Lenze EVS9332xK - Manual (Page 190)

Commissioning
Basic settings
Motor temperature monitoring with KTY
6
6.5
6.5.7
l
6.5−18 EDSVS9332K EN 8.0−07/2013
6.5.7 Motor temperature monitoring with KTY
ƒ There are two possibilities to connect a KTY resistor:
– At the incremental encoder connection X8 (pins X8/5 and X8/8)
– At the resolver connection X7 (pins X7/8 and X7/9)
ƒ The motor temperature is measured and integrated into the drive
monitoring.
ƒ The KTY resistor is monitored for open and short circuit.
ƒ When using motors equipped with KTY resistors, we recommend
always to activate the KTY input. This prevents the motor from being
destroyed by overheating.
(
Stop!
ƒ The controller can only evaluate one KTY resistor! Do not use
several KTY resistors connected in series or in parallel:
– This would result in an incorrect measurement of the motor
temperature.
– The motors could be destroyed by overheating.
ƒ If several motors are operated on a controller, use thermal
contacts (NC contacts) for monitoring the motor temperature
and connect theses contacts in series.
ƒ To ensure full motor protection, an additional temperature
monitoring with separate evaluation has to be installed.
Description