CR720S CR721S
26
ifm electronic gmbh ● Friedrichstraße 1 ● 45128 Essen We reserve the right to make technical alterations without prior notice!
26/11/2020
CR720S / page 11
CR720S (HW version: V1.0.5.x)
ST A and ST B / output characteristics
Control systems
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 / 2.5 A (default)
Current-controlled output (PWM
I
)
Output frequency
20...2000 Hz (per channel)
Control range
0.05...2.5 A
Setting resolution
1 mA (at 20...250 Hz)
Control resolution
2 mA
Load resistance
≥ 4.8 Ω / (at 12 V DC)
≥ 9.6 Ω / (at 24 V DC)
Accuracy
± 1.5 % FS (for inductive loads)
Range diagnostics min./max.
0 A / 2.5 A (default)
ST A:
OUT0001
OUT0003
OUT0005
OUT0101
OUT0103
OUT0105
OUT0201
OUT0203
OUT0205
ST B:
OUT0301
OUT0303
OUT0305
Switching voltage
8...32 V DC
Switching current
0.025...2.5 A
Protective circuit for inductive
loads
integrated
Accuracy current feedback
5 % 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
detection TRUE: ≥ 3 V
detection FALSE: ≤ 1 V
Digital outputs 2.5 A
(OUT PWM-25-B)
Digital output (B
H
)
(default)
Range diagnostics min./max.
0 A / 2.5 A (default)
PWM output (PWM
H
)
Output frequency
20...2000 Hz (per channel)
Pulse/pause ratio
1...1000 ‰ (adjustable via software)
Resolution
1 ‰ FS (at 20...250 Hz)
Range diagnostics min./max.
0 A / 2.5 A (default)
ST A:
OUT3000
For sensors and joysticks
0 V / 5 V, 400 mA / 10 V, 200 mA, accuracy ± 5 %
Minimum current 10 mA
Short-circuit proof and overload protected
Sensor supply
(OUT SUPPLY-A)
ST A:
OUT3001
ST B:
OUT3002
Current rating
< 5 mA
Output voltage
0...10 V
Accuracy
± 5 % FS
Step response time 10...90 %
< 1.8 ms
Analogue outputs
(OUT VOLTAGE-A)
Output groups VBB
0...3
Load current per output group
≤ 12 A
