Connectors

power the voltage of the supplied power is 24v dc due to a protection diode at the input, the 24v that is available on a number of connectors will be a bit lower, please check when connecting 24v devices to that connector if they will operate correctly although the 24v is also available on the box header connectors, it is advisable to use separate wiring for powering 24v devices that exceed 50ma of required current the image below shows the power connector check the polarity of the power connections, damage to the board may occur if the polarity is reversed network the board needs to be connected via a cat5 or cat5e cross cable we advise using properly shielded sf/utp network cables the default ip address is 172 22 2 100 make sure that the pc that the board is connected to is correctly setup and has the correct ip address, make sure there is no ip address conflict rs485 via the rs485 connector external hardware can be connected rs485 is a balanced signal, this decreases susceptibility to interference the protocol that is used is modbus rtu the connector contains four signals name meaning com common b balanced signal b a balanced signal a irq input for external interrupt (currently not used) i/o cnc boxheader connectors these connectors contain all the relevant signals of the board cn1 pin name direction type function electrical spec remarks 1 gnd ground 2 +5v power +5v 3 step1 out digital +5v 4 dir1 out digital +5v 5 enable1 out digital +5v 6 step2 out digital +5v 7 dir2 out digital +5v 8 enable2 out digital +5v 9 step3 out digital +5v 10 dir3 out digital +5v 11 enable3 out digital +5v 12 step4 out digital +5v 13 dir4 out digital +5v 14 enable4 out digital +5v 15 home1 in digital max input voltage 24v 16 home2 in max input voltage 24v 17 home3 in max input voltage 24v 18 home4 in max input voltage 24v 19 gnd ground 20 drvalm in digital drive alarm max input voltage 24v 21 reserved 22 reserved 23 reserved 24 no estop out open collector docid\ qf6pe5wfovvy6cnd0lxt indicates no e stop is active 25 gnd ground 26 +24v power cn2 pin name direction type function electrical spec remarks 1 gnd 2 +5v 5v 3 run in digital run switch max input voltage 5v active low 4 hw a in digital handwheel a input max input voltage 5v 5 pause in digital pause switch max input voltage 5v active low 6 hw b in digital handwheel b input max input voltage 5v 7 an1 in analogue analogue input 1 max input voltage 3 3v 12 bits 8 an2 in analogue analogue input 2 max input voltage 3 3v 12 bits 9 gnd ground 10 avdd power 3 3v 11 ext error in digital extern error max input voltage 24v 12 estop in digital emergency stop 13 spindle x in digital spindle position 14 reserved 15 probe in digital probe/toolsetter 16 reserved 17 toolon out open collector switch tool on (eg spindle) max rating 50v/500ma 18 sysready out open collector system ready max rating 50v/500ma system ready, indicates that system is ready for operation 19 cool1 out open collector coolant1 signal max rating 50v/500ma 20 cool2 out open collector coolant2 signal max rating 50v/500ma 21 chargepump out open collector watchdog signal max rating 50v/500ma pulsed signal 10hz 22 enable oc out open collector drive enable max rating 50v/500ma 23 pwm volt out open collector or analog pwm or 0 10v pwm mode max rating 50v/500ma 0 10v mode max 100ma 24 auxout1 out open collector generic output max rating 50v/500ma 25 gnd ground 26 +24v power 24v