Novar 300 - Page 8

NOVAR 300 Operation & Maintenance Manual NOVAR_CM
Page 8 of 29
2.1 RATINGS, OPERATING RANGES & FEATURES (cont.)
No-volt release
All output contacts are disabled within 15 ms. After the
supply voltage is restored, normal operation is resumed,
and the outputs are energised in sequence after the
appropriate safety lockout time has elapsed.
Burdens
Current circuit: 0.2 VA at In
Voltage circuit: 9 VA (6 stages energised)
15 VA (12 stages energised)
Net weight
All models: 1.5 kg
Terminals
Barrier type: M3.5
Plug-in wire size: 1...2.5 mm
2
(18...14 AWG)
Switching style
Rotational or linear (see Figure 3). Selected at time of
order. Rotational switching evens the contactor wear (for
the largest step size only) and generally reduces the
system response time. It is implemented for all sequences
on NOVAR 300, if requested.
Intelligent switching
If twice the minimum capacitor size (or more) is required,
then the NOVAR will switch in a double step. This applies
for all sequences. For sequence 00 (1:1:1:1), the second
capacitor will be connected after an additional delay of two
seconds.
Limit selection
Up to 12 plus alarm output. The maximum possible for any
configuration is determined by the number of relays fitted
and the selected sequence. If the selected value is too
high, the unit will automatically override it to the highest
allowable value.
Safety lockout
The time required to safely discharge a capacitor can be
set to any of 8 different values. The NOVAR will not allow
any capacitor to be re-energised until this time has
elapsed.
Providing that the safety lockout time has passed, the
capacitor can be called after one fifth of the programmed
time. It is not possible to override this lockout time.