Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 127 of 201
Version: 25F
Attention:
The encoder connections are not allowed to be connected or disconnected in operation.
Electrical components on the encoder may be irreparably damaged.
Disconnect the connected encoders and the PSC1 module from the electrical supply before
connecting or disconnecting the encoder connections. For externally supplied encoders, pay
attention to shutting down the external supply voltage (e.g. converter)
Twisted pairs according to the RS485 standard must be used for signal transmission for the
data and clock signals or track A and track B. On the selection of the wire cross-section the
current consumption of the encoder and the cable length in the installation in the specific case
are to be taken into account.
On the usage of absolute encoders, the following also applies:
In the slave mode, the clock signal is generated by an external process and is read with the
data signal from the PSC1 module. Due to this type of sampling there is a beat and as a
consequence a sampling error of the following order of magnitude:
F = (encoder sampling time, external system [ms] / 8 [ms] ) * 100 %
The magnitude of the sampling error produced F must be taken into account on defining the
thresholds on the monitoring functions used, as this error cannot be compensated!
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