rigert PEGASUS-NOVA-mps2 - Safety Circuit Checks; Safety Circuit I and II Continuity Testing

rigert Ltd., Stairlifts
Operating manual
Nr.: AW4231
CH-6405 Immensee
Fault finding PEGASUS-NOVA-mps2
Date: 13.03.06
Page: 13/22
5 Check safety circuit I and II
Check the safety circuit along:
- Safety end limit switch top end
- Arrestor / overspeed governor
- Safety end limit switch bottom (if applied)
- Slack rope (if applied) (for drive 400 only)
- Drive cabinet door switch (if applied)
for continuity.
To check: Take off wire from terminal 1 and 16 (make sure other wires stay in place !!)
Measure continuity from the 2 taken off wires.
 If continuity: proceed to point 6
 if no continuity: Check switches and its wiring for faults (use diagram)
You might also bridge the safety circuit but bear in mind that you create a dangerous
situation:
- Take off the arrestor pawl (support rope might be damaged)
- Safety end limit switches out of operation (carriage could overtravel –collosion
between rail end ad carriage – worst case: damage of upper trolley and rope !)
 apply a bridge between 1 – 16
if the installation runs, then, the fault has to be within the bridged circuit !
16 32
Brid
g
e
Any switch not
present, needs to
be bridged !!
Check and make sure:
- Bridge 16 – 32 is
installed
- Bridge 4 – 11 is
installed
- Not applied other
switches are bridged
- Bridges are installed
correctly
-
S7: Not applied
S8: only if drive
cabinet
S28: Not applied in
ti ti if
!
11
4