CD Automation srl CD3000E-3PH from 25A to 500A User’s Manual
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12.6 Digital Output
The CD3000E thyristor unit has 2 digital output (1 for size S09) with relay contact (Max 500mA,
125Vac) and 2 digital output with logic NPN 12Vdc (20ma Max).
12.6.1 Configurable Relay (Terminals 11 and 12 not available for size S09)
This digital output can be configured in order to activate itself after that one of these alarms occors:
• SCR in short circuit
• Unbalanced Load
• Heater Break Alarm (HB)
• Low Voltage
The parameter for configurate the output is the P113 (see par. 14.2).
The standard contact used for this output is normally open (NO), but is possible change the contact
type:
Size S11/S13/S14
Type Jumper
NC A-B
NO (standard) B-C
12.6.2 Run Relay (Terminals 13 and 14)
This digital output is used to control the main contactor, when the thyristor unit is in run the output is
active and the contact is closed.
12.6.3 Critical Alarm (Terminal 15)
This digital output is active when a critical alarm occurs (see par. 9.2).
12.6.4 Configurable Relay Digital Output (Terminal 16)
This digital output can be configured in order to activate itself after that one of these alarms occors:
• SCR in short circuit
• Unbalanced Load
• Heater Break Alarm (HB)
• Current Limit active
The parameter for configurate the output is the P112 (see par. 14.2).