10.6.6 Digital Inputs
Programmable digital inputs
4 (6)
Terminal number
(1)
XD2.12, XD2.13, XD2.14, XD2.15, XD2.16, XD2.17
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
(2)
>19 V DC
Voltage level, logic 1 NPN
(2)
<14 V DC
Maximum voltage on input
28 V DC
Pulse frequency range
0–110 kHz
(Duty cycle) minimum pulse width
4.5 ms
Input resistance, R
i
Approximately 4 kΩ
1
Terminals XD2.14 and XD2.15 can also be programmed as output.
2
Except STO input terminal XD2.19.
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
10.6.7 Pulse/Encoder Inputs
Programmable pulse/encoder inputs
2/1
Terminal number (pulse inputs)
XD2.17
Terminal number (encoder inputs)
(2)
XD2.16, XD2.17
Maximum frequency at terminals XD2.15, XD2.16, XD2.17 (push-
pull driven)
110 kHz
Maximum frequency at terminals XD2.15, XD2.16, XD2.17 (open
collector)
5 kHz
Maximum frequency at terminals XD2.15, XD2.16, XD2.17
4 kHz
Voltage level
See
Control Input/Output and Control Data
.
Maximum voltage on input
28 V DC
Input resistance, R
i
Approximately 4 kΩ
Pulse input accuracy (0.1–1 kHz)
Maximum error: 0.1% of full scale
Encoder input accuracy (1–11 kHz)
Maximum error: 0.05% of full scale
2
Encoder inputs: XD2.16=A, XD2.17=B.
The pulse and encoder inputs (terminals XD2.15, XD2.16, XD2.17) are galvanically isolated from the supply voltage (PELV) and other
high-voltage terminals.
10.6.8 Control Characteristics
Resolution of output frequency at 0–590 Hz
±0.003 Hz
Repeat accuracy of precise start/stop (terminals XD2.12, XD2.13)
≤±0.1 ms
System response time (terminals XD2.12, XD2.13, XD2.14, XD2.15,
XD2.16, XD2.17)
≤2 ms
Speed control range (open loop)
1:100 of synchronous speed
Speed control range (closed loop)
1:1000 of synchronous speed
Speed accuracy (open loop)
30–4000 RPM: Error ±8 RPM
Speed accuracy (closed loop), depending on resolution of feed-
back device
0–6000 RPM: Error ±0.15 RPM
Torque control accuracy (speed feedback)
Maximum error ±5% of rated torque
AQ357954340588en-000201 / 130R0881
150 | Danfoss A/S © 2020.09
Specifications
VLT® Refrigeration Drive FC 103
Operating Guide
Summary of Contents for VLT FC 103
Page 2: ......
