Control Power (DC+, DC– and AC1. AC2)

Operating power for the Firing Circuit Chassis is applied to the Control Power inputs. If dc operating power

is used, 125 Vdc should be applied to terminals DC+ and DC–. If ac operating power is used, 120 Vac

should be applied to terminals AC1 and AC2. Both inputs may be used if redundant control power is desired.

Bridge Control Voltage (COM, VC+)

This signal determines the firing control angle of the rectifier bridge SCRs. The Bridge Control Voltage

Input accepts a voltage range of –10 to +10 Vdc. The DECS must be programmed to supply the same

range of control voltage. Refer to Basler publication 9369700990 for information about DECS-400

configuration and Basler publication 9597100990 for information about DECS-450 configuration.