User’s Manual for FD556 Digital 2-Phase Stepper Driver
User’s Manual for FD556 Digital 2-Phase Stepper Driver
15 16
Note:
1
）
Different motors have different phase wire colors. When using the motor, the motor
data description shall be prevail, For example, the color of 57 and 86 motor wires is
different.
2
）
The phase is relative, but the windings of different phases cannot be connected to the
terminals of the same phase of the driver(A+,A- is one phase, B+,B- is another
phase). 57HS22 motor lead definition, Series and Parallel Connections method is
shown below.
3
）
FD556S driver can only drive 2-phase hybrid step motors, which cannot drive
3-phase and 5-phase stepping motor.
4
）
The method of judging whether the stepping motor is connected in series or in
parallel is correct, When the driver is not connected, directly rotate the motor shaft
by hand, If it can rotate easily and evenly, then the wiring method is correct; If the
resistance is large and uneven rotation with a certain sound, then the wiring method
is incorrect.
Ⅷ
.Protection Functions
1
）
Short Circuit Protection / Over-current Protection
Over-current protection will be activated when continuous current exceeds the limit
current value or in case of short circuit between motor coils or between motor coil and
ground, and RED LED will turn on once within each periodic time (3 s). Reset the driver
by repowering it to make it function properly after removing above problems.
2
）
Over Voltage Protection
When power supply voltage exceeds 90VDC, protection will be activated and RED
LED will turn on twice within each periodic time (3 s). Reset the driver by repowering it
to make it function properly after removing above problems.
3
）
Phase Error Protection
Motor power lines wrong & not connected will activate this protection. RED LED
will turn on four times within each periodic time (3 s). Reset the driver by repowering it
to make it function properly after removing above problems.
Attention:
since there is no protection against power leads (
﹢
,
﹣
) reversal, it is critical
to make sure that power supply leads correctly connected to driver. Otherwise, the driver
will be damaged instantly.
Ⅸ
.Frequently Asked Questions
1. Problem Symptoms and Possible Causes
Symptoms
Possible Problems
Solution
No Power
Check the power supply circuit for normal
power supply
The motor shaft
srong, Control
signal is too weak.
Control pulse signal is too weak, Signal
current increased to 7~16mA
microstep
resolution is too
small
select the right microstep resolution setting
Figure 7 Typical Connection
控
制
器
R
R
R
FD556S
PUL+
PUL-
DIR+
ENA+
DIR-
ENA-
DC36V
GND
+Vdc
TO57-21
A+
A-
B-
B+
Lead definition
Tandem
Parallel
57HS22
57HS22
57HS22
蓝
S45
红
S45
黄
S45
绿
S45
白
S45
橙
S45
棕
S45
黑
S45
Figure8 Tandem and Parallel connection
