Installation, Operation and Maintenance Manual
21
7.11. P17 Function of Input I1 (terminals 26-28)
These terminals allow an external volt free contact to be used to signal an input to the TCB.
The contact should be a normally closed contact, so an input signal is generated when the contact
opens.
(These terminals are supplied bridged).
Parameter
value
Display Description
0
INPUT_FUNCT_I1__
P17_0__NO_FUNCT
Input I1 or I2 has no function
1
INPUT_FUNCT_I1__
P17_1__ALARM.
When contact opens on Input, The system will give an Alarm
message
2
INPUT_FUNCT_I1__
P17_2_EXT_CLEA_1
When contact opens on Input, cleaning is activated with interval
1. Cleaning will be activated until the contact is closed
3
INPUT_FUNCT_I1__
P17_3_EXT_CLEA_2
When contact opens on Input, cleaning is activated with interval
2. Cleaning will be activated until the contact is closed
4
INPUT_FUNCT_I1__
P17_4_STOP_CLEAN
When contact opens on Input, cleaning remains active until a full
cleaning cycle is completed. When the contact closes again the
cleaning will not start again based on this input.
5
INPUT_FUNCT_I1__
P17_5_URG_CLE_ST
When contact opens on Input, Cleaning stops immediately and
the valve number of the last activated valve is stored. When the
contact closes again the cleaning will not start again based on
this input.
6
INPUT_FUNCT_I1__
P17_6_STOP_ALL_
When contact opens on Input, Fan and Cleaning stops
immediately, the valve number of the last activated valve is
stored. When the contact closes again the fan will restart again
but the cleaning will not start again based on this input.
7
INPUT_FUNCT_I1__
P17_7_EMERG_STOP
When contact opens on Input, Fan and Cleaning stops
immediately, the valve number of the last activated valve is
stored. The system will also generate an Alarm message. When
the contact closes again the fan will NOT restart again and also
the cleaning will NOT start again based on this input.
8
INPUT_FUNCT_I1__
P17_8_CONF_AL_O1
When contact opens on Input I1, the Alarm messages of Output
O1 is cleared/confirmed
9
INPUT_FUNCT_I1__
P17_9_CONF_AL_O2
When contact opens on Input I2, the Alarm messages of Optional
Output O2 is cleared/confirmed
When the cleaning stops using input signal option 4, 5, 6 or 7, it will not restart when the input
contact closes again, but only when the differential pressure measurement or a different input
signal causes a restart.
Input functions 2 – 6 and 7 & 8 are not available when the TCB is used to operate several fans
in ECB mode.
7.12. P18 Function of Input I2 (terminals 27-28)
These terminals provide the facility for a second programmable input. Setting options and function as
for I1 - See chapter 7.11.
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