46 / 291 - EN -
2.4. Connector features
The control unit is connected to the kiln via a 14-pin connector.
Features:
• CPC 14 connector
• 14-pin screw connection
• Bayonet fitting
The black 14-pin socket provided for this is located on the switch cabinet of the kiln (near the electrical supply line).
CPC 14 kiln socket CPC 14 controller plug
2.5. Plug pin assignment
Pin no. X = Used Description Pin assignment
1 X Thermocouple 1 +
2 X Thermocouple 1 -
3 − Not used
4 − Not used
5 − Not used
6 − Not used
7 X Additional switch output (230 V)
8 X L1 feed 230 V AC
9 X N feed
10 − Not used
11 − Not used
12 X Safety contactor switch output
13 X Neutral conductor switch output
14 X Zone 1 switch output
Note:
• Each switch output can switch a maximum of 250-300 mA at 230 V.
• A relay must be used at these outputs to switch loads.
• The wiring of the mating CPC 14 socket can vary between kiln manufacturers! Non-observance can
result in damage to the controller and kiln.
2.6. Kiln contactor protection circuit
The coil of each kiln contactor should be suppressed with an RC circuit. RC circuits must be connected directly
across the coil terminals on each contactor. ROHDE kilns are delivered this way as standard. For kilns from other
manufacturers, suitable products are available as accessories from contactor manufacturers.
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