24
Operating Instructions – AC Motors DR / DV / DT / DTE / DVE / Asynchrounos Servo Motors CT / CV
5
Accessory equipment
Electrical Installation
5.16
Accessory equipment
Connect supplied accessory equipment according to the wiring diagrams included.
TF temperature sensor
The positive temperature coefficient (PTC) thermistors comply with DIN 44082.
Resistance measurement (measuring instrument with V
≤
2.5 V or I < 1 mA):
•
Standard measured values: 20...500
Ω
, thermal resistance > 4000
Ω
•
Measured values pole-changing with separate winding: 40...1000
Ω
,
Thermal resistance > 4000
Ω
TH winding thermostats
The thermostats are connected in series as standard and open when the permitted
winding temperature is exceeded. They can be connected in the drive monitoring loop.
Forced cooling
fan
Motor sizes 71 - 132S
Do not apply voltage!
When using the temperature sensor for thermal monitoring, the evaluation function must
be activated to maintain reliable isolation of the temperature sensor circuit. If the
temperature reaches an excessive level, the thermal protection function must be
effective immediately.
V
AC
V
DC
Voltage U [V]
250
400
60
24
Current (cos
ϕ
= 1.0)
[A]
2.5
0.75
1.0
1.6
Current (cos
ϕ
= 0.6)
[A]
1.6
0.5
Contact resistance max. 1 ohm at 5 V = / 1 mA
VS system
•
1 x 230 V
AC
, 50 Hz
•
Connection in separate terminal box
•
Max. connection cross section 3 x 1.5 mm
2
•
Cable screw fitting M16x1.5
Refer to the VS wiring diagram for information about connecting the VS forced cooling
fan (order number: 0975 8385).