Delta Tau Universal PMAC Lite, Справочник по аппаратуре

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Universal PMAC Lite
PMAC Lite E-Point Descriptions 20
E17A-D: Amplifier Enable/Direction Polarity Control
E Point and
Physical Layout
Location Description Default
E17A G1 Jump 1-2 for high-true AENA1.
Remove jumper for low-true AENA1. No jumper installed
E17B G1 Jump 1-2 for high-true AENA2.
Remove jumper for low-true AENA2. No jumper installed
E17C G1 Jump 1-2 for high-true AENA3.
Remove jumper for low-true AENA3. No jumper installed
E17D G1 Jump 1-2 for high-true AENA4.
Remove jumper for low-true AENA4. No jumper installed
Note : Low-true enable is the fail-safe option because of the sinking (open-collector) ULN2803A output
driver IC.
E22 - E23: Control Panel Handwheel Enable
E Point and
Physical Layout
Location Description Default
E22 G1 Jump pin 1 to 2 to obtain handwheel
encoder signal from front panel at J2-16
for CHB2 (ENC2-B). No jumper
E23 G1 Jump pin 1 to 2 to obtain handwheel
encoder signal from front panel at J2-22
for CHA2 (ENC2-A). No jumper
Note : With these jumpers ON, no encoder should be wired into ENC2 on JMACH1. Jumper E26 must
connect pins 1-2, because these are single-ended inputs. This function is unrelated to the encoder brought in
through ACC-39 on J2.