[Nut-upsuser] nut 2.2 and pulsar M200

[goudard sabine]

I work with an ups pulsar m2200 and Nut 2.2
I installed psp
all is OK but when the power to the UPS is cut
I have these events 
Nov 20 11:36:39 mezenc upsd[2620]: listening on 0.0.0.0 port 3493
Nov 20 11:36:39 mezenc upsd[2620]: Connected to UPS [pm2200]:
mge-shut-pm2200
Nov 20 11:36:39 mezenc upsd[2621]: Startup successful
Nov 20 11:36:39 mezenc upsmon[2655]: Startup successful
Nov 20 11:36:40 mezenc upsd[2621]: Connection from 127.0.0.1
Nov 20 11:36:40 mezenc upsd[2621]: Client user_ups at 127.0.0.1 logged into UPS
[pm2200]
Nov 20 11:41:15 mezenc upsmon[2656]: UPS pm2200 at localhost on battery
Nov 20 11:41:15 mezenc upssched[3798]: Executing command: ups-on-battery
Nov 20 11:41:15 mezenc upsd[2621]: Connection from 127.0.0.1
Nov 20 11:41:15 mezenc upsd[2621]: Client on 127.0.0.1 logged out
Nov 20 11:41:15 mezenc upsd[2621]: Connection from 127.0.0.1
Nov 20 11:41:15 mezenc upsd[2621]: Client on 127.0.0.1 logged outand then
the 

and after a few minuts I have an error data stale and my computer and my UPS
shutdown 

Nov 20 12:05:44 mezenc upsd[2632]: Data for UPS [pm2200] is stale - check
driver
Nov 20 12:05:44 mezenc upsd[2632]: Connection from 127.0.0.1
Nov 20 12:05:44 mezenc upsd[2632]: Client on 127.0.0.1 logged out
Nov 20 12:05:44 mezenc upsd[2632]: Connection from 127.0.0.1
Nov 20 12:05:44 mezenc upsd[2632]: Client on 127.0.0.1 logged out
Nov 20 12:05:49 mezenc upsmon[2667]: Poll UPS [pm2200 at localhost] failed -
Data stale
Nov 20 12:05:49 mezenc upsd[2632]: Connection from 127.0.0.1
Nov 20 12:05:49 mezenc upsd[2632]: Client on 127.0.0.1 logged out
Nov 20 12:05:59 mezenc upsd[2632]: Connection from 127.0.0.1
Nov 20 12:05:59 mezenc upsd[2632]: Client on 127.0.0.1 logged out
Nov 20 12:06:04 mezenc upsmon[2667]: Poll UPS [pm2200 at localhost] failed -
Data stale
Nov 20 12:06:04 mezenc upsd[2632]: Client user_ups at 127.0.0.1 set FSD on UPS
[pm2200]
Nov 20 12:06:04 mezenc upsmon[2667]: Executing automatic power-fail shutdown
Nov 20 12:06:04 mezenc wall[4075]: wall: user ups broadcasted 2 lines (43
chars)
Nov 20 12:06:04 mezenc upsmon[2667]: Auto logout and shutdown proceeding
Nov 20 12:06:04 mezenc wall[4078]: wall: user ups broadcasted 1 lines (37
chars)

I use the psp script (upssched-cmd)
and when I have these errors, battery.charge of my UPS is 60 and
battery.charge.low is fix at 20

Can you help me ?
Best regards

Sabine Goudard