ABB ACS850 series, Firmware Manual

Page: 48 / 260

48 Program features
WARNING! As the thermistor input on the JCU Control Unit is not insulated
according to IEC 60664, the connection of the motor temperature sensor
requires double or reinforced insulation between motor live parts and the
sensor. If the assembly does not fulfil the requirement,
- the I/O board terminals must be protected against contact and must not be
connected to other equipment
or
- the temperature sensor must be isolated from the I/O terminals.
The figure below shows a motor temperature measurement when thermistor input TH
is used.
For encoder interface module FEN-xx connection, see the User’s Manual of the
appropriate encoder interface module.
„
Settings
Parameter group 31 Mot therm prot (page 145 ).
Timers
It is possible to define four different daily or weekly time periods. The time periods can
be used to control four different timers. The on/off statuses of the four timers are
indicated by bits 0…3 of parameter
06.14 Timed func stat , from where the signal can
be connected to any parameter with a bit pointer setting (see page 63 ). In addition, bit
4 of parameter 06.14 is on if any one of the four timers is on.
Motor
T
JCU Control Unit
TH
AGND
10 nF
One PTC or KTY84 sensor
Motor
T
JCU Control Unit
TH
AGND
T T
Three PTC sensors
10 nF