The Allen-Bradley 22C-B024H103 is a PowerFlex 400 AC adjustable-frequency drive rated 5.5 kW (7.5 HP) at 24 A, with a 200…240V AC 3-phase input. As plants moved from fixed-speed fan and pump operation to variable-frequency control, the engineering focus shifted from simple on/off switching to precise, repeatable speed regulation across the entire process range.
That evolution demanded drives that could hold accuracy under real electrical conditions. The 22C-B024H103 answers with a sinusoidal PWM Volts/Hertz control method, 0…320 Hz programmable output frequency, and 97.5 % efficiency at rated amps and nominal line voltage.
Key technical specifications of This unit drive
- Input voltage: 200…240V AC, 3-phase, with ±10 % tolerance and 48…63 Hz input frequency.
- Output current: 24 A continuous at both 45 °C and 50 °C surrounding air; 110 % overload for up to 1 min.
- Isolation: one isolated analog input (–10…+10V or 4…20 mA) and one non-isolated analog input (0…10V or 4…20 mA).
- Power factor: 0.98 displacement across the entire speed range.
- Enclosure: IP20 heatsinkless (plate) mount, NEMA/UL Type Open, Frame C.
- Communications: built-in RS-485 DSI supporting Modbus RTU, Metasys N2 and P1-FLN.
How does This unit handle fan and pump control?
The drive includes a built-in PID control loop, purge input, and auxiliary motor control for up to three auxiliary motors. Consequently, it can manage multi-pump staging without an external controller. Two independently programmable accel and decel times span 0…600 s in 0.1 s increments, allowing precise ramp profiles for high-inertia fans.
DC injection braking is selectable through P037 [Stop Mode] as DC Brake or DC BrakeAuto. The braking time A176 [DC Brake Time] ranges 0.0…99.9 s with 99.9 meaning continuous, while A177 [DC Brake Level] defaults to Drive Rated Amps × 0.05. For dynamic braking, an external chopper is required because no internal transistor is rated.
Integration and communication capabilities
The built-in RS-485 port uses an RJ45 connector with only pins 4 and 5 wired. Modbus RTU function codes 03, 06 and 16 are supported, with Logic Command at register 8192 and Reference at register 8193. Network parameters include C103 [Comm Data Rate] with a 9600 bit/s default and C104 [Comm Node Addr] from 1…247. Termination resistors are required at each end of the daisy-chained cable, and repeaters may be needed beyond 32 nodes.
For other networks, the 22-COMM adapter family provides BACnet MS/TP, ControlNet, DeviceNet, EtherNet/IP, LonWorks and PROFIBUS DP. A 22C-CCC Communication Adapter Cover is required when fitting a 22-COMM adapter to a Frame C drive. Integration note: wiring into these fieldbus networks may require an external gateway or connection module; confirm cable and gateway requirements with AutoDCSTech.
Installation and environmental considerations
Mount the drive vertically with sufficient clearance for fan cooling. The published dimensions for the Frame C plate drive are 260.0 H × 130.0 W × 180.0 D mm, and the plate drive weight is 3.15 kg. The surrounding air temperature must stay within -10…+50 °C for the IP20 open enclosure without derating. Above 1000 m altitude, derate 3 % for every 305 m. The drive must not be installed where the ambient atmosphere contains volatile or corrosive gas, vapors or dust.
Branch short-circuit protection is not provided internally; install input fuses or a circuit breaker. The recommended input fuse rating is 35 A with UL Class J, CC, T or Type BS88 fuses, and the recommended branch-circuit protector is 140M-F8E-C32. For EN 61800-3 compliance, the external EMC line filter 22-RF034-CS is required because the drive is supplied unfiltered.
Contact AutoDCSTech with your exact requirements for precise matching.
Availability & Condition at AutoDCSTech
| Part Number | 22C-B024H103 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
