5
4. The rear cover terminal and wiring diagram
4.1 Functions of the rear cover terminal
SC-3000M controller adopts 555X model 2*1 pin、2*3(2*2) pin、2*7 pin and 2*8 pin socket connector, whose
number has the same meaning with the number of terminal circuit board, Those with the same number belong to
the same circuit, see figure 2 of appendix.
4.2 External wiring
Figure 3 is the reference diagram of controller external wiring.
Descriptions:
(1) Allowable wave range of the power-line voltage connected with the machine: 176V~240V for single phase,
305V~415V for three phases; voltage exceeding this rage will affect the controller's performance, even damage
the controller.
(2) Wiring plan for controller and inverter:
[Plan 1] The controller controls the rotating speed of the machine: controller terminal 42 and 43 output adjustable
constant voltage source and adjust the inverter frequency to change the rotating speed of the machine; Terminal
45, 46 are respectively connected to inverter FWD (Positive rotation), COM to control the rotate/stop of the
controller(no need to use terminal 44);Terminal 27 and 30 are connected with normally open contact of inverter
abnormal relay, in order to stop and cut off the power supply to the inverter when the inverter become abnormal.
[Plan 2] The inverter directly control the rotating speed of the machine: the controller port 44,45 and 46 are
respectively connected with inverter control terminals, jogging, positive rotation and COM of the inverter
operational control end. If the inverter needs to stop and be protected when there is an abnormal situation, it may
connect with terminal 27 and 30. In this plan, the speed regulation and jog speed setting provided by the
controller don't work.
Attention:
Solution 2 is simple, the rotating speed of the machine is offered by inverter directly (including normal speed,
jogging speed and last ring low speed), So the rotating speed adjustment, jogging speed setting and adjustment
of the controller are disabled. Therefore, we suggest use solution 1.
(3) The default power supply for yarn feeder, 3-color lamp, pin drive and oil drive is AC 12V supply (the internal
jumper could be 24V according to the costumer's demand); the default power supply for pumps is AC 220V
supply (the internal jumper could be 24V according to the costumer's demand).
(4) Counter and exit input signal are NPN type.
(5) Output terminal 11 can be selected from either of the three options: Scutcher, gas supply, headlight by
parameter setting.
