Plot MAM-880 User manual

SCREWAIRCOMPRESSOR
TYPE: MAM-880（B）
USER
MANUAL
Shenzhen Plot electronic Co., Ltd
Address：Sixth floor, twenty fifth building, TIAN JIAN industrial estate,
SHANG BAO road; FU TIAN district; SHEN ZHEN
Telephone：[phone] 83172068 Postal code：518034
Fax：[phone] E-mail：[email protected]
Web site：www.pltsz.com

NOTICE
Please read instruction manual before usage
Installation of MAM—8** can be performed only by professional technicians
Assembling position shall be considered carefully during mechanical installation in order to ensure
good heat dissipation and reduce electromagnetism interferences
Wiring shall be performed respectively according to regulations for heavy and weak current to reduce
electromagnetism interferences
Surge absorber must be communicated with inductive load such as AC contactor of output control of
relay
Output wiring shall be inspected carefully before switch up
Earthing terminal of this body part shall be earthed correctly (the third type of earthing) to increase
product’s capacity of resisting signal noise.
Motor’s rated current (current for stopping instrument automatically) shall be set according to rated
current indicated on motor’s name plate ×overload current multiplication factor of
motor/ 1.2
Features：
● LCD Chinese / English display
● With control functions of starting, stopping and operation for motor.
● With protection functions of preventing reverse rotation of air compressor.
● Temperature measurement and control
● Automatic adjusting of rate of load and controlling of pressure balance
● Selections of remote and local control
● Selections of interlocking and independent
● Function of RS485 communication

1、Basic Operation....................................................................................................................................................4
1、Button Explanation.......................................................................................................................................4
2、Indicator instructions....................................................................................................................................4
3、Display of status and operations...................................................................................................................5
4、Operating parameters....................................................................................................................................5
5、User Parameter (Customer Parameter):........................................................................................................6
6、Customer Parameter and Functions..............................................................................................................7
7、Factory Parameters.......................................................................................................................................9
8、Manufacturers and function..........................................................................................................................9
9、Calibration parameters................................................................................................................................10
10、the operating authority and password.......................................................................................................12
2、Technical parameters and functions .................................................................................................................12
3、Type and specification......................................................................................................................................13
1、Instruction of type ....................................................................................................................................13
2、Specification table for power of suited motor ............................................................................................13
4、Installation..........................................................................................................................................................14
1、Installation of transducer..........................................................................................................................14
2、Controller Installation.................................................................................................................................15
3、Terminal arrangement diagram...................................................................................................................15
5、Control principles.............................................................................................................................................16
1、LocalAutomatic control.............................................................................................................................16
2、. Remote automatic control.........................................................................................................................17
3、Local manual control................................................................................................................................17
4、Remote Manual Control.............................................................................................................................17
5、Network control........................................................................................................................................17
6、Temperature control of fan .......................................................................................................................18
7、Failure shutdown and emergency shutdown.............................................................................................18
6、Early-warning and prompts..............................................................................................................................18
1、Indication of early warning of oil filter ....................................................................................................18
2、Indication of early warning for air filter...................................................................................................18
3、Indication of early warning for oil separator............................................................................................18
4、Indication of early warning for lubricating oil ......................................................................18
5、Indication of early warning for grease ........................................................................................18
6、 Indication of early warning for belt ..........................................................................................18
7、High air temperature warning ............................................................................................................18
7、Controller protection ........................................................................................................................................19
1、Motor protection.......................................................................................................................................19
2、Gas Exhaust Over-temperature Protection ...............................................................................................19
3、Non-reversing Protection of Air Compressor...........................................................................................19
4、Overpressure Protection of Pressure Supply............................................................................................19
5、Malfunction Protection of Sensor.............................................................................................................19
8、Removal of Common Failures..........................................................................................................................19
1、Failures Review.........................................................................................................................................19
2、Common Failures and Causes..................................................................................................................20
9、Electrical diagram...............................................................................................................................................20

1、Basic Operation
1、Button Explanation
Figure 1.1.1
——Start Button: Press this button to start the compressor。
——Stop button：Press this button to stop the compressor。
——Set Button/ Loading / unloading Button: After modification, press this to confirm and
save modified data；When the compressor is running ,press this button to load or unload
under a certain pressure.
——Move up button/increase button: Data at current position is increased by pressing this
button when data are modified; Menu is moved upwards when menu is selected.
——Move down button / Descending button: Data at current position is descended by
pressing this button when data are modified; menu is moved downwards when menu is
selected.
——Shift button /Enter button: This button services as shift button when data are modified
and services as enter button when menu is selected.
——Back button / Reset button: This button services as back button when operate menu to come back
Parent menu; resetting is carried out by pressing this button for a little long time when failure
shutdowns
2、Indicator instructions

3、Display of status and operations
The display screen will be as follow when the units are powered on:
After power on, screen show this page
After 5 seconds, the main page will show up as:
Main page
Press “Move down button” to enter into Menu Selection Interface:
Level 1 menu screen
4、Operating parameters
Press “Move down button” or “Move up button” to move the black cursor to “RUN
PARAMETER”, press enter button to pop up submenu:
WELCOME USING
SCREW COMPRESSOR
AIR T：20℃
AIR P：0.60MPA
NORMAL STOP
C001 REMOTE
RUN PARA.
USER PARA.
FACTORY PARA.
CALBR PARA.
MOTER FAN CUR
TOTAL RUN TIME
THIS RUN TIME
MAINTAIN PARA.
HISTORY FAULT
SERIAL NUMBER
THIS FAULT
COM STATUS
Air filter indicator, when the air
filter warning light.
High temperature, the indicator light; Temperature
sensor fault the indicator light;
Oil filter indicator, when the air
filter warning light.
Oil separator warning, the indicator light。

Move the scroll bar to the corresponding menu item, press the enter key, see
the specific parameters, Such as view, "MOTER FAN CUR " move the scroll bar to
the " MOTER FAN CUR " menu item, press the enter key, switch to the motor and
fan current interface
If the menu popped up is at the last level, the black cursor will disappear. Press the
return button to return to the upper menu or the main page.。If the operation stops at a
certain page, it will automatically return to the main page after 60 Seconds
5、User Parameter (Customer Parameter):
In primary menu,, press the move button to move the black slider to the "USER
PARA." menu, press the shift button to switch to the following menu:
Move the cursor to the "P、T SET " menu, then press enter button to switch to
the following interface:
Move the cursor to the “LOAD P” menu, Press enter button ，Switch to the following
interface requirements to enter a user password
After showing this interface，The first bit data or password started flashing，
press “increase button” or “descending button” to modify the flashing data equal
MAIN（A）FAN （A）
A 50.1 2.1
B 50.1 2.1
C 50.1 2.1
P、T SET
TIME SET
OPERATION MODE
SEQ PARA. SET
LOAD P：
00.62 MPa
UNLOAD P：00.78MPa
FAN START：0080℃
FAN STOP：0075℃
INPUT CODE
**
**
CLR LIFE TIME
MAX LIFE TIME
LAN. SEL:EN
NEW USER PIN：****

to the first bit of password，Press the shift button, move the cursor to the next
data bit,modify the current data is equal to the second password data,
Accordance with the above , modify the third and fourth Finally, press the “Set
button” to confirm the input, the system verify the password is correct, switch to the
following interface:
The upper right corner with "* "prompt
said the system has passed the password
authentication
In as shown above interface, press “enter button” , then the data of loading pressure start to flash, users
can press “increase button” or “Descending button” to modify the present data. When finished, press
“Set Button” to confirm and save. the controller prompt sends out the short voice to tip.
6、Customer Parameter and Functions
First
Submenu Second submenu Preset Value Functions
SET P. T.
LOAD P. *.**MPa LOADING PRESSURE VALUE
UNLOAD P. *.**Mpa UNLOADING PRESSURE VALUE
FAN START ***℃
Control the fan starting. This value will
be set as “120℃” if there is no fan
present or the fan is not required to be
protected.”
FAN STOP ***℃Control the stopping of the fan
TIME SET
HOST START 0008S
When using the controller to protect the
motor, it is required that the time set here
will not meet the impulse starting current
of the motor, the value here must be
longer than the STAR DELAY TIME
plus LOAD DELAY TIME
FAN START 0006S
When using the controller to protect the
motor, it is required that the time set here
will not meet the impulse starting current
of the motor.
STAR DELAY 0006S Star pressure descending start delay time.
LOAD DELAY 0002S The loading delay time after star pressure
descending.
EMPTY DELAY 0020M Load free continuous running time, the machine will automatically stop after this
time
STOP DELAY 0010S The machine will not stop until the load
free running status lasting till this time
START DELAY 0100S Machine can not be restarted before this set time after stopped or over time
operation at load free state
OPERATION
MODE ON/OFF MODE NEAR/FAR
When the remote mode is set, both the
button on the controller and the remote
control button can turn on and off the
machines;When the near mode is set,only
the button on the controller can turn on
and off the machines.
LOAD P：
00.62 MPa *
UNLOAD P：00.78MPa
FAN START：0080℃
FAN STOP：0075℃

LOAD MODE AUTO/MANU When the manual mode is set, the Load/Unload function can only be
executed by pressing “load/unload’button
COM MODE BAN/COMP./BLOCK
When this is set as “BAN” the
communication function is not available
When this is set as “COMP. ”
the
Controller as a slave, in accordance with
MODBUS protocol communications
with external devices
When this is set block,block control
active
COM ADD 0255 Communication address
BLOCKING
MODE
SEQ STATE SLAVE
Service as main or assistant air
compressor during interlocking
operation. The MAIN controls the
SLAVE
TURN TIME 9999 Hours
During interlocking operation, if one air
compressor continuously operates for
time period more than time set here and
rest time of one air compressor in
interlocking network has reached the
time set here, alternative rest is achieved
by starting the resting air compressor and
stopping the operating air compressor
SEQ NUMER 0016 Number of air compressors in interlocking network during interlocking
operation
SEQ LOAD *.**MPa
The main air compressor searches for one
device in the interlocking network for
loading or starting when main air
compressor’s gas supply pressure is less
than the value set here during
interlocking operation
SEQ U.L. *.**MPa
The main air compressor searches for one
device in the interlocking network for
unloading or stopping when main air
compressor’s gas supply pressure is more
than the value set here during
interlocking operation
SEQ DELAY 0030S The least waiting time that the main air compressor needs to continuously sends
control commands two time
CLR LIFE
TIME
OIL FILTER 0000H Reset time for the duration of oil filter
changing
O/A FILTER 0000H Reset time for O/G Separator changing
AIR FILTER 0000H Reset time for gas filter changing
LUBE 0000H Reset time for Lubricate Oil Changing
GREASE 0000H Reset time for Lubricate Grease
Changing
BELT 0000H Reset time for Belt Grease Changing
MAX LIFE
TIME
OIL FILTER 9999H Set this value to “0” will make the oil
filter alarm not available
O/A
SEPARATOR 9999H Set this value to “0” to disable the O/G separator alarm function
AIR FILTER 9999H Set this value to “0” to disable the alarm
function of gas filter

LUB 9999H Set this value to “0” to disable the time
alarm of lub. oil
GREASE 9999H Set this value to “0” to disable the time
alarm of Lub. Grease
BELT 9999H Set this value to “0” to disable the time
alarm of belt.
LANG.SEL EN/CH EN
Set this value to “EN” , Display text in
English
Set this value to “CH” , Display text in
Chinese
NEW USER
PIN **** **** Customer could modify the user password
7、Factory Parameters
The factory parameters can be looked over and modified with manufacturer password, but its operation
method is the same as that of user parameters. Please refer to following table for main functions and
purposes.
Manufacturers enter the correct password，press set button, switch to the factory
parameters of the interface as follows
………
Factory parameters "run time", "phase sequence protection," "Frequency
Selection" and the time need check super password to changes.
8、Manufacturers and function
PARAMETER Initial Value Functions
MOTOR CUR MAXIMUM OVERLOAD VAULE OF
THE MOTOR /1.2
After the starting delay time, when the motor current
is greater than 1.2 times of the set value and less than
4 times of the set value, the unit will jump as per
overload feature.
FAN CUR Maximum allowable
motor overload value/1.2 Same as above
ALARM T. 105℃Pre-alarm when the temperature reaches this set value
STOP T. 110℃Alarm when the air exhausting temperature reaches
this set value.
INPUT CODE
**
**
MOTOR CUR：100.0A
FAN CUR：010.0A
ALARM T：0105℃
STOP T：0110℃
STOP P：00.90MPa
MAX U.L.：00.85MPa
RUN TIME：001234H
LOAD TIME：001001H

STOP P. 1.00MPa Alarm and stop the machine when the air supply
temperature reaches this set value
MAX U.L. 0.80MPa The Unload Limit Pressure in the Customer Parameter
must be set lower than this value.
RUN TIME ****Hours The manufacturer can modify the total running time
LOAD TIME ****Hours The manufacturer can modify the load running time
CLR FAULT **** Input the history failure password to clear all the
history failures.
CUR UN.BAL. 0006
When (the max. phase current / min. phase current) is
not greater than (1+set value), the unbalance
protection will stop the machine. If the set value is
greater than 15, the unbalance protection will be
unavailable.
LACK PAHSE 005.0 If set time of phase failure ≥20 seconds, phase failure doesn’t function; If unbalance protection is activated,
it will stop operation.
DATA ****-**-** The manufacturer input the product date of the unit.
SERIAL ******** The manufacturer input the product No. of the unit
PHASE PRO. ON/OFF ON:Select sequence protection
OFF:Not select sequence protection
POWER FREQ 50H Set the power frequency
HIGH VOL. ****V
Controller detects the voltage higher than
the set value, the shutdown protection,
reported voltage is too high. Set this value
to 0000, the high voltage function is no
function
LOW VOL. ****V
Controller detects the voltage lower than
the set value, the shutdown protection,
reported voltage is too low. Set this value
to 0000, the low voltage function is no
function
LOW T PRO- -48℃
Controller detects the temperature is lower
than this value, display temperature is
too low, not allowed to start the air
compressor
TIME LIM 0000H
When the compressor run time is greater than TIME
LIM set, the controller will stop the compressor and
alarm ;
If the value set as ‘0000’the function is disable.
ALM STOP 0010H Warning time over here to set, compressor
report "warning too long" and stop
COM SET PARA ON/OFF
PARA1 ****
9、Calibration parameters
Calibration parameter used to set the controller data，Does not allow unauthorized users to view and
modify
PARAMETER Initial Value Functions
M
O
T
O
R
TARGET CUR 0000
Enter the current value, the controller will detect
user input value divided by the current to the
current value, calculate the current coefficient
COEF 1.000 Calibration current, the input coefficients.