HUAYUAN MAM860 User manual

MAM860 (IV)
Oil-Free Scroll Air Compressor Controller
Operation Manual

Contents
I. Introduction ................................................................................................................................................... 1
Ⅱ. Description of Keys.................................................................................................................................... 1
Ⅲ. Status Display and Operation ..................................................................................................................... 3
Ⅳ. Viewing Running Parameters..................................................................................................................... 4
Ⅴ. List of User Parameters .............................................................................................................................. 5
Ⅵ. List of Manufacturer Parameters................................................................................................................ 8
Ⅶ. Adjustment Parameters............................................................................................................................. 11
Ⅷ. Operation Authority and Password Management .................................................................................... 14

1
1. Introduction
I. Introduction
Huayuan oil-free scroll air compressors are equipped with a microcomputer controller for intelligent
automatic operation of air compressors, including automatic pressure control, real-time display of
failure messages, protection shutdown, networking group control, etc. Four lines of text can be
displayed on the LCD screen where operators can set parameters and check operating status of
compressor via man-machine dialog.
Ⅱ. Description of Keys
Power
Run
Fault

2
2. Description of Keys
Start key
When the air compressor is in standby mode, press this key to
start it;
In connection mode,
the air compressor with a communication
address of 1 serves as the host,
press this key to start the air
compressor, and the connection control starts at the same time.
Stop key
When the air compressor is running, press this key to stop it;
When a host is used in connection mode, press this key to stop
the air compressor and the connection control stops at the same
time.
When the equipment is in shutdown state, long press this key to
display the information of software version.
Load /
Unload key
When the air compressor is running, this key serves as Load /
Unload key.
In setup mode, press this
key for confirmation and save input
data.
Confirm key
Down key
When viewing parameters, press this key to move the scroll bar
down;
When modifying data, press this key to decrease the flashing
data value in the current position.
Dec key
Up key
When viewing parameters, press this key to move the scroll bar
up;
When modifying data, press this key to increase the flashing
data value in the current position.
Inc key
Shift key
When modifying data, this key serves as Shift key and press it
to move the blinking cursor to the next bit;
When selecting menus, press this key to enter the lower level
menu of the current menu.
If the current menu does not have a lower-level menu, enter the
setup mode of the current menu, and the data on the current
menu starts to flash.
Enter key
Return key
In setup mode, press this key to exit the setup mode;
When viewing parameters, press this key to return to the
previous menu;
In case of fault shutdown, long press this key for 5 seconds to
reset the fault.
Reset key

3
Welcome to Scroll Compressor
Temperature: 78℃78℃
Pressure: 0.53MPa Double
Host 1#: Stop 2#: Stop
Equipment Stops
Running Parameters
User Parameters
Manufacturer Parameters
Adjustment Parameters
3. Status Display and Operation
Ⅲ. Status Display and Operation
When the controller is powered on, the following interfaces are displayed:
After a delay of 5 seconds, the main interface is
displayed as follows:
Press Down key to enter the menu selection
interface below.
Display interface after
power-on

4
4. Viewing Running Parameters
Ⅳ. Viewing Running Parameters
Press or key to move the black scroll bar to the "Running Parameters" menu, and then press
key to enter the next menu:
Press or key to move the scroll bar to corresponding menu. Press key to view specific
parameters, e.g. move the scroll bar to the "Voltage and Air End Current" menu to view voltage and air
end current. Press key to enter the interface of host and fan current.
M1 M2
0V
A
0.0
0.0
B
0.0
0.0
C
0.0
0.0
Press key to return to the previous menu or main interface. If you stop operating on a certain interface,
the system will automatically return to the main interface after 60 seconds.
History Fault
Production Date and Number
Current Fault
Communication Status
Voltage and Air End Current
Total Running Time
Current Running Time
Maintenance Parameters

5
5. List of User Parameters
Ⅴ. List of User Parameters
In the first-level menu, press or key to move the black scroll bar to the "User Parameters" menu,
and then press key to enter the menu below:
Level 1 Menu
Level 2
Menu
Initial
Value
Function
Pressure and
Temperature
Preset
Single Load 00.50MPa
Set the loading pressure in single-host operation
mode.
Single
Unload
00.90MPa
Set the unloading pressure in single-host
operation mode.
Fan Start
Temperature
0080℃
When the exhaust temperature is higher than this
set value, start the fan to run.
Fan Stop
Temperature
0070℃
When the exhaust temperature is lower than this
set value, stop the running of the fan.
Double Load 00.60MPa
Set the loading pressure in double-host operation
mode.
Double
Unload
00.80MPa
Set the unloading pressure in double-host
operation mode.
Start/Stop
Delay Preset
Air End 1
Delay 0006 s
Set the start time of Air End 1;
When Air End 1 starts, timing starts. During
this time, it does not provide protection against
overload and avoids the impulse current when
the motor starts.
Air End 2
Delay 0006 s
Set the start time of Air End 2;
When Air End 2 starts, timing starts. During
this time, it does not provide protection against
overload and avoids the impulse current when
the motor starts.
Load Delay 0005 s
After the air compressor starts, it will load and
run after delaying the set time.
Stop Delay 0010 s
After pressing Stop key or the pressure is higher
than the "single unload pressure", the release
valve opens. After a delay of this time, the host
stops.
Restart Delay 0008 s
After shutdown, restart the machine after a delay
of this time to prevent the motor from starting
frequently.
Double Delay 0030 s
In double-machine mode, wait at least the set
time before sending the next control command
after starting or stopping a host.
Language: Chinese
User password: ****
Pressure and Temperature Preset
Start/Stop Delay Preset
Operation Mode Preset
Connection Parameter Preset

6
5. List of User Parameters
Level 1
Menu
Level 2
Menu
Initial
Value
Function
Start/Stop
Delay
Preset
Double
Rotation 0002H
In double-machine mode, if one host is working while
the other is idle in the system, the system makes the
working machine rest and the idle machine work when
it reaches the preset double rotation time.
Operation
Mode
Preset
Start/Stop
Mode Local / Remote
When set to Local, the air compressor cannot be started
or stopped by remote switch; when set to Remote, the
air compressor can be started or stopped by both
remote switch and local switch.
Loading
Mode Auto / Manual
When set to Manual, the loading and unloading of the
air compressor need to be operated manually after it is
powered on; when set to Auto, the air compressor
automatically loads and unloads according to pressure
after it is powered on.
Communica
tion Method
No/Comp
uter/Conn
ection
When set to No, communication does not work; when
set to Computer, it serves as a slave and communicates
with external devices according to MODBUS protocol;
When set to Connection, multiple air compressors can
be networked for running.
Communica
tion Code 0001
Used to set the communication address for connection
or communication with host computer;
When set for connection, the allowable range is 0-16;
when set for communication with host computer, the
allowable range is 0-99.
Host
Selection
Single /
Double
Single-host control or double-host control is optional.
Single-host
Operation
No.1 /
No.2
No.1 or No.2 host is optional.

7
5. List of User Parameters
Level 1
Menu Level 2 Menu Initial Value Function
Connection
Parameter
Preset
Connection
Status Host / Slave
Multiple machines are connected as "host" or "slave"
for operation, and the host controls the start, stop,
loading and unloading of the slave according to air
pressure.
Rotation Time 0099
hrs
When connected for operation, set the working of the
machines within the allowable pressure range, and the
machines rotate in turn after the preset time.
Number of
Connected
Machines 0000 When connected for operation, set the number of air
compressors in the network.
Connection
Lower
Pressure
Limit
00.00
MPa
When connected for operation, find a machine in the
network to load or start when the host pressure is lower
than this preset pressure.
Connection
Upper
Pressure
Limit
00.00
MPa
When connected for operation, find a machine in the
network to unload or stop when the host pressure is
higher than this preset pressure.
Connection
Delay 0050 s When connected for operation, set the wait time for
continuously sending control command twice by the
host.
Language
Selection Chinese Chines e
User
Password **** **** User or manufacturer can modify the user password after permissions are verified.

8
6. List of Manufacturer Parameters
Ⅵ. List of Manufacturer Parameters
Parameters used to store relevant data set by air compressor manufacturers. To view manufacturer
parameters, the manufacturer password must be verified. In the first-level menu, press or key to
move the black scroll bar to the "Manufacturer Parameters" menu, and then press key to enter the
menu below:
After entering the correct manufacturer password and pressing key, user can enter the manufacturer
parameter interface as shown below:
Parameter Item
Initial Value
Function
System
Parameters
Air End 1
Current
Maximum
allowable
motor
overload
current / 1.2
After delay start of Air End 1, the machine will
present a delay shutdown according to overload
characteristics when the motor current is more
than 1.2 times of the set value.
Air End 2
Current
Maximum
allowable
motor
overload
current / 1.2
After delay start of Air End 2, the machine will
present a delay shutdown according to overload
characteristics when the motor current is more
than 1.2 times of the set value.
Temperature
1
Warning
105℃When Air End 1 temperature is higher than this
set temperature, a warning will be given.
Temperature
1
Shutdown
110℃When Air End 1 temperature is higher than this
set temperature, fault shutdown will be reported.
Shutdown
Pressure
1.00MPa
When the air supply pressure is higher than the
set pressure, fault shutdown will be reported.
Maximum
Unload
Pressure
0.80MPa
Maximum allowable unloading pressure limited
by manufacture on user settings. Unloading
pressure is less than or equal to this set value.
Air End 1
Time
000000 hrs Modify the total running time of Air End 1.
System Parameters
Maintenance Parameter Reset
Maximum Operating Time Preset
Enter Password
****