ADB Safegate IDM 8000, User Manual

Page: 47 / 118

Note
: CCR can only start-up between ±15% of U1nom. After start-up it will operate between A- and A+ (-20%...+15%). If the
CCR is not in operation (Off state), Input voltage alarm A is given from –15% level.
B-levels are used as warning indication and can be set by the user. Reset mode is always A (resets automatically when actual
value returns within acceptable limits).
Header / function Data 1 Data 2 Fact set Allowed range
Input voltage protection Nominal value Nom Project * HW setting w.dip switch
Threshold level B + L b, + Project * Lb- … L a + in 1V steps **
Threshold level B – L b, - Project * La- … - Lb + in 1V steps
Delay time Delay 1s 0.1-10s in 0.1s steps
* Factory settings vary according the nominal input voltage of the project.
** L a, + and L a, - automatically set from the nominal value.
Setting sequence
1. Go to input voltage protection by selecting Set / Prot /U1.
1. Nominal value is displayed, select Next.
1. If necessary adjust levels Lb + and Lb – with + - , select Set and then select Next.
1. If necessary adjust delay time as in step 3.
Operational test
Change the U1 calibration in order to go beyond threshold limits (L a +/- or L b +/-) and make sure that the required function operates in
due time.
4.5.5 Input Frequency and Temperature Protection
Frequency function protects the lamps in the AFL circuit and also the CCR from possible regulation/component fault of the
CCR caused by long term input frequency fault.
If the input frequency is out of acceptable limits (F a, + and F a, -, automatically derived from nominal value) for a predefined
delay time the CCR trips. CCR can start automatically when the input frequency returns within acceptable limits.
Function Limit type Fnom Trip level Return level
Input frequency protection Threshold level A + 50/60Hz Fnom +10% (55/66Hz) Fnom + 7.5% (54/65Hz)
Threshold level A – 50/60Hz Fnom –10% (45/54Hz) Fnom – 7.5% (46/55Hz)
UM_IDM-8000, Rev. 1.7, 2021/05/06 35
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