Sun Pumps PCC-48BLS-M2 - Manual (Page 10)

3.4 Controller Settings
The PCC series controllers have several settings (see figure 4). Most features include system configuration
adjustments, some of which are user selectable by an eight position DIP-switch located on the face of the controller.
Switch 1 is the Remote Switch Logic. With this switch off (down), terminals “RS+” and “GND” must be
disconnected to turn the pump on. With this switch on (up), terminals “RS+” and “GND” must be connected to turn
the pump on.
Switch 2 is the Low Water Cutoff Logic. With this switch off (down), terminals “RS+” and “GND” must be
disconnected to turn the pump on. With this switch on (up), terminals “RS+” and “GND” must be connected to turn
the pump on.
Switches 3 and 4 are Input Voltage Threshold Adjustments. See Table 2 in Input Voltage Threshold Adjustment for
more information.
Switch 7 is used to control the user interface. When switch 7 is down, the LCD will display various screens
conveying pump and controller operating parameters. The display will cycle through each screen at a predetermined
rate. For troubleshooting and some setup features certain screens are desired. By turning the switch number 7 on,
the display will stop cycling and the current screen will stay on the display.
Switches 5 and 6 are not used at this time and should remain down.
Switch 8 is used as a battery protection DISABLE. It is used to bypass the battery protection features shown in
Figure 3 in cases when water must be pumped. Over voltage protection by the controller still functions. In other
words if the input voltage is greater than 64 V, the controller will still not attempt to run the pump. Do not operate
your pump with switch 8 in the on position for extended periods of time. Only use it when it is absolutely
necessary as it can cause the controller to ruin batteries which are connected to it by discharging them too
far. Sun Pumps, Inc. warranty does not cover damages to batteries.
3.5 Auxiliary Control Circuits
The auxiliary control circuits are configured and controlled with the “Dip Switches”, “Speed Control” and the “RS”,
“LW” and “GND” terminals. (See Figure 4)
These circuits offer expanded capability and are described here. The remote switch control is for float switches
(storage tank level), pressure switches or a remote system “ON/OFF” toggle switch. The motor speed control is for
adjusting the flow rate of the pump. There are also the low water cutoff and over current protection circuits. See
each corresponding detailed description below.
NOTE: Use only “Shielded Wire” to run from the remote switch to the controller and the ground wire must
be grounded to the controller side only. Induced voltages from lightning storms or two-way radio transmissions
could damage the controller.
Over-Current Shut Down Circuit
The over-current shut down circuit will turn the controller off any time the current exceeds the current limit of the
controller. When it turns the controller off it will remain off for 3 minutes and then turn on again. When it turns off
an error light will light and the display will say Over-Current under the Sun Pumps Inc. on the first screen. After the
3 minutes, when it turns on again, if it is still pulling excessive current it will continue to shut down for 3 minutes
and try to restart.