Eaton DS7 Manual page 176

8 SmartWire-DT
8.9 Programming
172
ZMR function (ZMR_HA): "Automatic" mode
When in "automatic" ZMR mode, the DS7-SWD soft starter will be ready to
be switched on immediately after the thermal motor image falls below the
100 % mark. "Automatic" ZMR mode is activated by setting the ZMR M/A
output bit (output byte 0, bit 3).
DANGER

If the switch-on command for the DS7-SWD soft starter is sent
while in "automatic" ZMR mode, the motor will start up
automatically after the thermal motor image falls below the
100 % mark.
The illustration below shows the switching performance of soft starter
DS7-SWD on overload with the ZMR in Automatic mode.
110%
100%
Figure 131: "Automatic" ZMR operating mode
a Thermal motor model
b Switching command for soft starter DS7-SWD
c Switching state of soft starter DS7
d Trip reason: Overload with activated ZMR function
Input byte 1, bit 7 (ACKR acknowledgment) is not active in automatic mode.
DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
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b
c
d