POSITAL FRABA Absolute Rotary Encoder Replacement: OCD-C600B-0012-C106 to OCD-CAA1B-0012-C100-CRW Product: Absolute Rotary Encoder Brand / maker: POSITAL FRABA / POSITAL IXARC Original requested model: OCD-C600B-0012-C106 Replacement model offered for checking: OCD-CAA1B-0012-C100-CRW Quantity in inquiry: 1 PC This product note is prepared for maintenance and purchasing teams who need a practical replacement check for a POSITAL FRABA absolute rotary encoder. The customer inquiry requested OCD-C600B-0012-C106 . The supplier information says that the original model is discontinued, and the replacement model proposed for review is OCD-CAA1B-0012-C100-CRW . For an encoder replacement, this model change should not be treated as a simple brand-name substitution. The interface, resolution, shaft, flange, protection class, wiring and mechanical mounting must be confirmed before ordering. POSITAL OCD-CAA1B-0012-C100-CRW datasheet page used for model and specification confirmation. Key Specification of OCD-CAA1B-0012-C100-CRW Item Specification from datasheet Encoder series POSITAL IXARC absolute singleturn encoder Interface CANopen Profile DS-406 Resolution Singleturn 12 bit Sensor technology Optical Supply voltage 10-30 VDC Current consumption up to 230 mA at 10 VDC; up to 100 mA at 24 VDC Power consumption up to 2.5 W Flange Clamp flange, diameter 58 mm Shaft Solid shaft, single flat, length 20 mm Shaft diameter 10 mm Protection class IP65 at shaft; IP66/IP67 at housing Temperature range -30?C fixed / -5?C flexible to +80?C according to the supplied datasheet Connection Radial cable / connector, 1 m cable, PVC, 0.14 mm2 / AWG 26 Maximum speed up to 12,000 rpm Approvals CE + cULus Why the Replacement Needs Careful Checking Absolute encoders are used to report shaft position to a controller. If the electrical protocol, resolution, shaft format or mounting dimensions do not match the original installation, the machine may not read the position correctly or the encoder may not fit mechanically. In this case, both the old model OCD-C600B-0012-C106 and the proposed replacement OCD-CAA1B-0012-C100-CRW should be checked against the machine drawing, old encoder nameplate and PLC or drive configuration. The proposed replacement is a CANopen absolute encoder with DS-406 profile. That point is important because CANopen devices need the correct node ID, baud rate, object dictionary settings and controller configuration. If the existing machine uses a saved parameter file or EDS configuration, the buyer should ask for the replacement encoder configuration file and confirm whether the preset value, rotation direction and resolution can be set to match the original unit. Wiring Points The supplied datasheet lists the main signal colors as: power supply white, GND brown, CAN High yellow, CAN Low pink and CAN GND green. Before replacement, the maintenance engineer should compare these colors with the existing cable and terminal block. Do not rely only on wire colors if the machine has been modified; confirm each terminal against the wiring drawing. Mechanical Confirmation Points The replacement model uses a 58 mm clamp flange and a 10 mm solid shaft. These two values are central to the mechanical fit. The buyer should confirm the old encoder shaft diameter, shaft length, flat position, coupling type, bracket and available cable exit space. The datasheet lists accessory coupling options such as 10-10, 06-10, 10-12 and jaw or bellow type couplings, so it is useful to send photos of the existing coupling together with the encoder nameplate. Recommended Inquiry Checklist When asking for a quotation or replacement confirmation, prepare the following information: Clear photo of the old encoder nameplate showing OCD-C600B-0012-C106 . Full photo of the encoder installation, including shaft coupling and bracket. Machine brand, controller or PLC model, and whether the encoder is used on CANopen. Existing baud rate, node ID and preset / zero position procedure if known. Required resolution and whether singleturn 12 bit is acceptable. Supply voltage, usually 24 VDC in many industrial control panels. Cable length and cable exit direction. Confirmation that OCD-CAA1B-0012-C100-CRW is mechanically and electrically compatible. Procurement Summary POSITAL FRABA OCD-C600B-0012-C106 is an old requested absolute rotary encoder model. The current replacement candidate in this inquiry is OCD-CAA1B-0012-C100-CRW , a POSITAL IXARC absolute singleturn encoder with CANopen DS-406 interface, 12 bit resolution, 58 mm clamp flange, 10 mm solid shaft and 10-30 VDC supply. It is a strong candidate for replacement quotation, but the buyer should verify controller settings, mechanical mounting and wiring before purchase. Source note: This article uses the customer inquiry dated 2026-06-24, supplier replacement information dated 2026-06-26, the POSITAL datasheet attached to the inquiry, and POSITAL public product information for the IXARC absolute encoder family.
