Connectors
7.9
X32 – 24 V Logic Supply
Connection of 24 V source to supply (directly or indirectly) the logic, the I/O output volt-
age (X12), the STO auxiliary voltage (X70) and the device fan
2-pole PCB connector, suitable for the following mating connectors
▶
FKCN 2,5/ 2-ST-5,08 (Phoenix Contact: 1754568); no picture
▶
TFKC 2,5/ 2-ST-5,08 BK (Phoenix Contact: 1741144); double-level to forward the
24 V voltage, see picture
Mating connector X32
Pin
I/O
Name
Meaning
2
I/O
GND
Ground
1
I
24V
24 V supply for logic and inputs/outputs:
▶
Voltage: 24 V
DC
−15 %/ +20 %
▶
Current consumption: see technical data
of your device variant
Specification of terminal connections:
▶
Conductor cross-section solid: 1 to 1.5 mm²
▶
Conductor cross-section flexible: 1 to 2.5 mm²
▶
Connection method:
Push-in spring connection (p. 60)
7.10
X33 – Mains supply / Ballast Resistor
Combined connector for device mains supply and ballast resistor (internal/external)
DANGER
High voltages in the intermediate circuit
Note that even after the device unit has been switched off high voltages
may occur in the intermediate circuit of the complete system that can cause
serious injuries.
→ Wait until the intermediate circuit is fully discharged before cutting the
connections of the external ballast resistor ("capacitor discharge").
→ Take the following steps
before
working on the device or on the inter-
mediate circuit:
→ Disconnect the device definitely from the mains supply.
→ Wait until the discharge time of the of the DC link capacities has ex-
pired. It is longer than 4 minutes.
→ Ensure by measuring that the intermediate circuit is fully discharged.
→ Disconnect the connections of the external ballast resistor from the
power supply.
→ Also consider general safety instructions before you continue working
on the device.
NOTICE
Property damage due to incorrect mains connection
Direct connection to
ungrounded / asymmetrically grounded mains
(IT mains with
start point / IT delta mains) can destroy the devices.
Connecting the device to this mains type is only possible with isolating transformer.
→ Also consider the manual "Unit Assembly Complying to EMC", chapter "Connec-
tion to Different Supply System Types".
78
Drive System SD4S - Hardware Description
