Control Card Performance; Control Characteristics - Danfoss VLT AutomationDrive EZ FC 321 Installation Manual

VLT®AutomationDrive EZ FC 321
Installation Guide
Specifications
Maximum terminal load (DC-1) on 4–6 (NC) (resistive load) 50 V DC, 2 A
(1)
Maximum terminal load (DC-13) on 4–6 (NC) (inductive load) 24 V DC, 0.1 A
(1)
Minimum terminal load on 1–3 (NC), 1–2 (NO), 4–6 (NC), 4–5 (NO) 24 V DC 10 mA, 24 V AC 20 mA
Environment according to EN 60664-1 Overvoltage category III/pollution degree 2
IEC 60947 parts 4 and 5. The relay contacts are galvanically isolated from the rest of the circuit by reinforced isolation (PELV).
1

5.3.12 Control Card Performance

Scan interval 1 ms

5.3.13 Control Characteristics

Resolution of output frequency at 0–590 Hz ±0.003 Hz
Repeat accuracy of precise start/stop (terminals 18, 19) ≤±0.1 ms
System response time (terminals 18, 19, 27, 29, 32, 33) ≤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- 0–6000 RPM: Error ±0.15 RPM
back device
Torque control accuracy (speed feedback) Maximum error ±5% of rated torque
All control characteristics are based on a 4-pole asynchronous motor.
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