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7 Option Fan
In this DB unit, the braking time and duty factor can be rise by using option fans.
Standard specification When using option fans
Braking time
10s 30s
Duty factor 10%ED 30%ED
(Refer to Chapter 6 DB unit standard specifications, ∗1 and ∗2)
7-1 Specification
Type BU-F
Mass 230g
Ambient temperature
−10°C to +50°C
7-2 Attachment
7-2-1 Attachment (Fig. 7-2-1)
① Fix a fan unit on the upper part of the UB unit with fixing screws for the fan unit (at 2 positions).
(The fixing screws for the fan unit are attached on the upper part of the fan unit.)
② Since the wiring hole is closed, open the hole so that the cable can pass through.
Optional Fan unit
Cables
Top cover
Fixing screws
Inlet hole
Fig. 7-2-1 Attaching the option fan unit
7-2-2 Wiring (Fig. 7-2-2)
① Pull in power supply connectors for the fans with cables through the wiring hole on the upper part
of the UB unit.
② Connect the power supply connectors for the fans to connectors CN5 and CN6 on the control PCB.
③ Secure the cable to a cable-tie holders at near the wiring hole and left lower part of the control PCB
using cable-ties (e.g. insulock).
The cable-tie must not exceed 3.5 mm or less in width and 1.5mm or less in thickness to pass
through a rectangular hole (3.8×1.5).
Cable-tie
Power s upply C onnectors
(CN5, CN6)
Cable-tie holder
Cable-tie
Cable-tie holder
Cables
Cables
Fig. 7-2-2 Wiring of the option fans
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