78
Unidrive M Modular Installation Guide
Issue Number: 2
Precision reference Analog input 1
5
Non-inverting input
6
Inverting input
Default function
Frequency/speed reference
Type of input
Bipolar differential analog voltage or
current, thermistor input
Mode controlled by:
Pr
07.007
Operating in Voltage mode
Full scale voltage range
±10 V ±2 %
Maximum offset
±10 mV
Absolute maximum
voltage range
±36 V relative to 0 V
Working common mode voltage
range
±13 V relative to 0 V
Input resistance
≥
100 k
Ω
Monotonic
Yes (including 0 V)
Dead band
None (including 0 V)
Jumps
None (including 0 V)
Maximum offset
20 mV
Maximum non linearity
0.3% of input
Maximum gain asymmetry
0.5 %
Input filter bandwidth single pole
~3 kHz
Operating in current mode
Current ranges
0 to 20 mA ±5 %, 20 to 0 mA ±5 %,
4 to 20 mA ±5 %, 20 to 4 mA ±5 %
Maximum offset
250
μ
A
Absolute maximum voltage
(reverse biased)
±36 V relative to 0 V
Equivalent input resistance
≤
300
Ω
Absolute maximum current
±30 mA
Operating in thermistor input mode (in conjunction with analog input 3)
Internal pull-up voltage
2.5 V
Trip threshold resistance
User defined in Pr
07.048
Short-circuit detection resistance
50
Ω
± 40 %
Common to all modes
Resolution
12 bits (11 bits plus sign)
Sample / update period
250 µs with destinations Pr
01.036
,
Pr
01.037
, Pr
03.022
or Pr
04.008
in
RFC-A and RFC-S modes. 4 ms for open
loop mode and all other destinations in
RFC-A or RFC-S modes.
7
Analog input 2
Default function
Frequency / speed reference
Type of input
Bipolar single-ended analog voltage or
unipolar current
Mode controlled by...
Pr
07.011
Operating in voltage mode
Full scale voltage range
±10 V ±2 %
Maximum offset
±10 mV
Absolute maximum voltage range
±36 V relative to 0 V
Input resistance
≥
100 k
Ω
Operating in current mode
Current ranges
0 to 20 mA ±5 %, 20 to 0 mA ±5 %,
4 to 20 mA ±5 %, 20 to 4 mA ±5 %
Maximum offset
250
μ
A
Absolute maximum voltage
(reverse bias)
±36 V relative to 0V
Absolute maximum current
±30 mA
Equivalent input resistance
≤
300
Ω
Common to all modes
Resolution
12 bits (11 bits plus sign)
Sample / update
250 µs with destinations Pr
01.036
,
Pr
01.037
or Pr
03.022,
Pr
04.008
in RFC-A
or RFC-S. 4ms for open loop mode and all
other destinations in RFC-A or RFC-S
mode.
8
Analog input 3
Default function
Thermistor input
Type of input
Bipolar single-ended analog voltage, or
thermistor input
Mode controlled by...
Pr
07.015
Operating in Voltage mode (default)
Voltage range
±10 V ±2 %
Maximum offset
±10 mV
Absolute maximum voltage range
±36 V relative to 0 V
Input resistance
≥
100 k
Ω
Operating in thermistor input mode
Supported thermistor types
Din 4408, KTY 84, PT100, PT 1000,
PT 2000
Internal pull-up voltage
2.5 V
Trip threshold resistance
User defined in Pr
07.048
Reset resistance
User defined in Pr
07.048
Short-circuit detection resistance
50
Ω
± 40 %
Common to all modes
Resolution
12 bits (11 bits plus sign)
Sample / update period
4 ms
Содержание 09201760D
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