Digital inputs:
Programmable digital inputs 4 (6)
Terminal number 18, 19, 27
1)
, 29
1)
, 32, 33,
Logic PNP or NPN
Voltage level 0–24 V DC
Voltage level, logic'0' PNP < 5 V DC
Voltage level, logic'1' PNP > 10 V DC
Voltage level, logic '0' NPN > 19 V DC
Voltage level, logic '1' NPN < 14 V DC
Maximum voltage on input 28 V DC
Input resistance, R
i
approx. 4 k
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.
Digital output:
Programmable digital/pulse outputs 2
Terminal number 27, 29
1)
Voltage level at digital/frequency output 0–24 V
Max. output current (sink or source) 40 mA
Max. load at frequency output 1 kΩ
Max. capacitive load at frequency output 10 nF
Minimum output frequency at frequency output 0 Hz
Maximum output frequency at frequency output 32 kHz
Accuracy of frequency output Max. error: 0.1% of full scale
Resolution of frequency outputs 12 bit
1) Terminal 27 and 29 can also be programmed as input.
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Pulse inputs:
Programmable pulse inputs 2
Terminal number pulse 29, 33
Max. frequency at terminal, 29, 33 110 kHz (push-pull driven)
Max. frequency at terminal, 29, 33 5 kHz (open collector)
Min. frequency at terminal 29, 33 4 Hz
Voltage level see section on Digital input
Maximum voltage on input 28 V DC
Input resistance, R
i
approx. 4 kΩ
Pulse input accuracy (0.1-1 kHz) Max. error: 0.1% of full scale
Control card, 24 V DC output:
Terminal number 12, 13
Max. load : 200 mA
The 24 V DC supply is galvanically isolated from the supply voltage (PELV), but has the same potential as the analog and digital inputs and outputs.
Relay outputs:
Programmable relay outputs 2
Relay 01 Terminal number 1-3 (break), 1-2 (make)
Max. terminal load (AC-1)
1)
on 1-3 (NC), 1-2 (NO) (Resistive load) 240 V AC, 2 A
Max. terminal load (AC-15)
1)
(Inductive load @ cosφ 0.4) 240 V AC, 0.2 A
Max. terminal load (DC-1)
1)
on 1-2 (NO), 1-3 (NC) (Resistive load) 60 V DC, 1A
Max. terminal load (DC-13)
1)
(Inductive load) 24 V DC, 0.1A
Relay 02 Terminal number 4-6 (break), 4-5 (make)
Max. terminal load (AC-1)
1)
on 4-5 (NO) (Resistive load)
2)3)
400 V AC, 2 A
Max. terminal load (AC-15)
1)
on 4-5 (NO) (Inductive load @ cosφ 0.4) 240 V AC, 0.2 A
3 VLT AQUA Selection VLT
®
AQUA Drive Design Guide
3-16
MG.20.N5.22 - VLT
®
is a registered Danfoss trademark
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