DC Drives

Chassis mount SCR controls have a free-wheeling diode and feature adjustable accel, decal, current limit, IR comp, min and max speed pots to match applications. The anti-demag features protects PM motors and helps protect the SCR power bridge against direct shorts. The controls have UL and cUL component recognition. Product Overview: Chassis SCR Control Dual Voltage Optional Heatsink – BC143 Heatsink kit is available to increase the drives capabilities to handle a higher output power rating. If the BC143 heatsink is added, the unit will be able to handle up to 1.5 HP at 90 VDC or 3 HP at ...

Features BC154, BCWD140 and BC160 are non-regen controls with reversal by means of switching the armature leads (BCWD140 has a forward/brake/ reverse switch mounted). BC254 is a line regenerative SCR control that can drive the motor to a timed stop. BC354 is a PWM control that provides lowripple DC power to the motor allowing more Hp when used with a 130 or 260 VDC motor. All offer a choice of armature or tachometer feedback and a speed or torque mode. No Hp resistors are needed for these controls, current is jumper selectable. BC154, BC160, BC254 and BC354 are painted black and come with ...

These are General Purpose drives designed for use with Permanent Magnet or Shunt wound DC motors. NEMA 1 enclosed drives are suitable for most industrial applications. The NEMA 4X controls are best suited for washdown or outdoor installations or for extremely dusty applications. Chassis only drives are available for building into equipment, machinery or existing enclosures. Most controls have a dual voltage switch allowing the control to be used with either 115 volt or 230 volt, single-phase, input power at either 50 or 60 Hz service. It is important that the proper voltage motor be ...

Regen controls are designed to easily operate the motor in forward and reverse directions without motor lead reversal. A separate set of SCRs is used for each direction. With a regen control, stopping is controlled by using the motor's regenerated voltage sent back to the AC line. Features Field power supply allows use with shunt wound DC motors as well as permanent magnet motors Adjustable accel, decel, current limit, IR comp, min and max speed Current limit indicating LED 5K speed pot for speed control Anti-demag circuit protects PM motors and helps protect the SCR power bridge against ...

Baldor-Reliance DC Control, DC SCR REGEN CONTROL, 115/230V, 1/8-2 HP, CHASSIS Features: Field power supply allows use with shunt wound DC motors as well as permanent magnet motors Adjustable accel, decel, current limit, IR comp, min and max speed Current limit indicating LED 5K speed pot for speed control Anti-demag circuit protects PM motors and helps protect the SCR power bridge against direct shorts Noise rejection circuit eliminates false starts and blown SCR's UL and cUL recognized Typical Applications: Conveyors, mixers, packaging machinery and other applications requiring variable ...