WEG DBW04 Serie Manual Del Usuario página 21

Installation and Connection
DIT (A/B): input for braking resistor thermostat; if not used, install a jumper between XC4:1
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and XC4:2.
RL1 (NO1/C1/NC1): relay that indicates when the module is with fault. In normal operation, it
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closes the contacts NC1 and Common. In fault, it closes the contacts NO1 and Common.
RL2 (NO2/C2/NC2): relay that indicates ground fault. In normal operation, it closes the contacts
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NC2 and Common. In fault, it closes the contacts NO2 and Common.
DI1: can be used as disable general command. Applying a signal of +24 Vdc disables the braking.
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N2: synchronism fiber optic receiver: used to control the braking module when configured
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as slave. For further information, refer to
N3: synchronism fiber optic emitter used to control other DBW04. When the module is
„
configured as slave, it serves as signal repeater.
X1: Auxiliary power supply input for fan (220 Vac / 250 mA), see
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Follow instructions below for the proper installation of the control wiring:
Wire gauge: 0.5 mm² (20 AWG) to 1.5 mm² (14 AWG).
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Maximum tightening torque: 0.5 N.m (4.50 lbf.in).
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If necessary, use shielded cables. The correct connection of the cable shield is showed in
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the Figure 3.9 on page
20 | DBW04
Table 3.4 on page
Figure 3.8: X1 terminal strip
21.
22.
Figure 3.8 on page
X1: fan connector
220 Vac / 250 mA external
20.