Keba ServoOne Series, Operation Manual

Page: 45 / 92

Operation Manual ServoOne Supply Unit
45
ID no.: 1101.21B.6-00 Date: 04/2020
4.7.3 Precharging and mains synchronisation (X21) for BG5 and
BG6a
The DC link is precharged via the terminal X21/L1,L2,L3 (see Figure 4.7 and Figure 4.8).
At a defined DC link voltage the contact on the internal relay on terminal X21/HREL is
closed. The mains contactor closes and connects the supply system to terminal X12/
L1,L2,L3. The supply unit is synchronised with the mains via the terminal X21/L1,L2,L3.
For technical data on the mains contactor, see chap. A.11.
NOTe:
The cable must be protected using a circuit breaker. During installation pay
attention to the correct conductor phase angle, see Figure 4.7 and Figure 4.8.
For technical data on the circuit breaker, see chap. A.12
Specification, precharging and mains synchronisation X21
Precharging
and mains
synchronisa-
tion
(L1, L2, L3)
X21
HREL
L3
N
L1
L2
• U = 400/460/480 V AC
• I
Precharging
= 20 A (decreasing over a period of <
1.5 s)
• I
Synchronisation
< 100 mA
• Cable cross-section = 1.0 ... 1.5 mm
2
• (N: not used)
Auxiliary relay
(HREL)
• Max ratings for connection
• U
Max
= 30 V DC / I
Max
= 6 A
Table 4.6 Specification, precharging and mains synchronisation BG5 and BG6a
Caution! Risk of injury or damage to the device due to incorrect operation!
•
Carelessness may result in minor injuries or damage.
For safety reasons the connection X21/HREL on BG5 and BG6a is not allowed to be connect-
ed to SELV/ PELV circuits.
drawn by all axis controllers on starting and in operation. See chap. A.2,
p. 79.
NOTe:
Do not use the connector as a "switch" for a reset.
Specification, control supply
Control
supply
X9
1/+
2/−
• U
V
= 24 V DC -20 % +10 %, stabilised and smoothed.
• For max. starting/continuous current see Table A.10, p. 79
• Fuse protection for the terminal max. 10 A
• Internal polarity reversal protection
• The power supply unit used must have safe and reliable isolation
in relation to the mains as per EN 50178 or EN 61800-5-1
• Connected internally to X10
X10
1/+
2/−
• Connected internally to X9
Table 4.4 Specification, control supply BG5 and BG6a
4.7.2 Control supply 24 V DC (X44) for BG7
NOTe:
Along with the control section, the external control supply also supplies the
digital inputs and outputs (I
CONTROL SECTION
+ I
I/O
). Also pay attention to the current
drawn by all axis controllers on starting and in operation. See chap. A.2
Specification, control supply X44/ 1 + 2
Control
supply
X44
1 2 3 4 5 6 7
+24 V GND
• U
V
= 24 V DC -20 % +10 %, stabilised and
smoothed.
• For max. starting/continuous current see Table A.10,
p. 79
• Fuse protection for the terminal max. 10 A
• Internal polarity reversal protection
• The power supply unit used must have safe and
reliable isolation in relation to the mains as per
EN 50178 or EN 61800-5-1
Table 4.5 Specification, control supply BG7
Electrical installation