Service manual
HEC-Series Service Manual
ELECTRICAL CONTROLS & THEIR FUNCTIONS
10/21/01
6-12
NOTE: Part #12A-7536M01000000. PLC must be pre-programmed for specific model.
FIGURE 6-4
PLC Display
Input Description
Output Description
0 Cylinder Ice Bin Stat / Selector Switch
0 Flush Valve (Special Order Only)
1 Crushed Ice Bin Stat / Selector Switch
1 A-valve
2 Freezer Pressure Switch / Manual Harvest
2 Compressor (X-valve / air cooled machine)
3 Start Switch
3 Reversing Relay
4 Clean Switch
4 Water Pump
5 Ice Switch
5 Cutter / D-valve
6 High / Low Pressure Safety Switch
7 Service Indicator Switch
TABLE 6-3
PLC Inputs & Outputs










