Cable Specifications; Cable Lengths And Cross-Sections For Control Cables; Control Input/Output And Control Data; Digital Inputs - Danfoss VLT AutomationDrive FC 301 Operating Manual

VLT® AutomationDrive FC 301/FC 302
Operating Guide

8.5 Cable Specifications

8.5.1 Cable Lengths and Cross-sections for Control Cables

Maximum motor cable length, shielded
Maximum motor cable length, unshielded
Maximum cross-section to control terminals, flexible/rigid wire
without cable end sleeves
Maximum cross-section to control terminals, flexible wire with ca-
ble end sleeves
Maximum cross-section to control terminals, flexible wire with ca-
ble end sleeves with collar
Minimum cross-section to control terminals
For power cables, see Table 29
For power cables cross-sections, see

8.6 Control Input/Output and Control Data

8.6.1 Digital Inputs

Programmable digital inputs
Terminal number
Logic
Voltage level
Voltage level, logic 0 PNP
Voltage level, logic 1, PNP
Voltage level, logic 0 NPN
(2)
Voltage level, logic 1 NPN
(2)
Maximum voltage on input
Pulse frequency range
(Duty cycle) minimum pulse width
Input resistance, R
i
Terminals 27 and 29 can also be programmed as output.
1
Except STO input terminal 37.
2

8.6.2 STO Terminal 37 (Terminal 37 is Fixed PNP Logic)

Voltage level
Voltage level, logic 0 PNP
Voltage level, logic 1 PNP
Maximum voltage on input
Typical input current at 24 V
Typical input current at 20 V
Input capacitance
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
See 4.7.1 Safe Torque Off (STO)
When using a contactor with a DC coil inside in combination with STO, it is important to make a return way for the current from the
coil when turning it off. This can be done by using a freewheel diode (or, alternatively, a 30 V or 50 V MOV for quicker response time)
across the coil. Typical contactors can be bought with this diode.
72 | Danfoss A/S © 2021.01
to Table 40
8.1.5 Power Cable Cross-sections.
for further information about terminal 37 and Safe Torque Off.
Specifications
FC 301: 50 m (164 ft)/FC 302: 150 m (492 ft)
FC 301: 75 m (246 ft)/FC 302: 300 m (984 ft)
1.5 mm
1 mm
0.5 mm
0.25 mm
FC 301: 4 (5) /FC 302: 4 (6)
(1)
18, 19, 27
Approximately 4 kΩ
AQ267037727118en-000101 / 130R0300
2
/16 AWG
2
/18 AWG
2
/20 AWG
2
/24 AWG
(1)
, 29 , 32, 33
(1) (1)
PNP or NPN
0–24 V DC
<5 V DC
>10 V DC
>19 V DC
<14 V DC
28 V DC
0–110 kHz
4.5 ms
0–24 V DC
<4 V DC
>20 V DC
28 V DC
50 mA rms
60 mA rms
400 nF