Danfoss 102 Operating Instructions Manual page 83

Specifications
+24V
Control
18
37
Functional
isolation
RS485
Illustration 10.1 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)
only
2)
Pulse inputs are 29 and 33
Analog output
Number of programmable analog outputs
Terminal number
Current range at analog output
Max. load GND - analog output
Accuracy on analog output
Resolution on analog output
The analogue output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS-485 serial communication
Terminal number
Terminal number 61
The RS-485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the
supply voltage (PELV).
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®
VLT HVAC Drive Operating Instructions
PELV isolation
Mains
High
Motor
voltage
DC-Bus
®
MG11AI02 - VLT is a registered Danfoss trademark
1) 2)
29 , 33 / 33
110 kHz (Push-pull driven)
5 kHz (open collector)
4 Hz
see 10.2.1 Digital Inputs
28 V DC
approx. 4 kΩ
Max. error: 0.1% of full scale
Max. error: 0.05 % of full scale
0/4-20 mA
500 Ω
Max. error: 0.5% of full scale
12 bit
68 (P,TX+, RX+), 69 (N,TX-, RX-)
Common for terminals 68 and 69
2/1
3)
10 10
1
42
79