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PMDX-132 User’s Manual
PCB Revision: PCB-466A
Document Revision: 1.0
Serial Numbers: 23410 and above
PMDX-132_Manual_10.doc
©2008 Practical Micro Design, Inc.
Page 21 of 24
17 April 2008
All Rights Reserved
Setting
Label
Description
1 to 2
normal
Pin 17 from the PC parallel port drives the “pin 17” control output on J9 as well as
the charge pump circuitry.
2 to 3
CP-OK
Pin 17 from the PC parallel port drives only the charge pump circuitry. The “pin
17” control output on J9 is driven “high” or floats low based on the state of the
E-Stop
,
Fault
and
Motor Disable
inputs, the Gecko stepper driver “
Error
” signals, and
optionally depending on jumper JP1, the “charge pump” circuit.. See sections 3.5,
and 3.6 for more information. This setting allows the charge pump circuit to
disable external drivers via opto-isolated relays, or can be used to daisy-chain the
PMDX-132 to a PMDX-122 boards (see section 2.4).
Table 15 – “Pin 17 Mode” Jumper Settings (JP2)
5.3
Relay Mode (JP3 and JP4)
These jumpers select whether the PC parallel port signals control the two relays or the relays are not
used. Figure 10 on page 20 shows the location of these jumpers.
Setting
Label
Description
1 to 2
pin 1
Relay controlled from PC parallel port pin 1 (~Strobe status signal)
2 to 3
disable
Relay is not driven (this silences the relay when J9 pin 1 is used as a digital output)
Table 16 – “K1 Relay Mode” Jumper Settings (JP3)
Setting
Label
Description
1 to 2
pin 14
Relay controlled from PC parallel port pin 14 (~AutoFeed status signal)
2 to 3
disable
Relay is not driven (this silences the relay when J9 pin 14 is used as a digital output)
Table 17 – “K2 Relay Mode” Jumper Settings (JP4)
5.4
Gecko Step & Direction Common (JP5, JP6, JP7 and JP8)
These jumpers select the common reference voltage for the step and direction signals to each of the four
Gecko modules. Figure 10 on page 20 shows the location of these jumpers.
Jumper
Gecko
Jumper
Gecko
JP5
Gecko #1
JP7
Gecko #3
JP6
Gecko #2
JP8
Gecko #4
Setting
Label
Description
1 to 2
+5V
+5 volts is the step and direction common reference
2 to 3
GND
Ground is the step and direction common reference
Table 18 – “Gecko Step & Direction Common” Jumper Settings (JP5, JP6, JP7, JP8)