Danfoss VLT FC 102 Operating Instructions Manual page 94

Specifications
Analog inputs
Number of analog inputs
Terminal number
Modes
Mode select
Voltage mode
Voltage level
Input resistance, R
Maximum voltage
Current mode
Current level
Input resistance, R
Maximum 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.
8 8
Illustration 8.9 PELV Isolation of Analog Inputs
Pulse inputs
Programmable pulse inputs
Terminal number pulse
Maximum frequency at terminal, 29 and 33
Maximum frequency at terminal, 29 and 33
Minimum frequency at terminal 29 and 33
Voltage level
Maximum voltage on input
Input resistance, R
Pulse input accuracy (0.1–1 kHz)
Analog output
Number of programmable analog outputs
Terminal number
Current range at analog output
Maximum resistor load to common at analog output
Accuracy on analog output
Resolution on analog output
The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS485 serial communication
Terminal number
Terminal number 61
The RS485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the
supply voltage (PELV).
92
VLT
i
i
+24V
18
37
Functional
isolation
RS485
i
Danfoss A/S © 04/2015 All rights reserved.
®
HVAC Drive FC 102 Low Harmonic Drive
Switch S201 and switch S202, Switch A53 and A54
Switch S201/switch S202 = OFF (U), Switch A53 and A54
Switch S201/switch S202 = ON (I), Switch A53 and A54
PELV isolation
Control
High
voltage
2 on frequency converter
Voltage or current
0–10 V (scaleable)
approximately 10 kΩ
0/4 to 20 mA (scaleable)
approximately 200 Ω
Maximum error 0.5% of full scale
100 Hz (D-frame), 200 Hz
Mains
Motor
DC-Bus
2 on frequency converter
110 kHz (push-pull driven)
5 kHz (open collector)
see chapter 8.3.1 Digital inputs
approximately 4 kΩ
Maximum error: 0.1% of full scale
1 on both frequency converter and active filter
Maximum error: 0.8% of full scale
68 (P,TX+, RX+) and 69 (N,TX-, RX-)
Common for terminals 68 and 69
53 and 54
± 20 V
30 mA
10 bit (+ sign)
29 and 33
4 Hz
28 V DC
42
0/4-20 mA
500 Ω
8 bit
MG16I302