10.6.6 Digital Inputs
Programmable digital inputs
XD2.12, XD2.13, XD2.14, XD2.15, XD2.16, XD2.17
Voltage level, logic 0 PNP
Voltage level, logic 1 PNP
Voltage level, logic 0 NPN
(2)
Voltage level, logic 1 NPN
(2)
(Duty cycle) minimum pulse width
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
Terminal number (pulse inputs)
Terminal number (encoder inputs)
(2)
Maximum frequency at terminals XD2.15, XD2.16, XD2.17 (push-
pull driven)
Maximum frequency at terminals XD2.15, XD2.16, XD2.17 (open
collector)
Maximum frequency at terminals XD2.15, XD2.16, XD2.17
See Control Input/Output and Control Data.
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
Repeat accuracy of precise start/stop (terminals XD2.12, XD2.13)
System response time (terminals XD2.12, XD2.13, XD2.14, XD2.15,
XD2.16, XD2.17)
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 / 130R0881150 | Danfoss A/S © 2020.09
Specications
VLT® Refrigeration Drive FC 103
Operating Guide