ABB BALDOR BC155, Installation & Operating Manual, Page: 6 / 16

1-2 MN702
SAFETY NOTICE
Continued
Caution: Do not connect AC power to the Motor terminals A1 and A2. Connecting AC power to these terminals
may damage the control.
Caution: Baldor recommends not to use Grounded Leg Delta transformer power leads that may create ground
loops. Instead, we recommend using a four wire Wye.
Caution: Suitable for use on a circuit capable of delivering not more than 5,000 RMS symmetrical short circuit
amperes listed here at rated voltage.
Caution: Adjusting the current limit above 150% of the motor nameplate rating can cause overheating and
demagnetization of the PM motor.
Caution: Shunt wound motors may be damaged if field windings remain energized for an extended period of
time without armature rotation.
Caution: Adjusting the CL above 150% of motor rating can cause overheating and possibly demagnetization of
some PM motors. Consult motor manufacturer.
Caution: Do not connect switches or relays in series with the armature (A1 and A2). Armature switching can
cause catastrophic failure of motor and/or control.
Caution: To avoid erratic operation do not bundle AC line and motor wires with potentiometer, voltage following,
enable, inhibit or other signal wiring. Use shielded cables on all signal wiring over 12 (30 cm) – the
shield should be grounded on the drive side only.
Caution: Do not set the maximum speed above the rated motor RPM since unstable motor operation may occur.
Receiving
Each control is thoroughly tested at the factory and carefully packaged for shipment.
When you receive your control, there are several things you should do immediately.
1. Observe the condition of the shipping container and report any damage immediately to the
commercial carrier that delivered your control.
2. Verify that the part number you received is the same as the part number listed on your purchase
order.
3. Do not unpack until ready for use.
Table 1-1 Electrical Ratings
Model
Number
Input Volts
(VAC)
Max. Line Current
(Amps RMS)
Armature
(VDC)
Max. Current
(ADC)
Max. Field Current
@ 200/100 VDC
Max Power
HP, (kW)
BC155 208/230 38 180 26 2.5A 5
Table 1-2 Performance Specifications
Parameter Specification Factory Setting
Speed Range (Ratio) 50:1 -
Armature Feedback Load Regulation (0 – Full Load, 50:1 Speed
Range) – % Base Speed
1 -
Tachometer Feedback Load Regulation (0 – Full Load, 50:1 Speed
Range) – % Set Speed
1 -
Line Voltage Regulation (At full load, ±10% Line Variation) % Speed 0.5 -
Control Linearity – % Speed vs Speed Setting 2 -
Acceleration (ACCEL) Trimpot Range – Seconds 1 – 10 3
Deceleration (DECEL) Trimpot Range – Seconds 1 – 10 1
Maximum Speed (MAX) Trimpot Range – % Base Speed 50 – 110 100
Minimum Speed (MIN) Trimpot Range – % Base Speed 0 – 30 0
Current Limit (CL) Trimpot Range – % Full Load 0 – 200 150
IR Compensation (IR) (At Full Load) – Volts 0 – 48 6
Tachometer Feedback Input Volts/1000 RPM – VDC 7 / 50 Set for Arm. Feedback
Maximum Operating Ambient Temperature at Full Load – ºC / ºF 40/104 -