ABB OTM C 21D User Manual

18
AUTOMATIC TRANSFER SWITCH, OTM_C_21D
Table 6. LEDs
LED Display Status description
LN1/LN2 Source available Source available
OV: 5cycles/s;
UV:2cycles/s; Phase
missing:0.25cycles/s
OV: 5cycles/s; UV:2cycles/s; Phase missing:0.25cycles/s
Source not available Source not available
I/II Switch I or II closed Switch I or II closed
Switch I or II open Switch I or II open
Switching failure. Switching failure.
Auto Transfer switch in
automatic mode
Transfer switch in automatic mode
Transfer switch in test
mode or invalid setting
Transfer switch in test mode or invalid setting
Transfer switch in manual
mode
Transfer switch in manual mode
EMRG OFF Receiving emergency off
signals
Receiving emergency off signals
No emergency off signals
input
No emergency off signals input
Figure 12. LEDs
—
4.2 Leds

ABB OTM C 21D Specifications

General

Brand	ABB
Model	OTM C 21D
Category	Switch
Language	English