MicroStep AHa-S2 User manual

1
Beijing Flourishing Start Control Technology Co., Ltd.
5F Building 2, No.9 Shuangyuan Road, Shijingshan District, Beijing, China 100041
Tel: [phone] Mobile (WhatsApp): 0086 159 010 69532 Email: [e-mail]
Skype: henryhaozq Wechat: hzq123chat QQ: 297041476
Arc Voltage Torch Height Controller
AHa-S2 & AHa-M2 Manual

2
Content
Safety---------------------------------------------------------------------------------------------------------3
Warranty-----------------------------------------------------------------------------------------------------3
Basic parameters------------------------------------------------------------------------------------------3
Technical features-----------------------------------------------------------------------------------------3
Installation dimension-------------------------------------------------------------------------------------4
Connection--------------------------------------------------------------------------------------------------5
Panel & function--------------------------------------------------------------------------------------------7

3
Safety
1. Please carefully read the manual before using the controller.
2. Professional workers use the controller.
3. It’s dangerous to be close to CNC equipment that is working.
4. When the equipment has problem, please power off first, then check and repair it.
5. The power supply is DC24V.
6. Use shielded cable to connect.
Warranty
Period: within 12 month from the date of delivering products
Range: it’s under warranty the product is damaged when it’s used normally. Other
situations are out of warranty.
Charge: it’s free to repair products under warranty.
Basic Parameters
Processor: industrial ARM process chip
Display: 4-digit nixie tube
Auto height range: 2~30mm
Height adjustment accuracy: ±0.5mm
Power supply: DC24V, 3A
Working temperature: 0~40℃
Current of driver inside THC: 1.8A (AHa-S2) and 3A (AHa-M2)
Technical Features
1. Height & sensitivity adjustment knob

4
The height and the sensitivity can be statically or dynamically adjusted with the knob,
and the value is saved in real time so that the operation is easier and faster. In
addition, the pulse adjustment knob can be used longer than the contact
potentiometer.
2. Industrial ARM processor
ARM embedded core has faster process speed, more powerful calculation and
stronger anti-interference ability.
3. Stepper driver
The controller has a built-in stepper driver that has bigger over-load current and
better liability.
4. Aluminum alloy structure
It has better mechanical strength.
Installation Dimension
Type 1

5
Type 2
Connection
Port CN1
Pin No.
Definition
Instruction
1
DC24V+ (input)
Connect with power supply DC24V+
2
DC24V- (input)
Connect with power supply DC24V-
3
DC24V+ (output)
Connect with THC divider DC24V+
4
DC24V- (output)
Connect with THC divider DC24V-
5
Arc voltage signal
Connect with THC divider arc voltage
Port CN2
Pin No.
Definition
Instrument
1
Manual/auto
Connect with THC signal of CNC

6
2
Up
Connect with torch up of CNC
3
Down
Connect with torch down of CNC
4
Arc input
Connect with arc strike of CNC
5
Auto cycle
Connect with arc strike of CNC
6
NC
useless
7
Location OK
Connect with torch location of CNC
8
Arc OK
Connect with arc success of CNC
9
Arc strike output
Connect with start signal of plasma power source
10
COM
Port CN3
Pin No.
Definition
Instruction
1
DC24V+ (output)
2
DC24V- (output)
3
Zero
Connect with zero point of lifter
4
Upper limit
Connect with upper limit of lifter
5
Lower limit
Connect with lower limit of lifter
6
NC
useless
Port 4
Pin No.
Definition
Instruction
1
A+
Connect A+ of lifter motor
2
A-
Connect A- of lifter motor
3
B+
Connect B+ of lifter motor

7
4
B-
Connect B- of lifter motor
5
Motor power +
AHb-S2: DC24V
AHb-M2: DC24V
6
Motor power -
Panel & Function
parameter &
state display
U: plasma mode, value: 30~250
Before arc strike, it’s the set arc voltage value. After arc strike, it’s the
actual arc voltage value.
The set arc voltage value decides the cutting height. Usually the
manual of plasma power source has a parameter table, including arc
voltage, speed, etc.
E: sensitivity, value: 1~10
When cut, the bigger the value is, the slower the track frequency is.
b: initial location height (pierce height), value 1~20mm
state indicator
light
Up: torch moves up
Down: torch moves down
U Limit: upper limit
L Limit: lower limit

8
Arcon: arc strike
Auto: auto state
set U value (cutting height)
set b value (initial location height/pierce height) after press the knob
in manual state
set E value (sensitivity)
one-key location (press the knob in manual state): the torch moves
down, then touches the plate, then moves up and stops at the
location height
initial location test, the same function as one-key location
the torch moves down, and before it touches the plate, when press up
& down keys, the location is cancelled
arc strike test, press the key to work, and press it again to stop
manual up & down key, press the key to work, and loose it to stop
Voltage divider box AHD1
AC220V L & N: connect AC220V power supply

9
Arc Voltage Input -(20~200)V: connect original arc voltage- of plasma power source
Arc Voltage Input +COM: connect arc voltage+ of plasma power source
Arc Voltage Input -(0.1~5)V: connect 50:1 arc voltage- of plasma power source.And
open the box, break the jumper JP2 and connect.
Arc Voltage Output: connect arc voltage signal of THC.
24V-/+: connect DC24V power supply
Voltage divider box AHD2
Voltage divider box AHD3
Pin No.
Definition
1(L) & 2(N)
Connect with AC100~240V power supply
3 (E)
Connect with ground
4(WK+)
5(ET-)
Connect with arc voltage output of plasma power source
If arc voltage output of plasma power source is 1:1,
then ONLY connect jumper 100:1 inside AHD3
If arc voltage output of plasma power source is 50:1,
then ONLY connect jumper 2:1 inside AHD3
6(NC) & 7(NC)
Not connect

10
8(VO+)
Connect with pin 5 “arc voltage signal”of CN1
9(VO-)
Connect with pin 4 ”DC24V- (output)”of CN1