SIEMENS
6/98
Siemens IC 10 · 2017
* You can order this quantity or a multiple thereof.
Illustrations are approximate
Solid-State Switching Devices for Resistive/Inductive Loads
Function Modules
SIRIUS heating current monitoring for 3RF2
6
■
Overview
Heating current monitoring for 3RF2 single-phase
solid-state switching devices
Many faults can be quickly detected by monitoring a load circuit
connected to the solid-state switching device, as made possible
with this module. Examples include the failure of up to six load
elements, alloyed power semiconductors, a lack of voltage, or a
break in the load circuit. A fault is indicated by LEDs and
reported to the controller via relay output (NC).
The principle of operation is based on permanent monitoring of
the current intensity. This figure is continuously compared with
the reference value stored once during start up. In order to
detect the failure of one of several loads, the current difference
must be 1/6 of the reference value. In the event of a fault, an
output is actuated and the LEDs indicate the fault.
The heating current monitoring has a teach input and therefore
differs from the load monitoring. This remote teaching function
enables simple adjustment to changing loads without manual
intervention.
Special version:
Deviations from the standard version
3RF29..-0JA1.-1KK0
If the current is below 50 % of the lower teach current during the
teach routine, the device will go into "Standby" mode; the LOAD
LED will flicker. The device thus detects a non-connected load,
e.g. channels not required for tool heaters, and does not signal
a fault. This mode can be reset by re-teaching.
■
Application
The device is used for monitoring one or more loads (partial
loads). The function module can only be used in conjunction with
a 3RF21 solid-state relay or a 3RF23 solid-state contactor. The
devices with spring-type connections in the load circuit are not
suitable.
■
Selection and ordering data
1)
Supplied without control connector. The control connector can be
purchased from Phoenix Contact by quoting Article No. 1982 790
(2.5 HC/6-ST-5.08).
■
Accessories
Rated operational current
I
e
Rated operational voltage
U
e
SD
Screw terminals
PU
(UNIT,
SET, M)
PS*
PG
A
V
d
Article No.
Price
per PU
Heating current monitoring
1)
3RF2932-0JA13
Rated control supply voltage 24 V AC/DC
16
110 ... 230
2
3RF2916-0JA13
1
1 unit
41C
16
110 ... 230
5
3RF2916-0JA13-1KK0
1
1 unit
41C
16
400 … 600
2
3RF2916-0JA16-1KK0
1
1 unit
41C
32
110 ... 230
2
3RF2932-0JA13-1KK0
1
1 unit
41C
32
400 … 600
2
3RF2932-0JA16
1
1 unit
41C
32
400 … 600
2
3RF2932-0JA16-1KK0
1
1 unit
41C
Version
SD
Article No.
Price
per PU
PU
(UNIT,
SET, M)
PS*
PG
d
Optional accessories
3RF2900-0RA88
Sealable covers
for function modules
(not for converters)
5
3RF2900-0RA88
1
10 units
41C
© Siemens AG 2016