BECKHOFF AX2500 - Manual (Page 20)

6.2.5 Ambient conditions, ventilation, mounting position
Storage, transport
ð p.13
Supply voltage tolerances
main power
AX250x
AX251x
auxiliary supply
w/o brake and w/o fan
with brake or with fan
min 1x115V
-10%
AC / max 1x230V +10% , 50/60 Hz
min 3x115V
-10%
AC / max 3x230V +10% , 50/60 Hz
min 3x230V
-10%
AC / max 3x400V +10% , 50/60 Hz
20 VDC ... 30 VDC
24 VDC (-0% +15%), check voltage drop
Ambient temperature in operation
0...+45 o C at rated conditions
+45...+55°C with power derating 2.5% / K
Humidity in operation rel. humidity 85%, no condensation
Site altitude
up to 1000m amsl without restrictions
1000...2500m amsl with derating 1.5% / 100m
Pollution level Pollution level 2 as per EN 60204 / EN 50178
Vibrations Class 3111 according to IEC 721-3-3
Noise emission max. 45 dB(A)
Enclosure protection IP 20
Mounting position normally vertical
ð p.34
Ventilation
AX25x3: free convection
AX25x6: add-on fan (
ð p.36)
Make sure that there is adequate forced ventilation in the closed control cabinet.
6.2.6 Conductor cross-sections
Technical requirements to cables
ð p.41.
Following EN 60204-1, we recommend :
AC connection 1.5 mm², depending on the system fusing
Motor cables, max. 25m 1 mm², shielded, capacitance <150pF/m
Resolver, motor thermostat,
max.100m 4x2x0.25 mm², twisted pairs, shielded,
capacitance <120pF/m
Encoder, motor thermostat,
max. 50m 7x2x0.25 mm², twisted pairs, shielded,
capacitance <120pF/m
Analog signals 0.25 mm² , twisted pairs, shielded
Control signals, BTB, DGND 0.5 mm²
Holding brake (motor) 0.75 mm², shielded, check voltage drop
+24 V / XGND
max. 2.5 mm²
Check voltage drop and total current!
To reach the max. permitted cable length, observe cable requirements
ð p. 41.
6.3 LED display
A 3-digit LED display indicates the amplifier status after switching on the 24V supply
(
ð p.89).
20 AX2500 Product Manual
Technical description
06/2007
BECKHOFF