Moog G305-170, Operation Manual

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MSD Single-Axis System Operation Manual AC-AC Servo Drive
ID no.: CA65642-001 06/2018
moog
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Electrical installation
Control supply, Size 7
Terminal/pin Specification
X44/1 = +
X44/2 = -
• U
V
= 24 V DC ±10 % stabilised and smoothed
• For information on the current required for the control supply see Table A.17.
• Continuous current carrying capacity of the terminals maximum 10 A, internal reverse
polarity protection
• The power supply unit used must have safe and reliable isolation in relation to the mains as
per EN 50178 or IEC/EN 61800-5-1.
Table 4.5 Specification, control supply Size 7
4.8.2 Connection of power section supply (400/460/480 V AC)
Step Action Comment
1.
Specify the cable cross-section dependent on the rated
current and ambient temperature.
Cable cross-section according to local and
country-specific regulations and conditions.
2.
Wire the servo drive to suit its size and type of
connection. From 0.3 m (0.98 ft) cable length use
shielded cable!
See Figure 4.15
,
Figure 4.16
,
Figure 4.17
3.
Wire the mains choke
Reduces the distortion (THD) in the system
and prolongs the life of the servo drive.
4.
Install a mains isolating device K1
(power circuit breaker, contactor, etc.).
Do
not switch on
AC mains supply
yet!
5.
Use mains fuses (utilisation class gG) to isolate all poles
of the servo drive from the mains supply.
For compliance with equipment safety
requirements laid down in
IEC/EN 61800-5-1
DANGER ! Risk of injury due to electrical power!
• Carelessness will result in serious injuries or death.
Never make or disconnect electrical connections while they are electrically live! Always disconnect
the power before working on the device. Even 10 min. after switching off the mains supply,
dangerously high voltages of ≥50 V may still be present (capacitor charge). So check that
electrical power is not present!
CAUTION! Risk of injury or damage to the device due to incorrect residual current device!
• Carelessness may result in injuries or damage.
If local regulations require the installation of an residual current device, the following applies:
In the event of a fault the servo drive is able to generate DC leakage currents without zero crossing.
Servo drives therefore must only be operated with (RCDs)
1)
type B for AC fault currents, pulsating or
smooth DC fault currents, which are suitable for servo drive operation, see IEC 60755. RCMs 2) can
also be used for monitoring purposes.
1) Residual Current Device 2) Residual Current Monitor
Note the following points:
Switching the mains power:
− In the event of excessively frequent switching the device protects itself by means of high-
resistance decoupling from the mains. After a rest phase of a few minutes the device is ready
to start once again.
TN and TT system: operation is permitted if:
− In the case of single-phase devices for 1 x 230 V AC the supply system conforms to the
maximum overvoltage category III as per IEC/EN 61800-5-1.
− In the case of three-phase devices with phase conductor voltages 3 x 230 V AC,
3 x 400 V AC, 3 x 460 V AC and 3 x 480 V AC
The star point of the supply system is earthed and
The supply system conforms to the maximum overvoltage category III as per
IEC/EN 61800-5-1 at a system voltage (phase conductor
→
star point) of maximum 277 V.
IT system: operation is not permitted!
− If there is an earth fault the voltage is approx. twice as high. Clearances and creepages to
IEC/EN 61800-5-1 are no longer maintained.
− Connection of the servo drives via a mains choke is imperative:
− Where the servo drive is used in applications with disturbance variables corresponding to
environment class 3, as per IEC/EN 61000-2-4 and above (harsh industrial environment).
− For compliance with IEC/EN 61800-3, see Appendix.
− You will find further information on current carrying capacity, technical data and ambient
conditions in the appendix.