Danfoss VLT AutomationDrive FC 303 Instruction Manual page 87

Specifications
Pulse frequency range
(Duty cycle) Min. pulse width
Input resistance, R
Safe stop Terminal 37
Voltage level
Voltage level, logic'0' PNP
Voltage level, logic'1' PNP
Maximum voltage on input
Nominal input current at 24V
Nominal input current at 20V
Input capacitance
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1)
Terminals 27 and 29 can also be programmed as output.
2) Except safe stop input Terminal 37.
3)
Terminal 37 is only available in FC 302 and FC 301 A1 with Safe Stop. It can only be used as safe stop input. Terminal 37 is
suitable for PL d (ISO13849-1), SIL 2 (IEC 61508) and SILCL 2 (EN 62061) and implements a safe stop function in accordance with
Safe Torque Off (STO, EN 61800-5-2) and Stop Category 0 (EN 60204-1). Terminal 37 and the Safe Stop function are designed in
conformance with EN 60204-1, EN 61800-5-1, EN 61800-2, EN 61800-3, and EN 954-1. For correct and safe use of the safe stop
function, follow the related information and instructions in the Design Guide.
4)
When using a contactor with a DC coil inside and in combination with safe stop, it is important to provide a return path for
the current from the coil when turning it off. This can be done by using a freewheel diode (or, alternatively, a 30 or 50 V MOV for
quicker response time) across the coil. Typical contactors can be bought with this diode.
Analog inputs:
Number of analog inputs
Terminal number
10 10 Modes
Mode select
Voltage mode
Voltage level
Input resistance, R
Max. voltage
Current mode
Current level
Input resistance, R
Max. current
Resolution for analog inputs
Accuracy of analog inputs
Bandwidth
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
10-12
VLT
Manual
i
3, 4) (Terminal 37 is fixed PNP logic):
i
i
+24V
18
37
Functional
isolation
RS485
MG.33.AI.22 - VLT
® AutomationDrive Instruction
PELV isolation
Control
High
voltage
®
is a registered Danfoss trademark
Voltage or current
Switch S201 and switch S202
Switch S201/switch S202 = OFF (U)
FC 301: 0–+10/ FC 302: -10–+10 V (scaleable)
Switch S201/switch S202 = ON (I)
0/4 to 20 mA (scaleable)
Max. error 0.5% of full scale
FC 301: 20 Hz/ FC 302: 100 Hz
Mains
Motor
DC-Bus
0–110 kHz
4.5 ms
approx. 4 kΩ
0–24V DC
< 4V DC
>20V DC
28V DC
50mA rms
60mA rms
400nF
2
53, 54
approx. 10 kΩ
± 20 V
approx. 200 Ω
30 mA
10 bit (+ sign)