----- Supply network analyzer CVMk and CVMk-ITF ------ Page Nº 54
12.5. APPENDIX E : CVM-RED-MAX module
With this module (Card type 0231 ) THREE billing periods can be controlled,
each one with a meter of kW.h, kvarh.L, kvarh.C and maximum power demand: The
CVMk has then a total of 9 METERS ( 18 meters for the four quadrants CVMk-4C ).
There are two ways for the change of the billing periods (tariffs):
a.- By HARDWARE:
It has three free voltage inputs ( 12 Vd.c. - 8 mA maximum).
- Two outputs for the selection of the tariff type which the CVMk is working with (
TARIFF 1, TARIFF 2 or TARIFF 3 ).
- One input for the synchronism with the utility demand period.
- CONNECTION TERMINAL OF COMBICON type ( 4 terminals ):
c
Tariff 2 (bridge between c-f )
d
Tariff 3 (bridge between d-f )
e
Synchronism with demand
controller clock
f
Common
b.- By SOFTWARE : The type of tariff can be also selected by programming the
CVMk through its serial port by means of a PC ( see manual of CVM_ST software).
The tariffs fixed for each billing period are programmed for every day.
4 3 2 1
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