Specifications

Cable lengths and cross sections
Max. motor cable length, screened/armoured 150 m
Max. motor cable length, unscreened/unarmoured 300 m
Max. cross section to motor, mains, load sharing, and brake *
Maximum cross section to control terminals, rigid wire 1.5 mm
2
/16 AWG (2 x 0.75 mm
2
)
Maximum cross section to control terminals, flexible cable 1 mm
2
/18AWG
Maximum cross section to control terminals, cable with enclosed core 0.5 mm
2
/20AWG
Minimum cross section to control terminals 0.25 mm
2
* See 8.1 General Specifications for more information.
Control card, RS-485 serial communication
Terminal number 68 (P,TX+, RX+), 69 (N,TX-, RX-)
Terminal number 61 Common for terminals 68 and 69
The RS-485 serial communication circuit is functionally seated from other central circuits and galvanically isolated from the
supply voltage (PELV).
Analogue inputs
Number of analogue inputs 2
Terminal number 53, 54
Modes Voltage or current
Mode select Switch S201 and switch S202
Voltage mode Switch S201/switch S202 = OFF (U)
Voltage level 0 to + 10 V (scaleable)
Input resistance, R
i
approx. 10 kΩ
Max. voltage ± 20 V
Current mode Switch S201/switch S202 = ON (I)
Current level 0/4 to 20 mA (scaleable)
Input resistance, R
i
approx. 200 Ω
Max. current 30 mA
Resolution for analog inputs 10 bit (+ sign)
Accuracy of analog inputs Max. error 0.5% of full scale
Bandwidth 200 Hz
The analogue inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Mains
Functional
isolation
PELV isolation
Motor
DC-Bus
High
voltage
Control
+24V
RS485
18
37
130BA117.10
Illustration 8.1 PELV Isolation of Analogue Inputs
Analogue output
Number of programmable analogue outputs 1
Terminal number 42
Current range at analogue output 0/4-20 mA
Max. resistor load to common at analogue output 500 Ω
Accuracy on analogue output Max. error: 0.8% of full scale
General Specifications and ... VLT® HVAC Drive FC 102 Design Guide
MG16C102 - Rev. 2013-08-20 191
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