UK
SafetyController CR7132
25
7.6 Ex side / output characteristics
ifm electronic gmbh ● Friedrichstraße 1 ● 45128 Essen We reserve the right to make technical alterations without prior notice!
21�08�2017
CR7132 / page 7
CR7132
Ex side / output characteristics
Control systems
Q00_E...Q15_E
Accuracy
± 2 % FS (for inductive loads)
Protective circuit for inductive
loads
Integrated
Diagnosis via current feedback Wire break/overload
Diagnosis via voltage feedback Short circuit
PWM output (PWM)
Output frequency
20���250 Hz (per channel)
Pulse/pause ratio
1���1000 ‰
Resolution
1 ‰
Switching current
8 x 0�01���2 A
8 x 0�01���2 A / 0�02���4 A (4 of these outputs
with H-bridge function)
Digital output (B
H
and B
H/L
)
Switching voltage
8���32 V DC
Switching current
8 x 0�01���2 A
8 x 0�02���4 A (4 of these outputs with
H-bridge function)
Current-controlled output (PWM
I
)
H-bridge (channel pair)
Q01_E / Q03_E
Q09_E / Q11_E
Output frequency
20���250 Hz (per channel)
Control range
8 x 0�01���2 A / 0�02����4 A
8 x 0�01���2 A
Setting resolution
1 mA
Control resolution
1 / 2 mA
Load resistance
≥ 3 Ω (at 12V DC)
≥ 6 Ω (at 24V DC)
Q16_E...Q31_E
Digital output (B
H
)
Switching voltage
8���32 V DC
Switching current
16 x ≤ 2 A
Diagnosis via voltage feedback Wire break/short circuit
Internal relays
NO contacts for the second switch-off way of the outputs�
In series of 8 semiconductor outputs each
Forced control via the hardware
and additional control via the user program�
The relays must always be switched without load!
Switching current
0�1���15 A
Overload current
20 A
Number of operating cycles
(without load)
≥ 10
6
Switching time constant
≤ 3 ms
Load current per output group
(VBB
n
)
≤ 12 A
(for continuous operation ≤ 6 A; i.e. operation ≥ 10 min)
Overload protection
(valid for all outputs)
Max� 5 minutes (at 100% overload)
Short-circuit strength to GND
Switch-off of the outputs is carried out via the output driver
