CR720S CR721S
39
ifm electronic gmbh ● Friedrichstraße 1 ● 45128 Essen We reserve the right to make technical alterations without prior notice!
26/11/2020
CR721S / page 9
CR721S (HW version: V1.0.5.x)
ST A and ST B / output characteristics
Control systems
ST A:
OUT0006...0007
OUT0106...0107
OUT0206...0207
ST B:
OUT0306...0307
OUT0406...0407
OUT0506...0507
Switching current
0.025...4 A
Protective circuit for inductive
loads
integrated
Accuracy current feedback
1 % FS
Diagnostics current feedback
configurable minimum and maximum values
to detect short circuit and wire break
Diagnostics status feedback
detection of short circuit to VBB and short
circuit to GND according to programming
manual
detection TRUE: ≥ 3 V
detection FALSE: ≤ 1 V
Digital / PWM outputs
4.0 A, H-bridge
(OUT PWM-40-BRIDGE-A)
Digital output (B
H
)
(default)
Switching voltage
8...32 V DC
Range diagnostics min./max.
0 A / 4 A (default)
Digital output (B
L
)
Functions
as H-bridge
PWM output (PWM
H
)
Output frequency
20...2000 Hz (per channel)
Pulse/pause ratio
1...1000 ‰ (adjustable via software)
Resolution
1 ‰ (at 20...250 Hz)
Range diagnostics min./max.
0 A / 4 A (default)
PWM output (PWM
L
)
Output frequency
20...500 Hz (per channel)
Pulse/pause ratio
1...1000 ‰ (adjustable via software)
Resolution
1 ‰ (at 20...250 Hz)
Current-controlled output (PWM
I
)
Output frequency
20...2000 Hz (per channel)
Control range
0.05...4 A
Setting resolution
1 mA
Control resolution
2 mA
Load resistance
≥ 3 Ω (at 12 V DC)
≥ 6 Ω (at 24 V DC)
Accuracy
± 1.5 % FS (for inductive loads)
Range diagnostics min./max.
0 A / 4 A (default)
GB
