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ifm Programming Manual ecomatmobile BasicController (CR0403) Runtime System V03.02 2015-04-01
Configurations Function configuration of the inputs and outputs
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PWM outputs
14705
The following operating modes are possible for the device outputs (→ data sheet):
• PWM output, plus switching (BH) without diagnostic function
15451
Qn = pin output n
(L) = load
Basic circuit of binary output plus switching (BH)
for positive output signal
15414
WARNING
Property damage or bodily injury possible due to malfunctions!
For outputs in PWM mode:
• there are no diagnostic functions
• the overload protection OUT_OVERLOAD_PROTECTION is NOT active
9980
NOTE
PWM outputs must NOT be operated in parallel, e.g. in order to increase the max. output current. The
outputs do not operate synchronously.
Otherwise the entire load current could flow through only one output. The current measurement would
no longer function.
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Availability of PWM
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Device
Number of available
PWM outputs
of which current-
controlled (PWMi)
PWM frequency
[Hz]
BasicController: CR0403 12 2 20...250
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FBs for PWM functions
14718
The following function blocks are available for the PWM function of the outputs:
CURRENT_CONTROL (→ page 178) Current controller for a PWMi output channel
PWM1000 (→ page 182) Initialises and configures a PWM-capable output channel
the mark-to-space ratio can be indicated in steps of 1 ‰
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Current control with PWM (= PWMi)
14722
Current measurement of the coil current can be carried out via the current measurement channels
integrated in the controller. This way, the current can for example be re-adjusted if the coil heats up.
The hydraulic conditions in the system are maintained.
In principle, the current-controlled outputs are protected against short circuit.
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