Alarms And Faults; Meaning Of The Leds - M&C CSS Series Instruction Manual

LA-Reset = (x = reset necessary, ----- = no reset necessary)
Notice
If a thermocouple type is set, on warming up, an internal check is made whether a heating rate of +3 °C
[+5.4 °F]/minute is being reached. If this is not the case, a cable break in the temperature sensor or a
thermocouple not connected are assumed. The heating is turned off and the display shows "Thermal
Error: 2 (and/or 3) ". The error can only be corrected by removing the cause and switching on again.
17

ALARMS AND FAULTS

In the event of warnings, or errors, plain text information appears on the screen and simultaneously via
the LEDs on the controller front, as well as alarms via the group alarm connection (Part No. 01G6170)
or alarms and warnings via the individual alarm connector (Part No. 01G6175) (see 12.4.1. and 12.4.2).
In front of the plaintext information, is the serial number of the error message and the total number of
messages is specified, e.g. 1/3 ... = Error message 1 of 3.
Depending on the alarm and TCU configuration, an alarm can result in further alarms and warnings:
E.g. the liquid alarm (LA-Alarm: 1,2) can trigger the pump alarm (Pump-Warn: 1,2) and that in turn can
trigger the flow alarm (FA-Warn.: 1,2).
The comm. error (e.g. interrupted connection cable RJ45) causes temperature sensor range exceeded
(T > max.: 2,3) and flushing pressure alarm (flushing pressure not present!) as temperature sensors and
pressure sensors are connected to the communication module. From this follows the temperature alarm
(Hightemp.: 2.3), then the pump alarm (Pump-Warn: 1, 2) (with the appropriate TCU configuration and
then as a result the flow alarm FA-Warn.: 1,2).
17.1

MEANING OF THE LEDS

Green LED: Coolant temperature within the setpoint range, there are no faults
Yellow LED: Flow alarm, low temperature of temperature controller modules and/or service time
reached or exceeded. Also message via individual alarm connection (see Section
12.4.2). In addition, device temperature < 1 °C [< 33.8 °F] or > 50° C [> 122 °F], flushing
pressure absent or internal error requiring the device to be returned.
Red LED: Temperature > 8 °C [> 46.4 °F] or < 2 °C [< 35.6 °F], and/or humidity alarm and/or
breakage of the cable of the liquid sensor and/or high temperature alarm Temperature
controller module at +10 ° C. to Tset. Message also via group alarm connection (see
Section 12.4.1), or via individual alarm connection (see Section 12.4.2). In addition, short
circuit and cable break of a temperature sensor, and "Thermal Error" if during heating on
channel 2 and/or 3, the temperature does not increase
40
A thermocouple type must be set only when the temperature control module
is connected in conjunction with equipment which do not use a PT100 as a
temperature sensor.
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