8
05.01
8.16 VPM V oltage Protection Module
8-327
© Siemens AG 2008 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) -- 05/2008 Edition
When the VPM is tripped or in the event of a temperature fault, signaling contact
X3 opens and interrupts the pulse enable of the SIMODRIVE converter
(see Fig. 8-44).
!
Warning
The signaling contact X3 closes autonomously after t > 2 min or after the
temperature switch has been reset. Therefore, measures must be adopted to
prevent the drive from starting by itself!
off
≥ 60 _C
ϑ
ϑ
X3
on
≤ 55 _Cϑ
>2min
Fig. 8-44 Signaling contact X3 of the VPM
Table 8-7 Technical data, signaling contact X3
Designation
Technical specifications
Contact NC contact, floating
Switch rating 30 V DC at 0.1 A
Switching voltage/switching current min19V/10mA
Interrupts when the housing temperature ≥80 ±2.5 _C
Switches back ≤55 _C
Interruption time after the start of short--cir-
cuit operation
>2min
Note:
This value is valid 15 s after the drive and
pulse enable
!
Caution
When a VPM is tripped, the short--circuit thyristor must be safely cleared before
the connected drive can be switched on again. This is only ensured if the motor
has first come to a standstill.
An X3 signal contact that has closed again is not an explicit indication that
this has occurred.
Be especially cautious of this in the event of servicing.
Signal contact X3
Im
o
n
C
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Info
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on02.07
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