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ABB BCU-12 - Page 30

ABB BCU-12
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As inputs: 24 V logic levels: "0" < 5 V, "1" > 15 V.
R
in
: 2.0 kohm.
Filtering: 1 ms.
Digital inputs/outputs DIO1 and DIO2
(XDIO:1 and XDIO:2)
As outputs: Total output current from +24VD is limited to 200 mAInput/output mode selection by
parameters.
R
L
DIOx
DIOGND
+24VD
DIO1 can be configured as a frequency
input (0…16 kHz with hardware
filtering of 4 microseconds) for 24 V
level square wave signal (sinusoidal or
other wave form cannot be used).
In some control programs, DIO2 can be
configured as a 24 V level square wave
frequency output. Refer to the
firmware manual, parameter group 11.
10 V ±1% and -10 V ±1%,
R
load
1…10 kohmReference voltage for analog inputs
+VREF and -VREF (XAI:1 and XAI:2)
Maximum output current: 10 mA
Current input: -20…20 mA,
R
in
= 100 ohmAnalog inputs AI1 and AI2
(XAI:4 XAI:7).
Voltage input: -10…10 V,
R
in
> 200 kohm
Current/voltage input mode selection
by switches
Differential inputs, common mode range ±30 V
Sampling interval per channel: 0.25 ms
Hardware filtering: 0.25 ms
Resolution: 11 bit + sign bit
Inaccuracy: 1% of full scale range
0…20 mA,
R
load
< 500 ohmAnalog outputs AO1 and AO2 (XAO)
Frequency range: 0…500 Hz
Resolution: 11 bit + sign bit
Inaccuracy: 2% of full scale range
Physical layer: RS-485XD2D connector
Transmission rate: 8 Mbit/s
Cable type: Shielded twisted-pair cable with a twisted pair for
data and a wire or another pair for signal ground (nominal
impedance 100 165 ohm, for example Belden 9842)
Maximum length of link: 50 m (164 ft)
Termination by switch
Physical layer: RS-485RS-485 connection (X485)
Cable type: Shielded twisted-pair cable with a twisted pair for
data and a wire or another pair for signal ground (nominal
impedance 100 165 ohm, for example Belden 9842)
Maximum length of link: 50 m (164 ft)
Input voltage range: -3…30 V DCSafe torque off connection (XSTO)
Logic levels: "0" < 5 V, "1" > 17 V.
Note: Both circuits must be closed to enable start and operation
(IN1 and IN2 must be connected to OUT). This applies to all
control units (including drive, inverter, supply, brake, DC/DC
converter etc. control units), but SIL/PL classified Safe torque
off functionality is only achieved through the XSTO connector
of the drive/inverter control unit.
Current consumption: 66 mA (continuous) per STO channel per
drive/inverter module
EMC (immunity) according to IEC 61326-3-1 and IEC 61800-5-2
To STO connector of inverter module.Safe torque off output (XSTO OUT)
Connector: RJ-45Control panel connection (X13)
Cable length < 100 m (328 ft)
30 Technical data

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