User Manual

PoKeys user manual
12
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SSR (Solid State Relay) connector
Pin
Type
Function
1
OCSSR
SSR2 output
2
+5V
+5V output (power supply to SSR relay)
3
OCSSR
SSR1 output
The solid state relays should be connected between +5V output and corresponding SSR output pin.
Note: all +5V output pins on the board share the same power supply and the current is distributed to
all loads.
Relays connector
Pin
Type
Function
1
REL
Relay 2 NO
2
REL
Relay 2 common
3
REL
Relay 1 NO
4
REL
Relay 1 common
Galvanically isolated I/Os
This connector contains special I/O signals that are galvanically isolated from the rest of the board.
Signals on pins 2 and 3 should only be referenced to GNDi points (available on pins 1 and 4).
Pin
Type
Label
Function
1
GNDi
GNDi
Isolated ground connection (for use only with signals on this connector)
2
DI5P
SpEr
Spindle error input
3
-
10V
0-10V analog output
4
GNDi
GNDi
Isolated ground connection
5
OCOC
OC4+
Open collector output 4
6
OCOC
OC4-
7
OCOC
OC3+
Open collector output 3
8
OCOC
OC3-
9
OCOC
OC2+
Open collector output 2
10
OCOC
OC2-
11
OCOC
OC1+
Open collector output 1
12
OCOC
OC1-
LCD connector
Pin
Type
Label
Function
1
GND
GND
Ground
2
+5V
+5V
+5V power supply for LCD
3
DIO33
RST
LCD contrast voltage, also used as PoKeys pin 18 with PWM and reset pin
(see Device recovery mode for more details)
4
DIO33
RS
LCD RS signal, also used as PoKeys pin 29
1
5
DIO33
R/W
LCD R/W signal, also used as PoKeys pin 28
6
DIO33
E
LCD Enable signal, also used as PoKeys pin 30
1
1
Digital counter functionality can be enabled for this pin