janitza RCM 202-AB, User Manual And Technical Data

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www.janitza.de RCM 202-AB
RCM 202-AB 7
1 Information about using this user manual
1.1 General information
This user manual is intended exclusively for use by trained specialized electrotech-
nical personnel.
This user manual is a part of the product and makes reference to other devices from
Janitza electronics GmbH. Only the names of the respective device series are spec-
ified, but not all the associated types. Read this user manual before using the device.
Observe all safety requirements and warning notices. Failure to observe the instruc-
tions can lead to personal injury and/or damage to the product.
Keep the user manual through the entire service life of the product so it is available
for all users.
1.2 Abbreviations used
Abbrevia-
tion
Meaning
Modbus Communication protocol based on a master/slave architecture
DW Residual current transformer
H Hysteresis
I
Δ
Residual current
k S1 (transformer connection)
l S2 (transformer connection)
oAS Upper alarm threshold
oWS Upper warning threshold
t Time
t
v
Delay time for warning and alarm message
t
vr
Reset delay time for warning and alarm message
1.3 Notes on terminology
Work steps and processes are illustrated as follows:
“1. …”, even if there is only one work step, this format is used.
The standards indicated in the continuous text are written in abbreviated form, and
the complete designation can be found in chapter 19.1, from page 62.