RK07 questions

Hi all, I am working on the last peripheral device connected to my 11/34, two RK07s. This will be my first experience with RK07 drives, so I have a few questions. I installed the RK611 in the system (in an expansion box) and made sure that the UNIBUS is OK. The 11/34 starts, and I can boot RT11 from DL0:. ".SH DEV" shows that the DM.SYS driver is installed. However, after loading a pack the RT11 commands ".DIR DM0:" or ".INIT DM0:" report an error. I must say that the READY light did not turn ON on the drive. I switched the 11/34 OFF, because I think I need to take a closer look at the RK07 drive itself first. Here is what I did and saw. I removed the metal cover at the top-rear side. Now you can see the big magnet and the head assembly. I first checked the "emergency retract" mechanism. When you push down the lever that locks the heads, and gently push the head assembly forward toward the cartridge compartment, the heads are pulled back as soon as the little microswitch is (dis)engaged. Then I loaded a pack and pushed the LOAD button. After some 20 seconds the disk has spun up (I assume), because the heads start to move. The heads first move at a moderate speed toward the centre of the cartridge (I would say a full travel), stop, and then move back at that same speed, but not completely to the home position. Again, I *assume* that the heads detected track 0 and stay there. However, the READY lamp does not go ON. It could not, because the lamp was defective :-) After replacing the lamp with a checked-good lamp, I repeated the exercise. The heads show the same movement, but the READY light stays OFF. 1. Is that head movement behaviour correct? I will try to make a movie of the movement this weekend ... 2. What would the head movement be if the pack was bulk-erased? 3. Should the READY lamp go ON? An other thing I noticed. As the 11/34 is OFF, there is no controller connected to the RK07 drive. OK, it is, but not powered. With the RL drives the FAULT lamp will be ON if the controller is not powered. Is this the same for the RK07? The RK611 controller is not powered, but the FAULT lamp stays OFF. I did check that the lamp is OK. Is this correct behaviour? thanks, - Henk, PA8PDP. This message and attachment(s) are intended solely for the use of the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message. Thank you for your cooperation.