schmersal PSC1-C-10 Series User Manual

Installation manual
HB-37350-810-01-50F-EN PSC1-C-10 Installation manual V2.1.docx Page 59 of 189
Version: 50F
4.2.2.2 General diagnostic measures for encoder interface
For fault detection in the sensor system, a series of diagnostic measures are implemented in
the PSC1 series depending on the encoder type selected and their combination. The
measures are activated automatically with the selection of the encoder type.
In principle, the diagnostic measures can be classified in relation to their nature and
effectiveness as per the table below:
Diagnostics for sensors for position and/or speed acquisition:
Measure
DC
Comment
Usage
Cross comparison of input
signals with immediate and
intermediate results in the
logic (L) and program
execution monitoring in
relation to timing and logic,
and detection of static
failures and short-circuits
(with multiple inputs/outputs)
99
Only for usage on:
- Dual-channel sensor
systems (2 separate
sensors),
- the dual-channel sub-
system for single-
channel sensors
(incremental encoders)
- Diagnostics for the
single and dual-channel
sub-system comprising
specially suited sensor
systems (SIN/COS
encoders) Dynamic
operation / no standstill
monitoring
Monitoring of 2-channel
sensor systems and the
related sub-system in
sensors for dynamic
operation
Not to be used for
standstill monitoring!
Cross monitoring of input
signals without dynamic test
80-
95%
DC is dependent on the
frequency of the dynamic
state, i.e. standstill or
movement and on the
quality of the monitoring
measure
(80 - 90% for incremental
encoders, 95% for
SIN/COS encoders)
Monitoring of dual-
channel sensor systems
and the related sub-
system comprising
sensors for non-dynamic
operation.
To be used in particular
for standstill monitoring!
Monitoring some
characteristics of the sensor
(response time, range of
analog signals, e.g. electrical
resistance, capacitance)
60
Diagnostics of specific
features of sensors, can
only be used for speed
and position sensors
according to section 4.3
Monitoring of the single-
channel sub-system
comprising single-
channel sensor systems

schmersal PSC1-C-10 Series Specifications

General

Brand	schmersal
Model	PSC1-C-10 Series
Category	Control Unit
Language	English