Product description
Functions and operating modes
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | [email protected] | www.turck.com
V01.00 | 2022/09 | 11
Phase failure protection (2-phase operation)
No external protective devices are required for protection against phase failure. Continuous 2-
phase operation is not recommended for this power class since the supplying 3-phase network
could become unbalanced.
However, if one phase fails, the unit may continue to operate if the load is below the power
limit s. fig.: Performance in 2-phase operation). Exceeding of these limits for an extended period
may result in a thermal shut-down of the unit.
During power-on, some start-up attempts can occur until a permanent output power is avail-
able. EMC performance, hold-up time, losses, and output ripple differ from a three 3-phase op-
eration. Such use is not included in the approval according to UL 61010 and IEC 62368.
PSU67
DC
AC
L1
PE
L2
L3
L1
L2
L3
open
Fig. 4: 2-phase operation
290
460
570
320
300
400
500
550
P
Out
/W
U
In
/VAC
0
Fig. 5: Performance in 2-phase operation
4.4.3
DC voltage outputs
The DC voltage outputs OUT1…OUT4 provide a stabilized and galvanically isolated 24 VDC
output voltage (PELV/ES1). The negative potential of the outputs is permanently connected to
PE in the device. The outputs are electronically protected against open-circuit, overload and
short-circuit and can supply any type of loads, including unlimited inductive and capacitive
loads.
When connecting capacitors with capacitance >20 mF to an output, this output may be
switched off after switching on the device or the output or connecting the load. All outputs are
individually current limited. In the event of an overload, the individual output switches off and
must be reset manually via the associated button or via IO-Link. The output can be reset at the
earliest 5 s after it has been switched off.
The outputs of the device are switched on in the delivery state. The outputs are not switched
off in a safety-related manner.
