Analog inputs
Number of analog inputs
2
Terminal number
53
1)
, 54
Modes
Voltage or current
Mode select
Software
Voltage level
0–10 V
Input resistance, R
i
approximately 10 k
Ω
Maximum voltage
-15 V to +20 V
Current level
0/4 to 20 mA (scaleable)
Input resistance, R
i
approximately 200
Ω
Maximum current
30 mA
Resolution for analog inputs
11 bit
Accuracy of analog inputs
Maximum error 0.5% of full scale
Bandwidth
100 Hz
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) Terminal 53 supports only voltage mode and can also be used as digital input.
Mains
Functional
isolation
PELV isolation
Motor
DC Bus
High
voltage
Control
+24 V
RS-485
18
31
130BD310.10
Figure 9.1 Analog Inputs
Pulse inputs
Programmable pulse inputs
2
Terminal number pulse
29, 33
Maximum frequency at terminal 29, 33
32 kHz (push-pull driven)
Maximum frequency at terminal 29, 33
5 kHz (open collector)
Minimum frequency at terminal 29, 33
4 Hz
Voltage level
See the section on digital input.
Maximum voltage on input
28 V DC
Input resistance, R
i
Approximately 4 k
Ω
Pulse input accuracy (0.1–1 kHz)
Maximum error: 0.1% of full scale
Pulse input accuracy (1–32 kHz)
Maximum error: 0.05% of full scale
Digital outputs
Programmable digital/pulse outputs
1
Terminal number
27
Voltage level at digital/frequency output
0–24 V
Maximum output current (sink or source)
40 mA
Maximum load at frequency output
1 k
Ω
Maximum capacitive load at frequency output
10 nF
Minimum output frequency at frequency output
4 Hz
Maximum output frequency at frequency output
32 kHz
Accuracy of frequency output
Maximum error: 0.1% of full scale
Resolution of frequency output
10 bit
1) Terminal 27 can also be programmed as input.
Specifications
VLT
®
Midi Drive FC 280
52
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MG07A122
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