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DB25: 2
DB25: 3
DB25: 4
DB25: 19
DB25: 15
Figure 1.5.7: SPI Logic Level Shifting and Conditioning Schematic
NOTE: If making your own parameter setup cable, be advised the 3.3V output parallel
ports on some laptop PC's may not be sufficient to communicate with the device
without use of logic level shifting and conditioning Interface.
M i n i m u m R e q u i r e d C o n n e c t i o n s
The connections shown
here are the minimum
required to operate the
MDrive Speed Control.
S e c u r i n g M D r i v e P o w e r , L o g i c a n d E n c o d e r L e a d s
Some applications may require that the MDrive move with the axis motion.
If this is a requirement of your application,
the motor leads (pluggable or flying) and the
Optional Encoder leads (if equipped) must
be properly anchored. This will prevent
flexing and tugging which can cause damage at
critical connection points in the MDrive
electronics and the Encoder. DO NOT bundle
the Logic Leads or Optional Encoder Leads
with the MDrive17/23 Power Leads.
Figure 1.5.9: Typical MDrive with Power Leads, Data Leads and
42
R1
2
100
330pF
C3
100K
+5V
3
R9
R10
R3
4
100
C4
330pF
19
R5
100
C5
330pF
R11
R7
15
49.9
Figure 1.5.8: Minimum Required Connections
Optional Encoder Leads Secured
1
R2
3
2
U1:A
HCT125
49.9
14
+5V
4
100K
R4
5
6
U1:B
HCT125
49.9
7
13
R6
12
11
U1:D
49.9
HCT125
100K
+5V
+5V
10
4.9K
R8
100K
R12
8
9
U1:C
HCT125
+5V
.1µF
C1
STOP/START SWITCH
10K Ohm POT
PARALLEL PORT
PC
MINIMUM REQUIRED CONNECTIONS
8
CLK
P2: 8
4
CS
P2: 4
7
MOSI
P2: 7
10
MISO
P2: 10
6
+5 VDC
+
1µF
P2: 6
C2
25V
5
GND
P2: 5
GND
+VDC
POWER SUPPLY
MD-CC100-000 or Equivalent
Connection required
ONLY
when setting up or changing
parameters
PIN 1
START
STOP
DIR
GND
+V
P2
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