EM882S Digital Stepper Drive User Manual
Motion Control Products Ltd. Tel.: (+44) 01202 599922
7.4 Auto-tuning and Motor Model Selection (Rotary Switch)
Auto-tuning means that the current loop parameters are automatically configured when the EM882S is powered on.
When the rotary switch is set to
“
0
”
, or
“
8
”
-
“
F
”
, you can turn off auto-tuning and modify current loop parameters
through ProTuner
Motor Model Selection means that the current loop parameters and resonant point damping parameters are
automatically configured when EM882S is powered on.
Every time change the rotary switch, you need to restart the power supply to activate the setting.
7.5 Smoothing Filter Time Configuration (ProTuner)
EM882S has an advanced feature called control command smoothing to make the input pulse from pulse generator
(controller, PLC, etc.) S-curve acceleration, to improve motion smoothness and high-speed start frequency in many
circumstances. The Filter Time value must be set to the same for each EM882S in multi-axis applications
7.6 Activated Pulse Edge Configuration (ProTuner)
The factory setting is activated at voltage rising edge, make sure this setting will match the pulse generator (controller,
PLC, etc.). When the stepper motors loss step, first this parameter for a test.
7.7 Control Mode Configuration (ProTuner)
The factory setting is single pulse (step & direction, or pulse & direction) control. Please modify this parameter when
you need the double pulse (CW/CCW) control mode.
8. Wiring Notes
⚫
In order to improve anti-interference performance of the drive, it is recommended to use twisted pair shield
cable.
⚫
To prevent noise incurred in PUL/DIR signal, pulse/direction signal wires and motor wires should not be tied up
together. It is better to separate them by at least 10 cm; otherwise the disturbing signals generated by motor will
easily disturb pulse direction signals, causing motor position error, system instability and other failures.
⚫
If only one power supply serves multiple EM882S drives, separately connecting the drives to the power supply is
recommended instead of daisy-chaining.
⚫
It is prohibited to pull and plug connector P3&P4 while the drive is powered ON, because there is high current
Motor
Code
Motor
Code
Default
0
Reserved
8
57CM23
1
Reserved
9
60CM30X
2
Reserved
A
86CM35
3
Reserved
B
86HS40
4
Reserved
C
86CM45
5
Reserved
D
86CM80
6
Reserved
E
86CM85
7
Reserved
F
