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Proton Products SL mini and SLR mini Series Speed and Length Gauges Instruction Manual - issue 1s
S
CREW TERMINALS
Connector type: Screw terminals
Functional
group
Screw
terminal*
Designation
Description
Notes
Logic
inputs
3
LIN1
Logic input 1
Low < +3V; High > +10.5V; Max
±30V
User configurable function.
4
LIN2
Logic input 2
5
LIN3
Logic input 3
Logic
outputs
6
LOP1
Logic output 1
Floating or pull-down; user
configurable function.
7
LOP2
Logic output 2
CANbus
8
CAN H
CANbus high
For connection to Proton
Products accessories.
9
CAN L
CANbus low
Laser
safety
12
SHUT_ST
Shutter status
Pulled down to DGND when the
shutter is open.
13
/SHUT_EN
Shutter control
Pull down to DGND to open the
laser shutter.
14
/LSR_EN
Laser enable
Pull down to DGND to enable the
laser diode.
RS-232
16
RXD
RS-232 receive
17
TXD
RS-232 transmit
Pulse
outputs
1
POUT +V
Pulse output external
power supply
If no external power supply is
connected, then the pulse
outputs default to the internal
+5V supply.
18
P1A
Pulse output 1
RS-422 compliant differential pair
outputs. Pulse outputs 1 and 2
may be user-configured for
independent or quadrature
operation.
19
/P1A
Inverted pulse output 1
20
P2A
Pulse output 2
21
/P2A
Inverted pulse output 2
25
+24V
Power supply
Operating voltage: 15 to 28VDC
Power consumption: 15W
2
DGND
Power supply and
signal ground
reference
15
DGND
24
DGND
Shield
S
Shield
Shield
Connect to cable and plug
shields
Key-switch
26
KEY SW
Laser enable key-
switch
This terminal is connected via
the key-switch to DGND. A
removable jumper connects this
terminal to the /LSR_EN (14)
terminal.
* screw terminal numbering corresponds to the pin numbering for the DB25 INTERFACE connector
on the gauge.