Danfoss VLT FC 102 Instruction Manual page 67

Specifications
Analog inputs
Number of analog inputs
Terminal number
Modes
Mode select
Voltage mode
Voltage level
Input resistance, R
i
Max. voltage
Current mode
Current level
Input resistance, R
i
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.
+24V
Control
18
37
Functional
isolation
RS485
Figure 8.1 PELV Isolation
Pulse
Programmable pulse
Terminal number pulse
Max. frequency at terminal 29, 33
Max. frequency at terminal 29, 33
Min. frequency at terminal 29, 33
Voltage level
Maximum voltage on input
Input resistance, R
i
Pulse input accuracy (0.1–1 kHz)
Encoder input accuracy (1–11 kHz)
The pulse and encoder inputs (terminals 29, 32, 33) are galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals.
1)
FC 302 only
2)
Pulse inputs are 29 and 33
®
VLT HVAC Drive Instruction Manual
PELV isolation
Mains
High
Motor
voltage
DC-Bus
MG11AJ22 - Rev. 2013-09-13
53, 54
Voltage or current
Switch S201 and switch S202
Switch S201/switch S202 = OFF (U)
-10 to +10 V (scalable)
approx. 10 kΩ
±20 V
Switch S201/switch S202 = ON (I)
0/4 to 20 mA (scalable)
approx. 200 Ω
30 mA
10 bit (+ sign)
Max. error 0.5% of full scale
20 Hz/100 Hz
1) 2)
29 , 33 / 33
110 kHz (push-pull driven)
5 kHz (open collector)
see 8.6.1 Digital Inputs
28 V DC
approx. 4 kΩ
Max. error: 0.1% of full scale
Max. error: 0.05% of full scale
65
2
8 8
2/1
3)
4 Hz