm²
4mm² - 6mm²
Positive metal terminal
Positive metal terminal
Negative metal terminal
Negative metal terminal
Negative metal terminal
Please make sure the cable can not be
pulled out after pressing.
Pull the PV cable make sure there
is no loose or shaking.
Make sure the cable polarity is
correct and voltage is less than
1100V.
56
≥500mm
≥300mm
≥500mm
≥500mm
230
218
230
579
260 112
433
287
10-12mm
inverter side
Note:
Waterproof must be blocked with fireproof
mud to prevent water.

GR-UM-233-A-01
PV+
PV-
12
3.3.2 Plug in PV terminal
Note:
1.Before installing the PV terminal, please
double-check that the PV input voltage and
current do not exceed the MPPT limits.
2.When installing the PV terminal, pay
attention to the difference between the
positive and negative poles and the one-to-
one correspondence between the terminals
and the machine.
3.There is a "click" sound when the terminal
is connected,please gently pulling the PV
wire to make sure there is no loose or
pulling off.
3.3.3 Communication cable installation
Click
Click
Download
Manual Growatt New Energy
No.
Acceptance criteria
No.
Acceptance criteria
1
The inverter is installed correctly, firmly and reliably.
6
The RS485 communication cable is installed correctly and firmly.
2
The ground wire connected well and the connection is firm
and reliable.
7
The cable tie port is trimmed well without leaving sharp
corners,meets the requirements of the user.
3
All switches are in the OFF state.
8
All exposed terminals are well protected and there are no vacant
ports.
4
All wiring is correct and securely connected.
9
Pay attention to clean up all construction residues.
5
The wiring of the cable is reasonable, meets the
requirements, and there is no phenomenon of broken skin.
The following table describes how we can connect EASTRON meter (TPM-E)to inverter:
Meter Pin NO.
Description
Meter Connection
1/2/3/4
L1/L2/L3/N-in
Grid L1/L2/L3/N
5/6/7/8
L1/L2/L3/
N-out
AC connector & Load L1/L2/L3/N
A
RS485A
COM Port Pin 7 RS485A3
B
RS485B
COM Port Pin8 RS485B3
Customer can read more information by push button.
Mark
Describe
Explain
Touch mark
Single touch
Switch the display interface or the
current number plus 1
Double touch
Enter the setting state or confirm
Triple touch
Return to the previous display
interface
Long press for 5s
The current data returns to the
default value
Inverter status indicator
Red
Fault
Green
Normal operation
Red light flashing
Warning
It can display the basic information of inverter through LCD display
screen (PV/AC voltage,PV power,AC current,total power,generating
capacity, etc.).
Shenzhen Growatt New Energy CO.,LTD
4-13/F,Building A,Sino-German(Europe) Industrial Park,
Hangcheng Ave, Bao’an District, Shenzhen, China
[phone]
www.ginverter.com
T
E [e-mail]
W
Note:
Exporlimit
OFF ON
Password
123
Set parameter
General
Advanced
Meter
CT
ExportLimit Rate
XXX.X%
Set OK
If the local grid company requires to limit the
output power from your inverter systems,we
introduce the concept of Export Limit Rate.The
ratio of your system output power divided by
the rated power of the inverter is called Export
Limited Rate.For example,if the local grid
companyonly accepts 4kW from your 5kW
system,then the Export Limit Rate of 5kW
inverter should be 80%.
Inverter side
Click!
Click!
No.
Description
Remarks
1
+12V
Dry junction : external
relay coil interface,
power is not more than
2W
2
COM
3
RS485A1
RS485 communication
port
4
RS485B1
5
RS485A2
BAT communication
port(reserved)
6
RS485B2
7
RS485A3
Meter communication
port
8
RS485B3
9
DRM1/5
Relay contact 1 input
10
DRM2/6
Relay contact 2 input
11
DRM3/7
Relay contact 3 input
12
DRM4/8
Relay contact 4 input
13
REF/GEN
GND
14
DRM0/COM
/
No.
RRCR
Description
Active
Power
9
K1-out
0%
10
K2-out
30%
11
K3-out
60%
12
K4-out
100%
13
Relays common
node
/
14
/
/
When connecting the communication line,port 15 and 16 are not connected,as for the other function,please refer to the above table
according to the customer needs.
Note:
connect
to RRCR
Beforeturningtheinverteron,pleasemakesurethePVinputvoltageandcurrentarewithintheMPPTlimits.
Followthestepsbelowtoturntheinverteron:
1.Switchonthebuild-inDCisolatoratthebottomoftheinverter.
2.SwitchonthePVArrayandDCisolatornexttoyourinverter,ifyoucannotfindthisswitch,skipthisstep.
3.SwitchontheSolarACisolatoriftheinverterismorethan3metersawayfromyourswitchboard.
4.Switchonthesolarsupplymainswitchintheswitchboard.
To shut down your system, follow this guide in reverse order.
4.
Connecting Meter
L1
L2
L3
N
L1
L2
L3
N
1
2
3
4
L1
L2
L3
N
5
6
7
8
B A
RS485
485B2485A2
LOAD
5.
Post-installation check
6.
Power on and off steps
7.
Status of PV grid inverter
8.
Export limitation setting
9.
Service and contact