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6
Table 6-9
Two-channel with monitoring by two alarm inputs [...]
Error type
Short circuit
Output to 24 V (for version A in
Figure 6-3 on page 6-9)
Output to 24 V (for version B in
Figure 6-3 on page 6-9)
Output to ground
Clock output/alarm input to 24 V
Clock output/alarm input to ground Yes
Table 6-10
Two-channel with monitoring by two alarm inputs; typical parameterization
Parameterization
Assignment
Output
Alarm input IN1
Alarm input IN2
Switch-off delay for stop category 1
Switch-off delay for stop category 1
Value range of switch-off delay for stop category 1 Value in s
Enable
(VersaSafe only)
6-16
Detection Diagnostics Loss of
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Typical parameterization
Parameterized as
Channel 1
Used
Two-channel
Evaluate
Do not evaluate
Enabled
30
Enabled
According to the "Value range of switch-off time" and "Switch-off time" parameters, in this
example, the shutdown time is 20 x 10 ms = 200 ms.
According to the "Value range of switch-off delay for stop category 1" and "Switch-off delay
for stop category 1" parameters, in this example, the switch-off delay is 30 x 1 s = 30 s.
6.5.3
External monitoring
Assigning no alarm input to an output is also permitted. The module does not interpret this
as an error. In this case, monitor the switching state via the application or the control
program and respond appropriately to any errors, if required.
User manual IC220SDL840 - May 2018
Remark
SF
No
Prevent this error, e.g., through protected cable installation.
Yes
Prevent this error, e.g., through protected cable installation.
No
Protect the output against damage using a preconnected fuse.
No
The error is detected by clocking or by the plausibility check.
No
The error is detected by clocking or by the plausibility check.
Channel 2
Used
Two-channel
Do not evaluate
Evaluate
Enabled
30
Value in s
Enabled
Remark
Or do not evaluate/evaluate
Or evaluate/do not evaluate
Or disabled
Application-specific
Application-specific
Or disabled
GFK-2734
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