BRUSHLESS SERVOMOTORS - ATEX - OPERATING INSTRUCTIONS – 3010/21
3
RESOLVER CONNECTOR
INCREMENTAL ENCODER CONNECTOR
HYPERFACE ENCODER CONNECTOR
Thermal protection can have different pinout in the
connector according to customer needs.
NOTE ON EXPLOSION PROTECTION
•
Connector shall have a maximum temperature of
130°C. Wiring shall have a maximum
temperature of 90° C.
•
The tolerance of the connectors thread is
according to DIN 13, class 6g – 6H.
•
Do not unplug connectors while they carry
voltage, or the motor is running.
The drive shall be a sinusoidal three phases pulse with
modulation device with a bus voltage ≤ 750 VDC a
switching frequency 8 - 16 kHz, maximum rising
voltage/time in compliance with IEC60034-25 curve A
(cable length included). With different drive characteristics the motor
performances can vary.
NOTE ON EXPLOSION PROTECTION
Additional drive characteristics shall:
•
correctly manage the thermal protector
•
limit the common mode current
•
limit the current ripple due to PWM
•
limit electrical noise and vibrations by a fine
tuning of the parameters
THERMAL PROTECTION
NOTE ON EXPLOSION PROTECTION
•
Motor protection is made through appropriate
thermal protection. The drive has to handle the
input sent by the thermal protection. The input can
vary depending the type of those protection.
Below a list of thermal protection used. Other
thermal protection can be used according to
customer needs.
•
For full performances characteristic it's
recommended a transducer suitable for 120 °C
working temperature.
THERMAL PROTECTION
DRIVE HAS TO OPEN WHEN
PTO (Normally Closed)
the temperature is greater than 140°C
Normally Open
the temperature is greater than 140°C
KTY83-110 (PTC)
the resistance is greater than 2150 Ohm
KTY84-130 (PTC)
the resistance is greater than 1216 Ohm
KTY84-150 (PTC)
the resistance is greater than 1191 Ohm
SNM (PTC)
the resistance is greater than 1330 Ohm
KD 335 YGM (PTC)
the resistance is greater than 1330 Ohm
TF101/K (PT100)
the resistance is greater than 153,58 Ohm
B57227 -K333 A1 (NTC)
the ratio between the measured resistance
value and the resistance@25°C is less than
0,17251 Ohm
AM-LPTC600 (PTC)
the resistance is greater than 1262 Ohm
AM-LPTC1000 (PTC)
the resistance is greater than 2124 Ohm
EQUIPOTENTIAL BONDING
NOTE ON EXPLOSION PROTECTION
•
According to EN 60079-14 and 61241-0, it
shall be a connection to an equipotential
bonding system (see following figure).
•
The ground must be fixed in the appropriate pin
with size of 4 mm
2
and greater or equal to
conductor size.